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<h1>Prospekt_Bauwerksinstandsetzung_EN_2626_web.pdf</h1> <p>SCHOMBURG <br />Problems Solved.</p> <p>BUILDING <br />RESTORATION <br />Requirements. <br />Methods. Products.</p> <p>schomburg.com</p> <p>Building restoration | Contents</p> <p>Contents <br /> <br />04</p> <p>BUILDING TIMELINE FEATURES <br />Typical damage and impairment of the building structure</p> <p>PROBLEMS SOLVED. <br />FOR EVERY REQUIREMENT. <br />The renovation of older building <br />structures is constantly gaining <br />meaning – and the protection of the <br />building structure against destruction <br />by water plays a central role here. <br />A building that stands in the ground will surrender to decay if it is not <br />adequately protected against moisture. A damp wall is not only a <br />thermal bridge but can attract further damage. In contrast, a dry wall <br />contributes to a reduction in energy costs.</p> <p>In order to successfully convert this solution and for the long term <br />preservation of the property, the correct building material systems <br />and their correct application is necessary. In particular there are <br />frequently damp and salt laden substrates in old buildings. To <br />professionally renovate these areas for the long term, the salt <br />contamination arising must be analysed exactly, in order to be able <br />to use the appropriate product systems. Also previously mouldy areas <br />require a specific solution. <br />With the THERMOPAL® restoration plaster system, <br />SCHOMBURG offers a complete sustainable and economical <br />system, which provides the correct solution for every requirement. For <br />the long term preservation of buildings, for a pleasant living climate <br />and for an increase in value of the property..</p> <p>06</p> <p>SUBSTRATE PREPARATION</p> <p>20</p> <p>Basis of a sustainable functioning renovation</p> <p>08</p> <p>Options for substrate preparation</p> <p>10</p> <p>Horizontal barriers</p> <p>12</p> <p>Blocking renders</p> <p>14</p> <p>The renovation plaster system</p> <p>16</p> <p>THERMOPAL -RENOVATION PLASTER SYSTEM</p> <p>18</p> <p>The basic renovation plaster system</p> <p>20</p> <p>The rapid daily system </p> <p>22</p> <p>The flexible refurbishment system with radon protection</p> <p>24</p> <p>The traditional refurbishment system</p> <p>26</p> <p>The restoration plaster system with insulating properties</p> <p>28</p> <p>The restoration plaster system without the need for</p> <p> <br />®</p> <p>additional waterproofing measures <br />30</p> <p>The soil remediation system</p> <p>32</p> <p>GLOSSAR</p> <p>Now the good news: Based on a well founded building condition <br />analysis, realistic renovation recommendations can be compiled.</p> <p>2</p> <p>3</p> <p>Building restoration | Building timeline features</p> <p>Building timeline <br />FEATURES <br />Typical damage and impairment of <br />the building structure <br />Around the turn of the century existing Wilheminian districts shaped our <br />towns. The houses so beloved today and also older sacred buildings <br />were built as massive masonry work constructions – unfortunately without <br />adequate vertical and horizontal waterproofing. This resulted in moisture <br />penetration to cellars and external walls. <br />NATURAL STONE <br />MASONRY WORK <br />The incorporation of a horizontal barrier in natural stone <br />masonry is to be considered on an individual basis. <br />According to experience, the moisture transportation in the <br />capillaries of a natural stone wall is very low, that only allows <br />capillary water transportation in the mortar present in the wall <br />profile. The incorporation of a horizontal barrier in a natural <br />stone masonry wall is always laborious due to the <br />configuration. There are various constructions, perhaps filled <br />with straw or filling material</p> <p>MASONRY WORK <br />With masonry brickwork, one must differentiate between baked <br />bricks and clinker. The baked brick was “baked” up to approx. <br />900 °C. It is relatively open-pored and can absorb a large <br />amount of water. This means that hydrophobic materials work well <br />here. In contrast, clinker was “baked” at above 1200 °C. This <br />strong fusion ensured that they absorbed little or no water and <br />were frost resistant and weather resistant overall. <br />Dependent on the stone, moisture transportation can only occur <br />via the mortar in the vertical and horizontal joints. Until well into the <br />20th century, baked bricks were dense solid bricks without pores <br />or void formers. Not to be compared with today’s bricks. In the <br />70s with the arrival of the first porous hollow bricks, capillary <br />water transportation increased. Assuming the waterproofing of <br />buildings was not technically correct.</p> <p>4</p> <p>DAMAGE THROUGH WATER <br />Water can damage the building and the building materials <br />used in many ways at the same time: <br />· Capillary water absorption <br />· Seepage water or water running down slopes – <br />under pressure <br />· Driving rain <br />· Gaseous (condensate)</p> <p>DELAMINATION AND <br />EFFLORESCENCE <br />This type of damage occurs through salts detrimental to buildings. <br />A chemical process in the building material, activated by <br />penetrating moisture, dissolves salts and transports them with the <br />moisture to the surface of the building component. Salts can also <br />end up in the building component externally. De-icing salts <br />dissolved in water can migrate into the building and take the <br />opposite direction to the building components surface during the <br />drying process. However, not without the building component <br />being unharmed. If there is a “dense” building material present <br />(e.g. cement render), the salts can concentrate behind it. <br />The render is blown off due to the increase in volume of the salts. <br />If there is a “permeable” building material present (e.g. lime-cement <br />render, lime render), the moisture, with the dissolved salts migrates to <br />the surface of the building component where the salts crystallize. <br />Here restoration plaster systems are used. They have the essential <br />role of relocating the evaporation layer in the restoration plaster and <br />storing the salt, without damage, in the pore volume present.</p> <p>ENERGY IMPLICATIONS <br />OF MOISTURE <br />If the moisture content in masonry is reduced, this also influences <br />heat loss. The thermally insulating properties of the building are <br />returned to their original condition. In every case consult a <br />planner/energy advisor for an effective thermal insulation concept. <br />The most secure solution to the renovation of a damp cellar is to <br />renovate the side facing the ground. Only if this is not possible, <br />should the renovation be planned from the inside.</p> <p>i <br />Old buildings are especially vulnerable to damp as the <br />masonry work is rarely effectively waterproofed. <br />Deleterious salts are formed, which makes restoration necessary. <br />5</p> <p>Building restoration | Substrate preparation</p> <p>SUBSTRATE <br />PREPARATION <br />Basis of a sustainably <br />functioning renovation</p> <p>Even the best building materials must be in harmony with the substrate <br />upon which they are used. In order to ensure optimum bond and a long <br />lasting function, it is necessary to thoroughly and carefully prepare the <br />building area to be treated.</p> <p>Possibilities for substrate <br />preparation <br />Page 08</p> <p>Horizontal barriers <br />Page 10</p> <p>Blocking renders <br />Page 12</p> <p>The restoration plaster system <br />Page 14</p> <p>i <br />On the following pages, we outline <br />preparation and sanitation systems. <br />6</p> <p>7</p> <p>Building restoration | Possibilities for the preparation of the substrate</p> <p>Possibilities for the <br />substrate preparation</p> <p>1. <br />2.</p> <p>Abrasion</p> <p>Cleaning</p> <p>3. Priming</p> <p>Detailed specifications on the preparation of substrates and their specific <br />requirements are described in the WTA data sheet 4–6 “Retrospective <br />waterproofing of buildings in contact with the ground”.</p> <p>4.</p> <p>The optimum treatment of the substrate is based on the existing waterproofing <br />situation of the project. Therefore, different steps are taken for internal than <br />external waterproofing. Depending on the topic, there are different system <br />solutions for each particular application.</p> <p>5. <br />6.</p> <p>Splatterdash coat/bonding coat <br />Levelling</p> <p>1.</p> <p>2.</p> <p>3.</p> <p>4.</p> <p>The substrate must be load-bearing, open pored and free form <br />dirt. Uneven areas and ridges must be thoroughly removed. <br />In addition the area should be free for gaping cracks and <br />adhesion impeding substances such as oil, paint, laitance layers <br />and loose components. Level up open butt joints and surface <br />irregularities of up to 5 mm or uneven areas of stone (e.g. render <br />grooves in brickwork or dense concrete blocks) with a mortar <br />such as AQUAFIN® -1K or ASOCRET-M30. Non-sealed defects, <br />which are deeper than 5 mm, some mortar joints, or damaged <br />areas are also to be rectified with ASOCRET-M30. Substrates <br />should be treated related to the project and application type <br />before further work e.g. by pre-wetting, priming with e.g.</p> <p>ASO® -Unigrund or applying a bonding coat such as <br />THERMOPAL® -SP. This achieves an even absorption and an <br />optimum bond. A solution for non-absorbent substrates such as <br />e.g. metal would be ASODUR® - GBM (incl. broadcasting with <br />quartz sand) to provide a pore-free primer. Where there is rear <br />moisture penetration, pre-waterproofing against negative water <br />pressure is necessary. <br />This can be a mineral-based, rigid waterproof slurry <br />(AQUAFIN® -1K), a blocking render (ASOCRET-M30) or, <br />depending on the system, a reaction resin coating (ASODUR® SG2/-SG2-thix). An additional bonding coat (splatterdash coat THERMOPAL® -SP) is necessary beneath renders.</p> <p>5.</p> <p>6.</p> <p>Grid float use</p> <p>The path to the right solution: <br />1.</p> <p>BUILDING CONDITION ANALYSIS</p> <p>2. PRODUCING A COMPETENT</p> <p>RENOVATION RECOMMENDATION</p> <p>Before every renovation project, a professional <br />analysis of the building condition must be carried <br />out. <br />Depending on the renovation processes and <br />demands, obtain information on the following <br />points: <br />• Type of construction <br />• Wall thickness <br />• Strength <br />• Cracks, voids, crevises <br />• Structural analysis <br />• Repairs already undertaken, if necessary <br />• Building materials used <br />• Circumstances of dampness <br />• Future use</p> <p>Optimum substrates are concrete with a dense <br />microstructure, cement-based screeds, renders P II <br />or P III and fully pointed masonry work. <br />3. SALT CONVERSION</p> <p>Following the successful determination of the type <br />and quantity of the salts occurring (salts analysis), <br />the salt conversion (chlorides and sulphates from <br />readily soluble to scarcely soluble) can be carried <br />out (ESCO-FLUAT).</p> <p>Salts and possible causes <br />Salts <br />Sulphates</p> <p>Possible causes</p> <p>Conversion to low solubility salts</p> <p>Gypsum, mineralised ground water</p> <p>Yes</p> <p>Chlorides</p> <p>De-icing salt</p> <p>Nitrates</p> <p>Fertilizer, urea</p> <p>8</p> <p>Yes <br />No</p> <p>9</p> <p>Building restoration | Horizontal barriers</p> <p>The horizontal barrier Injection <br />method against capillary rising damp <br />Horizontal barriers reduce the transportation of capillary moisture in masonry <br />work and can also be installed retrospectively. They can be incorporated <br />into masonry work through different injection methods. <br />Use</p> <p>Above the horizontal barrier, the masonry work should have <br />the possibility to reach equilibrium moisture dependent on <br />which use. <br />The supply of capillary moisture must not be completely <br />prevented. Use aqueous (AQUAFIN® -F silification solution) or <br />paste products (AQUAFIN® -i380 Injection cream).</p> <p>PRELIMINARY INVESTIGATION</p> <p>Before starting the process, a preliminary investigation of the <br />masonry work must be undertaken (e.g. degree of moisture <br />penetration). If there are cracks, loose joints or missing areas, the <br />injection material can flow out uncontrolled. A trial injection is <br />recommended dependent on the circumstances. Later removal of <br />a drill core and subsequent dampening can be used to prove <br />the functionality.</p> <p>Injection method</p> <p>Dependent on the thickness of the masonry and the degree of <br />moisture penetration (DFG 60%/80%/95%) there are injection <br />methods under pressure (low pressure method < 10 bar) or <br />pressureless method (gravity and capillary transportation of the <br />active material). Classic aqueous horizontal barriers are applied <br />using the pressureless method up to a degree of moisture <br />penetration of < 60%. With a degree of moisture penetration <br />> 60% application by low pressure methods is recommended.</p> <p>Here holes are drilled into the masonry at a spacing of 10–12.5 <br />cm centres (hole centre to hole centre). With paste based <br />injection, the drill holes are arranged horizontally in the joints, <br />with aqueous injection with an inclination angle of up to 45°. <br />The depth of the drilled holes is to be 5 cm less than the <br />thickness of the masonry work. With walls thicker ≥ 60 cm, <br />it is recommended to arrange the row of holes from both sides. <br />The depth of hole drilled is then 2/3 of the thickness of the <br />masonry per side. With multi-row arrangements, a height <br />difference from joints is advisable (≤ 8 cm).</p> <p>10</p> <p>2.</p> <p>3.</p> <p>4.</p> <p>5.</p> <p>5.</p> <p>MODE OF OPERATION</p> <p>Using pressurised methods, the injection material is injected via <br />appropriate injection packers into the substrate. The injection <br />material is pressed in the pores of the building material and <br />forms a hydrophobic (water repellent) level so that moisture can <br />no longer be transported upwards via the capillaries. <br />When the degree of moisture penetration is low, injection is also <br />possible with pressureless methods. <br />One of the particular advantages of an injection cream <br />(AQUAFIN® -i380): Even with a degree of moisture penetration <br />of up to 95%, it can be used with pressureless methods. The <br />active ingredient it contains is very fine and highly effective due <br />to its special composition. It does not react with water but <br />exclusively with the substrate. AQUAFIN® -i380 is hydrophilic <br />and disperses especially quickly in the existing water in the</p> <p>1.</p> <p>Levelling wall</p> <p>areas</p> <p>2.</p> <p>E stablishing <br />drill holes</p> <p>AQUAFIN- i380 <br />Injection cream for retrospective <br />horizontal barriers</p> <p>masonry work. Over time, this leads to 100% saturation of the <br />pores. Using the practical 550 ml tubular bags, application is <br />carried out with an injection gun. Using a slow squeezing <br />action whilst extruding through the supplied injection tube, will <br />completely fill the drill hole. Application is also possible with <br />horizontal drill holes and where there is inhomogeneity in the <br />masonry work. The risk of uncontrolled flow as with aqueous <br />horizontal barriers is not applicable.</p> <p>4.</p> <p>F illing <br />voids</p> <p>Following the reaction with the substrate, it imparts water <br />repellency to the capillary walls. Capillary water transportation <br />is impeded and the substrate dries out. The material is tested <br />and certified at a degree of moisture penetration of 95% to the <br />WTA data sheet 4-10-15/D (“injection method for certified <br />injection materials against capillary moisture”).</p> <p>5.</p> <p>Producing horizontal barriers <br />(paste)</p> <p>Sealing the drill holes</p> <p>Cleaning <br />3. drill holes</p> <p>AQUAFIN-F <br />Silification solution for producing <br />horizontal barriers</p> <p>1.</p> <p>Producing horizontal barriers <br />5. <br />(aqueous)</p> <p>After completing the horizontal waterproofing measures, <br />completely seal the drill holes and flush the surface using <br />ASOCRET-M30 or project driven with ASOCRET-BM.</p> <p>Expert-Advice <br />If there is an area with negative moisture <br />penetration, then a complete waterproof membrane <br />is necessary – for instance with a blocking render. <br />With internal waterproofing, it is important that <br />the horizontal barrier is incorporated above the <br />area exposed to damp (e.g. floor zone). <br />With a planar arrangement, the wall would take <br />on the condensation and the moisture would climb <br />further up the wall. Then areas not previously <br />involved could be affected. The same is also true for <br />integral interior walls.</p> <p>11</p> <p>Building restoration | Blocking renders</p> <p>The blocking renders in retrospective <br />internal waterproofing with a <br />mineralbased mortar system <br />In principle an exterior waterproof membrane is preferred to an interior one. <br />Only if waterproofing externally is impossible due to technical construction <br />reasons, must, therefore, be replaced by interior waterproofing.</p> <p>Waterproof slurry or blocking render <br />Water exposure</p> <p>Mineral based waterproof slurry <br />(e.g. AQUAFIN- RB400)</p> <p>Water impermeable factory produced <br />mortar (e.g. ASOCRET-M30)</p> <p>Minimum dry film <br />thickness in mm</p> <p>Minimum number <br />of coats</p> <p>Minimum dry film <br />thickness in mm</p> <p>Minimum number <br />of coats</p> <p>Ground moisture/ <br />non standing seepage water</p> <p>2</p> <p>2</p> <p>20</p> <p>2</p> <p>Standing seepage water/ <br />water under pressure</p> <p>3</p> <p>3</p> <p>20</p> <p>2</p> <p>Source: WTA data sheet 4–6</p> <p>OBSTACLES TO EXTERIOR WATERPROOFING</p> <p>TYPICAL AREAS OF APPLICATION ARE:</p> <p>Expert-Advice</p> <p>· Too short a distance to neighbouring buildings <br />· The building stands immediately next to a heavily <br />trafficked road <br />· Extending vertically (partial basement of the building)</p> <p>· Levelling hollow spots, loose joints and other defects <br />· Establishing a coved fillet for the wall/floor transition and <br />internal corners <br />· Filling a notch in the potentially existing horizontal barrier</p> <p>If there is planar moisture exposure on a wall then the use <br />of a mineral-based mortar system is required. There is a <br />variation between thin applied waterproofing (mineral-based waterproof slurries) and thick layer systems (blocking <br />renders). Note that the exposure of the wall to moisture <br />does not decrease. The wall stays permanently damp so it <br />must be ensured that the moisture does not climb further <br />into the masonry work and affect the building even more. <br />Therefore a horizontal barrier is incorporated at the floor</p> <p>AREAS OF APPLICATION WITH WATER <br />IMPERMEABLE BLOCKING RENDERS</p> <p>The application of a restoration plaster can be carried out over <br />a minimum 20 mm blocking render to regulate the climate.</p> <p>zone and integral cross walls. A mineral-based mortar <br />system requires a load-bearing, mineral-based substrate. <br />With even wall areas with the need to level, the use of a <br />mineral-based waterproof slurry in combination with a <br />horizontal barrier is adequate. It is recommended that a <br />restoration plaster is applied over the waterproofed area, <br />which can regulate the room climate due to its mode of <br />operation (see chapter “The restoration plaster” p 12). <br />In this way a pleasant room climate is established.</p> <p>With interior waterproofing and the need to level the wall areas, revert <br />to a water impermeable factory mortar such as ASOCRET-M30.</p> <p>1.</p> <p>Preparation of the wall/ <br />floor junction</p> <p>2.</p> <p>Possible preliminary <br />waterproofing</p> <p>3. <br />4. <br />1.</p> <p>2.</p> <p>3.</p> <p>5. <br />6.</p> <p>Splatterdash coat <br />Application <br />Striking off <br />Rubbing with a grid float</p> <p>Further information <br />about the products can <br />be found online.</p> <p>4.</p> <p>12</p> <p>5.</p> <p>6.</p> <p>ASOCRET-M30 <br />Repair and <br />levelling mortar <br />up to 30 mm</p> <p>13</p> <p>Building restoration | The restoration plaster system</p> <p>The balanced restoration plaster system <br />A solution for restoring a wall exposed to salts and/or damp is always a <br />perfectly matched restoration plaster system. A single restoration plaster is <br />not a solution. WTA certified product systems consist of factory produced <br />mortars. Building site mixes are not approved. <br />COMPONENTS</p> <p>If a “permeable” render (lime-cement render, lime render) is used, <br />the moisture migrates through the wall. Moisture spots are formed <br />or salts are transported to the surface and crystallised there.</p> <p>(WTA certified restoration plaster system) <br />· Splatterdash coat <br />· Backing / levelling plaster <br />(air entrained backing coat plaster) <br />· Restoration plaster <br />· Fine plaster</p> <p>WHY RESTORATION PLASTER SYSTEMS?</p> <p>A restoration plaster is water repellent. Water can only penetrate <br />up to 5 mm into the restoration plaster. This lies in the low capillary <br />conductivity. The moisture can diffuse through the plaster layer <br />especially well, leaving as water vapour and salts can be stored <br />in the high volume of pores without leaving damage behind.</p> <p>If masonry work exposed to moisture is coated with a “dense” <br />render (cement-based render), the moisture is locked in or salts <br />blow off the existing render.</p> <p>KNOW: Everything about restoration plasters <br />What are restoration plasters used for? <br />Restoration plasters are used for producing vapour permeable <br />and dry plaster surfaces on damp or salt laden interior and <br />exterior walls.</p> <p>Can I also mechanically apply THERMOPAL® <br />restoration plaster systems? <br />Yes, for instance with the PFT G4. Refer to the configuration in <br />the “THERMOPAL® equipment plan”.</p> <p>At what thickness must restoration <br />plasters be applied? <br />The minimum thickness of THERMOPAL® restoration plasters is <br />20 mm. With high to medium salting, apply the restoration <br />plaster in two layers from a minimum thickness of between 25 <br />and 40 mm. Waiting time between layers: one day per <br />millimetre of thickness.</p> <p>What are the differences of restoration plasters? <br />THERMOPAL® -GP11 and THERMOPAL® -ULTRA are WTA <br />certified products (WTA data sheet 2-9-04/D). Restoration <br />plasters to WTA guidelines have salt storing, hydrophobic <br />properties and increased water vapour diffusion whilst at the <br />same time having reduced capillary conductivity. <br />THERMOPAL® -ULTRA hardens quickly and permits early <br />treatment of the plaster surface.</p> <p>Which bonding coat is needed <br />for a restoration plaster? <br />Use the splatterdash mortar THERMOPAL® -SP as a bonding coat <br />for THERMOPAL® -ULTRA as well as THERMOPAL® -GP11. The <br />gauging water for THERMOPAL® -SP can be modified with the <br />hardening and adhesion medium ASOPLAST-MZ with very <br />strongly or weakly absorbent substrates. <br />THERMOPAL® -SP can also be used as a splatterdash coat for <br />cement-based or cement-lime-based renders. <br />How can restoration plaster <br />be coloured? <br />Highly vapour permeable coatings such as silicate paints can be <br />used on restoration plaster systems.</p> <p>Properties</p> <p>1. Splatterdash coat</p> <p>· Bonding agent</p> <p>· Thickness max. 0.5 cm <br />· Half cover (<50%) <br />· Full area application on waterproofed substrate <br />· Not suitable for filling joints</p> <p>≤5 <br />10 – 20 <br />10 – 20</p> <p>2. Backing coat/levelling <br />plaster (backing coat <br />plaster with air pockets)</p> <p>· Levelling large irregularities <br />(levelling plaster) <br />· Salt store where the substrate has <br />particularly high levels of salts <br />(backing coat plaster)</p> <p>· N ot water repellent, highly vapour permeable <br />· To be applied at thickness from 10-30 mm <br />· Suitable for filling joints</p> <p>≤5 <br />≥10 <br />≥15</p> <p>3. Restoration plaster</p> <p>· Promotes masonry work drying <br />· High pore volume <br />through high water vapour permeability · Inner hydrophobicity <br />· Encases crystalline salts <br />· Impedes condensation formation on the surface <br />· Minimum thickness 20 mm <br />· Maximum thickness 40 mm <br />· With multi-layer applications, minimum 10 mm <br />per layer <br />· Climate regulation</p> <p>4. Fine plaster</p> <p>· Optimum design</p> <p>Treatment</p> <p>Thickness <br />in mm</p> <p>Low</p> <p>1. Splatterdash coat <br />2. WTA restoration <br />plaster</p> <p>≤5 <br />≥ 20</p> <p>Medium <br />or high</p> <p>1. Splatterdash coat <br />2. WTA restoration <br />plaster <br />3. WTA restoration <br />plaster</p> <p>High</p> <p>1. Splatterdash coat <br />2. Porous backing coat <br />plaster <br />3. WTA restoration plaster</p> <p>1.</p> <p>Source: WTA data sheets 2–9 (restoration plaster systems)</p> <p>14</p> <p>2.</p> <p>If the masonry work is saturated with moisture, <br />suitable waterproofing or drying measures are <br />required beforehand.</p> <p>Task</p> <p>Degree of <br />salting</p> <p>Possible backing coat</p> <p>application</p> <p>R estoration plasters may be subjected to hydrostatic <br />pressure (pressing and standing water). They are for <br />internal use or, if necessary, external use and then <br />only above ground level.</p> <p>The system components</p> <p>Measures according to the degree <br />of salt accumulation</p> <p>1.</p> <p>Experten-Advice</p> <p>R estoration plaster <br />application</p> <p>2.</p> <p>· Highly water vapour permeable</p> <p>15</p> <p>Building restoration | THERMOPAL® -renovation plaster system</p> <p>THERMOPAL®-RENOVATION PLASTER <br />SYSTEM <br />PROTECTION FOR PLINTHS <br />AND CELLARS <br />There are various systems available <br />that ensure the walls of older buildings <br />remain dry.</p> <p>Old buildings are beautiful. Everybody would really like to live in one. <br />What is easily overlooked: the art nouveau houses of the turn of the century <br />are often hardly or not at all waterproofed against rising damp. Above all, the <br />soaked walls of building components in the ground can lead to severe <br />damage. The good news: there are various restoration systems, which provide <br />dry walls in old buildings. For every requirement SCHOMBURG has the right <br />solution, so that the with stucco decorated gems will stand on secure <br />foundations in future as well.</p> <p>The basic restoration plaster system <br />Page 18</p> <p>The rapid daily system <br />Page 20</p> <p>The flexible restoration system with radon protection <br />Page 22</p> <p>The traditional restoration system <br />Page 24</p> <p>The restoration system with insulating <br />effect <br />Page 26</p> <p>The restoration plaster system without <br />the need for additional waterproofing <br />measures <br />Page 28</p> <p>The soil restoration system <br />Page 30 <br />16</p> <p>17</p> <p>Building restoration | The basic restoration plaster system</p> <p>Products</p> <p>The basic restoration plaster system <br />for masonry without additional <br />waterproofing</p> <p>THERMOPAL® -ULTRA-white</p> <p>WTA Rapid Renovation Plaster <br />• White renovation plaster finish, ready for immediate use <br />• Climate-regulating <br />• High coverage <br />• Reactive curing under critical site conditions</p> <p>AQUAFIN®-i380</p> <p>Injection cream for retrofitting a horizontal damp proof course to prevent <br />capillary rising damp <br />• Ready to use <br />• High penetration depth <br />• Easy and safe to use <br />• Can be applied without pressure</p> <p>THERMOPAL® -SP</p> <p>WTA Restoration Spray Mortar <br />• Mineral-based ready-mixed dry mortar <br />• For interior and exterior use <br />• Low consumption per unit area <br />• Permeable to water vapour</p> <p>ESCO-FLUAT <br />AQUAFIN-i380</p> <p>1. <br /> <br /> <br /> </p> <p>THERMOPAL-ULTRA-white <br />THERMOPAL-SP</p> <p> </p> <p>Subsurface preparation <br />1. R emove the plaster from at least 80 cm beyond the damaged area. <br />2. Scrape crumbly and salt loaded joints out to at least 20 mm deep. <br />3. Use ESCO-FLUAT to convert sulphate and chloride salts from salts that dissolve easily to salts that are difficult <br />to dissolve. <br />4. U <br /> se THERMOPAL® -GP11 to compensate for joints and voids.</p> <p>2. <br /> <br /> </p> <p>Horizontal barrier <br />1. U <br /> se AQUAFIN® -i380 or AQUAFIN-F to create a retroactive horizontal barrier. <br />2. Use ASOCRET-M30 to seal the drilled holes again.</p> <p>3. <br /> </p> <p>Restoration plaster system <br />1. F or improved adhesion, apply the THERMOPAL® -SP splatterdash coat as a semi-covering to the load-bearing <br />substrate. <br />2. If required (e.g. high salt loading and large surface irregularities), apply the THERMOPAL® -GP11 base plaster <br />as an intermediate layer. Roughen up the surface horizontally for the subsequent restoration plaster. <br />3. Use the THERMOPAL® -ULTRA-white restoration plaster to plaster the wall surfaces. <br />4. THERMOPAL® -FS33 can be applied as a finish if fine plaster is required.</p> <p> <br /> <br /> </p> <p>18</p> <p>ESCO-FLUAT</p> <p>Solution for treating salts that are harmful to buildings <br />• Concentrate <br />• Solvent-free <br />• Prevents premature salt penetration into fresh restoration plaster <br />• Colourless</p> <p>OTHER PRODUCTS IN THE SYSTEM <br />• THERMOPAL® -GP11 WTA base coat <br />• THERMOPAL® -FS33 fine-finish filler for THERMOPAL® renovation plasters</p> <p>i <br />Further information about the products <br />can be found online. <br />19</p> <p>Building restoration | The rapid daily system</p> <p>Products</p> <p>The daily system for fast restoration <br />work in one day</p> <p>THERMOPAL® -ULTRA-white</p> <p>WTA rapid-setting restoration plaster <br />• White restoration plaster surface, usable directly <br />• Climate-regulating <br />• High yield <br />• Reactive full curing in the event of critical site conditions</p> <p>AQUAFIN® -i380</p> <p>Injection cream for the retroactive horizontal barrier <br />to prevent capillary rising damp <br />• Ready to use <br />• High penetration depth <br />• Easy and safe to use <br />• Application without any pressure</p> <p>ASOCRET-M30</p> <p>Water-repellent multi-mortar up to 30 mm for levelling <br />and interior wall waterproofing <br />• Rapid setting <br />• Sulphate resistant <br />• Very smooth application</p> <p>ASOCRET-M30 <br />AQUAFIN-Primer <br />AQUAFIN-i380</p> <p>1. <br /> <br /> <br /> </p> <p>THERMOPAL-ULTRA-white</p> <p> </p> <p>Subsurface preparation <br />1. R emove the plaster from at least 80 cm beyond the damaged area. <br />2. Scrape crumbly and salt loaded joints out to at least 20 mm deep. <br />3. Use ESCO-FLUAT to convert sulphate and chloride salts from salts that <br />dissolve easily to salts that are difficult to dissolve. <br />4. U <br /> se ASOCRET-M30 to compensate for joints and voids. <br />5. U <br /> se ASOCRET-M30 to insulate the existing horizontal barrier and locking <br />groove in the wall-floor transition. <br />6. Use ASOCRET-M30 to implement a sealing groove in the floor-wall transition.</p> <p>2. <br /> <br /> </p> <p>Horizontal barrier <br />1. U <br /> se AQUAFIN ® -i380 to create a retroactive horizontal barrier. <br />2. Use ASOCRET-M30 to seal the drilled holes again.</p> <p>3. <br /> <br /> </p> <p>Interior waterproofing <br />1. A <br /> pply ASOCRET-M30 as a barrier plaster layer and for surface levelling. <br />2. Comb the layer that is still fresh horizontally using a 6 mm notched trowel.</p> <p>4. <br /> </p> <p>Restoration plaster system <br />1. U <br /> se the THERMOPAL® -ULTRA-white restoration plaster to plaster the wall <br />surfaces.</p> <p> <br /> </p> <p>20</p> <p>ESCO-FLUAT</p> <p>Solution for treating structurally damaging salts <br />• Concentrate <br />• To convert structurally damaging salts <br />• To prevent too early a salt effect in fresh restoration plaster <br />• Solvent-free</p> <p>i <br />Further information to the products <br />can be found online.</p> <p>21</p> <p>Building restoration | The flexible restoration system with radon protection</p> <p>Products</p> <p>The flexible restoration system with <br />radon protection</p> <p>THERMOPAL® -ULTRA</p> <p>WTA rapid-setting restoration plaster <br />• Rapid, reactive hardening <br />• High volume of entrained air <br />• Up to 30 mm in one application step <br />• Sulphate resistant</p> <p>THERMOPAL® -FS33</p> <p>Fine mortar for THERMOPAL restoration plasters <br />• Cementitious fine plaster <br />• Vapour permeable <br />• Low-stress <br />• For interior and exterior use</p> <p>AQUAFIN® -RB400</p> <p>Rapid cementitious waterproofing for substrates <br />at risk of cracking with radon protection <br />• Rapid, reactive drying <br />• Crack bridging <br />• Vapour permeable <br />• Radon-tight</p> <p>THERMOPAL-ULTRA <br />THERMOPAL-SP <br />AQUAFIN-RB400 <br />ASOCRET-M30 <br />ESCO-FLUAT <br />AQUAFIN-i380</p> <p>1. <br /> <br /> <br /> <br /> <br /> <br /> </p> <p>Subsurface preparation <br />1. R emove the plaster from at least 80 cm beyond the damaged area. <br />2. Scrape crumbly and salt loaded joints out to at least 20 mm deep. <br />3. Use ESCO-FLUAT to convert sulphate and chloride salts from salts that <br />dissolve easily to salts that are difficult to dissolve. <br />4. U <br /> se ASOCRET-M30 to compensate for joints and voids. <br />5. U <br /> se ASOCRET-M30 to insulate the existing horizontal barrier and locking <br />groove in the wall-floor transition. <br />6. Use ASOCRET-M30 to implement a sealing groove in the floor-wall <br />transition.</p> <p>2. <br /> <br /> </p> <p>Horizontal barrier <br />1. U <br /> se AQUAFIN-i380 to create a retroactive horizontal barrier. <br />2. Use ASOCRET-M30 to seal the drilled holes again.</p> <p>3. <br /> <br /> </p> <p>Flexible interior waterproofing <br />1. A <br /> pply ASOCRET-M30 as a barrier plaster layer and for surface levelling. <br />2. Apply AQUAFIN-RB400 as flexible interior waterproofing.</p> <p>4. <br /> </p> <p>Restoration plaster system <br />1. F or improved adhesion, apply the THERMOPAL-SP splatterdash coat over <br />the complete area. <br />2. Use the THERMOPAL-ULTRA restoration plaster to plaster the wall surfaces. <br />3. THERMOPAL-FS33 can be applied as a finish if fine plaster is required.</p> <p> <br /> </p> <p>22</p> <p>AQUAFIN® -i380</p> <p>Radon protection <br />Protection of the floor slab: <br />For additional protection against radon, the <br />floor slab can be waterproofed in a <br />tray-shaped manner using AQUAFIN-RB400 <br />beneath the screed, ensuring that any cracks <br />are bridged. For direct wear layers, we <br />recommend our THERMOPAL floor renovation <br />system to protect against moisture and radon <br />penetration from below. You can find out how <br />to safely renovate critical and cracked floor <br />surfaces in our brochure on the THERMOPAL <br />floor renovation system.</p> <p>Injection cream for the retroactive horizontal <br />barrier to prevent capillary rising damp <br />• Ready to use <br />• High penetration depth <br />• Easy and safe to use <br />• Application without any pressure</p> <p>ASOCRET-M30</p> <p>Water-repellent multi-mortar up to 30 mm for levelling <br />and interior wall waterproofing <br />• Rapid setting <br />• Sulphate resistant <br />• Very smooth application</p> <p>Further system products: <br />• THERMOPAL® -SP WTA preparatory renovating sprayed mortar <br />• THERMOPAL® -GP11 WTA base plaster <br />• ESCO-FLUAT Solution for treating structurally damaging salts</p> <p>YouTube Video: <br />THERMOPAL® Soil restoration system</p> <p>23</p> <p>Building restoration | The traditional restoration system</p> <p>Products</p> <p>The traditional restoration system</p> <p>THERMOPAL® -SR24</p> <p>WTA restoration plaster with high air pore content <br />• Manual and mechanical application <br />• High salt storage capacity <br />• Vapour permeable, supports drying <br />• Wide range, high area coverage</p> <p>THERMOPAL® -FS33</p> <p>Fine mortar for THERMOPAL restoration plasters <br />• Cementitious fine plaster <br />• Vapour permeable <br />• Low-stress <br />• For interior and exterior use</p> <p>AQUAFIN® -1K</p> <p>THERMOPAL-SR24 <br />THERMOPAL-SP <br />AQUAFIN-1K <br />ASOCRET-M30 <br />ESCO-FLUAT <br />AQUAFIN-F</p> <p>1. <br /> <br /> <br /> </p> <p> </p> <p>Subsurface preparation <br />1. R emove the plaster from at least 80 cm beyond the damaged area. <br />2. Scrape crumbly and salt loaded joints out to at least 20 mm deep. <br />3. Use ESCO-FLUAT to convert sulphate and chloride salts from salts that dissolve easily to salts that <br />are difficult to dissolve. <br />4. U <br /> se ASOCRET-M30 to compensate for joints and voids. <br />5. U <br /> se ASOCRET-M30 to insulate the existing horizontal barrier and locking groove in the wall-floor <br />transition. <br />6. Use ASOCRET-M30 to implement a sealing groove in the floor-wall transition.</p> <p>2. <br /> <br /> </p> <p>Horizontal barrier <br />1. U <br /> se AQUAFIN-F to create a retroactive horizontal barrier. <br />2. Use ASOCRET-M30 to seal the drilled holes again.</p> <p>3. <br /> </p> <p>Interior waterproofing <br />1. A <br /> pply AQUAFIN-1K as retroactive interior waterproofing with this one component cementitious <br />waterproofing slurry. Three layers in the event of pressure water.</p> <p>4. <br /> <br /> <br /> </p> <p>Restoration plaster system <br />1. F or improved adhesion, apply the THERMOPAL-SP splatterdash coat over the complete area. <br />2. Use the THERMOPAL-SR24 restoration plaster to plaster the wall surfaces. <br />3. THERMOPAL-FS33 can be applied as a finish if fine plaster is required.</p> <p> <br /> </p> <p>24</p> <p>Mineral waterproofing slurries for retroactive waterproofing <br />of substrates that are not at risk of cracking <br />• Sulphate resistant <br />• Water tight <br />• Easy, economic application <br />• Adheres to matt damp substrates without primers</p> <p>AQUAFIN® -F</p> <p>To create retroactive horizontal barriers if damp <br />increases in the walls <br />• Ready to use <br />• Up to 95 % moisture penetration in the pressure process <br />• Vapour permeable <br />• Solvent-free</p> <p>ASOCRET-M30</p> <p>Water-repellent multi-mortar up to 30 mm for levelling <br />and interior wall waterproofing <br />• Rapid setting <br />• Sulphate resistant <br />• Very smooth application</p> <p>Further system products: <br />• THERMOPAL® -SP WTA preparatory renovating sprayed mortar <br />• THERMOPAL® -GP11 WTA base plaster <br />• ESCO-FLUAT Solution for treating structurally damaging salts</p> <p>25</p> <p>Building restoration | The restoration system with insulating effect</p> <p>Products</p> <p>The restoration system with insulating <br />effect for areas affected by damp</p> <p>THERMOPAL® -WSP-120</p> <p>Cementitious thermal insulation and restoration plaster <br />• thermal insulating properties <br />• humidity regulating <br />• for layer thicknesses up to 120 mm <br />• machine-accessible</p> <p>ASOCRET-M30</p> <p>Water-repellent multi-mortar up to 30 mm for levelling <br />and interior wall waterproofing <br />• rapid setting <br />• sulphate resistant <br />• very smooth application</p> <p>AQUAFIN® -i380</p> <p>Injection cream for the retroactive horizontal barrier <br />to prevent capillary rising damp <br />• ready to use <br />• high penetration depth <br />• simple and reliable application <br />• pressure-free application</p> <p>THERMOPAL® -FS33</p> <p>1. <br /> <br /> <br /> <br /> <br /> <br /> </p> <p>Substrate preparation <br />1. R emove the plaster from at least 80 cm beyond the damaged area. <br />2. Scrape crumbly and salt loaded joints out to at least 20 mm deep. <br />3. Pretreat damp masonry work with AQUAFIN-Primer. <br />4. U <br /> se ASOCRET-M30 to compensate for joints and voids. <br />5. Use ASOCRET-M30 to insulate the existing horizontal barrier and locking groove in the wall-floor transition. <br />6. Create cementitious fillet at floor/wall transition with ASOCRET-M30.</p> <p>2. <br /> <br /> </p> <p>Horizontal barrier <br />1. U <br /> se AQUAFIN-i380 to create a retroactive horizontal barrier. <br />2. Use ASOCRET-M30 to seal the drilled holes again.</p> <p>3. <br /> <br /> </p> <p>Interior waterproofing <br />1. A <br /> pply ASOCRET-M30 as a barrier plaster layer and for surface levelling. <br />2. Comb the layer that is still fresh horizontally using a 6 mm notched trowel.</p> <p>4. <br /> <br /> </p> <p>Salt trap as an intermediate layer if needed <br />1. Apply the plaster coat with THERMOPAL-ULTRA-white in a layer thickness of approx. 15 mm. <br />2. Comb the layer that is still fresh horizontally using a 6 mm notched trowel.</p> <p>5. <br /> <br /> <br /> </p> <p>Thermal insulation plaster <br />1. Plaster the wall surfaces with THERMOPAL-WSP-120 <br />2. After drying, prime the plaster surface with AQUAFIN primer. <br />3. Then, rework the plaster surface with the THERMOPAL-FS33 fine filler in two application steps.</p> <p>26</p> <p>Fine mortar for THERMOPAL restoration plasters <br />• cementitious fine plaster <br />• vapour permeable <br />• low stress <br />• for interior and exterior use</p> <p>AQUAFIN® -Primer</p> <p>Dependable primer for building waterproofing and renovation <br />• dispersion silicate primer with improved adhesion properties <br />• ready to use <br />• rapid drying <br />• substrate consolidating</p> <p>Further system products: <br />• THERMOPAL® -SP WTA preparatory renovating sprayed mortar <br />• THERMOPAL® -GP11 WTA base plaster <br />• ESCO-FLUAT Solution for treating structurally damaging salts</p> <p>27</p> <p>Building restoration | The restoration system without additional measures</p> <p>Products</p> <p>The restoration system without <br />additional waterproofing measures</p> <p>THERMOPAL® -WSP-120</p> <p>Cementitious thermal insulation and restoration plaster <br />• thermal insulating properties <br />• humidity regulating <br />• for layer thicknesses up to 120 mm <br />• machine-accessible</p> <p>THERMOPAL® -FS33</p> <p>Fine mortar for THERMOPAL restoration plasters <br />• cementitious fine plaster <br />• vapour permeable <br />• low stress <br />• for interior and exterior use</p> <p>AQUAFIN® -i380</p> <p>Injection cream for the retroactive horizontal barrier <br />to prevent capillary rising damp <br />• ready to use <br />• high penetration depth <br />• simple and reliable application <br />• pressure-free application</p> <p>AQUAFIN-Primer</p> <p>Dependable primer for building waterproofing and renovation <br />• dispersion silicate primer with improved adhesion properties <br />• ready to use <br />• rapid drying <br />• substrate consolidating</p> <p>1. <br /> <br /> <br /> <br /> </p> <p>Substrate preparation <br />1. C <br /> ompletely remove the old plaster. <br />2. Scrape crumbly and salt loaded joints out to at least 20 mm deep. <br />3. Prime highly absorbent masonry work with AQUAFIN-Primer. <br />4. U <br /> se THERMOPAL-GP11 to compensate for joints and voids.</p> <p>2. <br /> <br /> </p> <p>Horizontal barrier if required <br />1. U <br /> se AQUAFIN-i380 or AQUAFIN-F to create a retroactive horizontal barrier. <br />2. Use ASOCRET-M30 to seal the drilled holes again.</p> <p>3. <br /> <br /> <br /> <br /> </p> <p>Thermal insulation plaster <br />1. F or improved adhesion, apply the THERMOPAL-SP splatterdash coat as a semi-covering to the load-bearing substrate. <br />2. Plaster the wall surfaces with THERMOPAL-WSP-120. <br />3. After drying, prime the plaster surface with AQUAFIN primer. <br />4. T hen, rework the surface with the THERMOPAL-FS33 fine filler in two application steps.</p> <p>28</p> <p>ASOCRET-M30</p> <p>Water-repellent multi-mortar up to 30 mm for levelling <br />and interior wall waterproofing <br />• rapid setting <br />• sulphate resistant <br />• very smooth application</p> <p>Further system products: <br />• THERMOPAL-SP WTA preparatory renovating sprayed mortar <br />• THERMOPAL-GP11 WTA base plaster <br />• ESCO-FLUAT Solution for treating structurally damaging salts</p> <p>29</p> <p>Building restoration | The soil restoration system</p> <p>Products</p> <p>The soil restoration system</p> <p>ASO® -RSG</p> <p>Crack prevention fabric for the repair of critical and cracked surfaces</p> <p>The THERMOPAL® - floor restoration system enables the quick and <br />straightforward restoration of moisture-damaged and cracked <br />substrates with low load-bearing capacity.</p> <p>• Crack-bridging <br />• Stabilising <br />• High tear resistance <br />• Easy to apply</p> <p>ASODUR® -SG3-thix</p> <p>Epoxy resin barrier primer for damp substrates, thixotropic <br />• Solvent-free <br />• Moisture-tolerant and vapour-impermeable <br />• Adheres very well to damp substrates <br />• Watertight against negative water pressure up to 3 bar</p> <p>ASOCRET-HFF</p> <p>Mineral-based industrial flooring for areas subject to heavy mechanical wear <br />• Fast-curing and can bear loads at an early stage <br />• Highly resistant to wear and abrasion caused by air, <br />solid rubber and Vulkolan tyres <br />• Permeable to vapour <br />• Resistant to chloride and CO²</p> <p>1.</p> <p>2.</p> <p>3.</p> <p>RD-SK 50</p> <p>Self-adhesive edge insulation strip <br />• With adhesive backing <br />• 5 mm thick <br />• Effective protection against sound transmission <br />• Prevents clamping and sound bridges</p> <p>1. <br />2.</p> <p>ASO-RSG</p> <p>Crack <br />prevention fabric <br /> SODUR-SG3-thix + <br />A <br />Quartz sand sanding <br />Epoxy resin barrier primer <br />for damp substrates <br />ASOCRET-HFF</p> <p>3. Cementitious industrial flooring <br />for mechanically exposed areas</p> <p>i <br />30</p> <p>Floor surfaces with cracks, limited load bearing <br />capacity and rising damp present a particular <br />challenge during renovation, requiring targeted <br />measures. <br />The THERMOPAL® - floor renovation system offers an <br />effective solution to this problem, as it both stabilises <br />the subfloor and protects against moisture rising from <br />the subfloor.</p> <p>Remediate contaminated soil efficiently <br />and effectively, saving time.</p> <p>i <br />Further information on the products and the soil <br />remediation system can be found online. <br />31</p> <p>Glossary <br />Accompanying <br />The actual cause of moisture penetration <br />of the masonry work is to be clarified and <br />eliminated. Horizontal and vertical <br />waterproof membranes are used. <br />Air pockets <br />The efficiency of a restoration plaster is <br />dependent on the size of the pores, their <br />distribution and their shape. Air pockets <br />belong to the largest pores in the <br />restoration plaster’s profile. They act as <br />capillary breaks and offer room for <br />potential salt storage. <br />Building condition analysis <br />In order to be able to evaluate the <br />building structure and to reveal the cause <br />of damage, preliminary investigations into <br />the building are necessary. In the <br />foreground is the determination of e.g. the <br />salts content (differentiated based on type <br />of salt), the moisture content, the maximum <br />water absorption and the hygroscopic <br />water absorption. Only when these results <br />are available, can a restoration system be <br />selected. <br />Capillarity <br />This is understood to mean the absorption <br />(rising) of water (liquids) in the capillaries <br />of building materials. <br />Capillary condensation <br />Capillary condensation occurs below the <br />saturation conditions with very finely <br />pored building materials e.g. concrete, <br />waterproofing slurries etc. The gives to <br />rise to condensation with a relative <br />humidity, which is considerably below <br />100%. <br />Compress render <br />A compress render serves to reduce the <br />salt content in the surface area of the <br />masonry. The application is a temporary <br />measure. As soon as enrichment of salts in <br />the render ceases, it must be renewed or <br />finished with e.g. a restoration plaster. <br />Compress renders are designed to be <br />capillary active and hydrophilic. <br />Crystallisation damage <br />Crystallisation damage is generated <br />during crystallisation and the volume</p> <p>32</p> <p>increase behind dense renders e.g. <br />cement-based renders. Here pressure is <br />generated, which with frequent changes <br />from dissolution and crystallisation <br />processes leads to damage in the <br />building material and leads to spalling/ <br />delamination. <br />Degree of moisture penetration <br />(DFG) <br />The degree of moisture penetration of a <br />building material is described via the ratio <br />of moisture content to saturation moisture <br />content. DFG (%) = moisture content/ <br />saturation moisture content. <br />Degree of salting <br />The degree of salting is a measure for the <br />concentration of salts in the contaminated <br />building material. This must be determined <br />by a laboratory analysis. <br />Desalination <br />Desalination of masonry work in the sense <br />of the complete removal of salts is <br />practically not feasible. A reduction of the <br />salt content at the area close to the <br />surface is pursued. For this purpose, <br />sacrificial renders or compresses are used <br />for example. <br />Dew point, dew point <br />temperature <br />The temperature at which the humidity <br />reaches saturation (100%) through <br />cooling. If this dew point temperature is <br />fallen below, then moisture drops out of <br />the air (condensation, condensation <br />water). <br />Diffusion <br />Diffusion is understood to mean the <br />migration of gaseous materials through <br />solid materials. <br />Equilibrium moisture content <br />(sorption moisture) <br />The moisture content of building materials <br />dependent on the relative humidity in the <br />area applied. <br />Horizontal barrier <br />Horizontal barriers prevent capillary rising <br />damp in building materials with <br />conductive capillaries (brickwork, natural</p> <p>stone, joint mortar etc.). <br />Hydrophilic <br />“Water loving”– when materials e.g. <br />building materials strongly interact with <br />water. The opposite of hydrophobic. <br />Hydrophobic <br />Building materials and surfaces which <br />repel water or damp are designated as <br />hydrophobic. <br />Hygroscopic salts <br />Hygroscopic salts draw water out of the <br />surrounding air and bind it. Salt laden <br />building materials can accept particularly <br />high levels of hygroscopic moisture. <br />Moisture regulating layer <br />The moisture regulating layer stores <br />condensation water momentarily and <br />reduces the capillary condensation in the <br />pore matrix of the top layer. Restoration <br />plasters are used. <br />Negative waterproofing <br />Negative waterproofing (internal cellar <br />waterproofing) deals with vertical <br />waterproofing to building components <br />within the ground on the interior side of <br />the wall. Additional capillary rising damp <br />must be prevented by incorporating a <br />horizontal barrier above the ground <br />contact area. The wall constituents are <br />accepted as a damp area. <br />Pore volume <br />It is understood that pore volume (PV) <br />means the portion of the pores in the total <br />volume of the building material. Example: <br />PV = 20% means 200 I pores in 1 m3 <br />building material, i.e. the maximum liquid <br />absorption is 200 l. <br />Preliminary investigation <br />See building condition analysis. <br />Relative humidity <br />The relative humidity is the ratio of the <br />prevailing water content in the air to the <br />saturation moisture content. The saturation <br />moisture content of the air and therefore <br />also the relative humidity are temperature <br />dependent.</p> <p>Restoration plaster-WTA <br />Restoration plasters to WTA are produced <br />from factory blended mortars in <br />accordance with DIN EN 998-1 and fulfil <br />the requirements of the data sheet <br />2-9-04/D “Restoration plaster systems”. <br />They are plasters with high porosity and <br />permeability to water vapour, whilst <br />extensively preventing capillary <br />conductivity. To restoration plaster systems <br />also belong splatterdash coats, WTA <br />base coats and WTA restoration plasters. <br />Sacrificial render <br />See compress render <br />Salts detrimental to buildings <br />Salts detrimental to buildings such as <br />nitrates, chlorides and sulphates are <br />mobile readily soluble salts and can lead <br />to the appearance of corrosion on <br />building materials. The more mobile they <br />are, the more damaging they are to the <br />masonry work with which they make <br />contact. Readily soluble chlorides and <br />sulphates can be converted to scarcely <br />soluble salts through the addition of <br />particular chemicals. <br />Saturation moisture content <br />The saturation moisture content is the <br />maximum moisture, which a building <br />material can absorb at a given <br />temperature. <br />sd-value <br />The equivalent air layer thickness (sd) <br />indicates how thick a stationary air layer <br />must be in order to have the same <br />diffusion resistance as the contemplated <br />material layer. sd = thickness (s) x water <br />vapour resistance factor (μ). <br />Sorption moisture content <br />See equilibrium moisture content. <br />Waterproofing <br />· Vertical waterproofing <br />It is understood that vertical <br />waterproofing means the planar <br />waterproofing of building components <br />in contact with the ground. <br />· Horizontal waterproofing <br />It is understood that horizontal <br />waterproofing means the insertion of a <br />barrier to protect against capillary <br />water transportation.</p> <p>33</p> <p>Notes</p> <p>Notes</p> <p>The SCHOMBURG Group develops, produces <br />and distributes building product systems for the <br />areas of:</p> <p>Experts value the quality and the efficiency of <br />building product systems, the services and <br />therefore the core competence of the group of <br />companies. <br />To meet the demanding requirements of an <br />ever-changing market, we continuously invest in <br />the research and development of new and <br />already existing products. This guarantees an <br />ever increasing product quality to the <br />satisfaction of our customers.</p> <p>SCHOMBURG GmbH <br />Aquafinstraße 2–8 <br />D-32760 Detmold (Germany) <br />Telephone +49-5231-953-00 <br />Fax <br />+49-5231-953-333 <br />www.schomburg.com</p> <p>15/26 NT/JoZ</p> <p>For over 85 years SCHOMBURG’s <br />development competence has been recognised <br />in both the domestic and the worldwide <br />marketplace. Building product systems that are <br />produced in-house are highly prized around the <br />world.</p> <p>T: 15/26 NT/JoZ Subject to change without prior notification. The valid issue of the corresponding technical bulletin legally applies.06</p> <p>• Waterproofing and repair of buildings <br />• Tiles/natural stone/screed application <br />• Ground protection/floor coating systems</p>
