Project Info Redevelopment after flooding or water damage

Transcription

1 Project Info Redevelopment after flooding or water damage Repair with FOAMGLAS anti-flood insulation Photo: Thomas Panzau, Hamburg

2 Flood in Görlitz, Germany. Photo dpa Deutsche Presse-Agentur. Proper building material selection Extreme rainfall and thawing snow regularly lead to floods and high groundwater levels resulting in substantial damage to property. Damage analyses prove that with anti-flood construction methods damage to buildings remains limited. FOAMGLAS anti-flood technology offers security to protect the building fabric against the ingress of water and moisture. Water in buildings: Effects on building materials The correct building material selection makes a decisive contribution to limiting flood damage. If there is a danger of flooding penetrating into a building, the use of water-resis - tant construction materials is preferred. Materials that are damaged by contact with water should be avoided. This applies for many timber materials, textiles, carpets, gypsum plasterboards or plasterwork and other absorbent materials, such as insulation materials, which are not as moisture and water proof as FOAMGLAS. Problem areas are, for example, boiler rooms where leaked fuel oils or other stored products can also affect the insulation. Security with FOAMGLAS insulation technology FOAMGLAS wall and floor systems for repairs after flood or water damage have proven themselves through the full Boiler room under water. 2 Industrial activity, water damage. Damaged floor insulation. If the insulation under the screed (sub-flooring) gets wet, dangerous microbes and putrid gases develop. In this case the whole floor construction has to be removed. 2

3 surface bonding of all components. With a compact bonded floor structure with FOAMGLAS insulation and a mastic asphalt underlay, the construction remains dry from below as well as from above. Cellular glass insulation therefore keeps the repair costs low. Often only cleaning and painting are enough, without time-consuming and costly dismantling work. FOAMGLAS product characteristics Its special technical characteristics make FOAMGLAS insulation materials ideal for the repair of flood damage. The material structure of FOAMGLAS is pure glass with a closed cell structure. Water retention due to liquid water contamination, diffusion processes and air flows do not occur with FOAMGLAS. Experience with flood damage led to the realization that not only silt, but also a large number of dissolved salts and foulsmelling impurities are washed up, which penetrate into conventional insulation materials. During the drying phase, this is evident from decomposition, a bad smell and surface discoloration. Oil from heating tanks often worsens the situation. FOAMGLAS is an inorganic material whose resistance to contaminated soil and water is guaranteed. The resistance of the insulation material to salts, fuel oils and chemicals has proven their ability to limit damage in cases of hardship. Pressure-resistant FOAMGLAS floor insulation is ideally suited for demanding applications and changes of use in interiors. The compressive strength of the product, creep and deformation-free behaviour offer a guarantee for stable installation conditions for mastic asphalt and cement screed floor coverings. FOAMGLAS with natureplus quality seal is a healthy, durable insulation material for interior and exterior applications and recommended for environmental sustainable architecture. All of the thermal, hygiene and bacteriological requirements for indoor climates can be fulfilled with cellular glass insulation materials. 1 Waterproof FOAMGLAS is waterproof because it consists of closed cell cellular glass. 2 Pest-proof FOAMGLAS is rot proof and pest-proof because it is inorganic. Compression-proof FOAMGLAS has high compressive strength due to its deforma tionfree and pressure resistant glass structure, even under sustained loading. 4 Incombustible FOAMGLAS is incombustible because it consists of pure glass. Fire behaviour: Construction material classification in accor - dance with EN 1501: A1. 5 Vapour-tight FOAMGLAS is vapour-tight because it consists of hermetically sealed glass cells. Dimensionally stable FOAMGLAS is dimensionally stable because glass neither shrinks nor swells. 7 Acid resistant FOAMGLAS is resistant to organic solvents and acids because it consists of pure glass. 8 Easy to work with FOAMGLAS is easy to work with because it consists of thin-walled glass cells. 9 Ecological FOAMGLAS is free of environ - mentally damaging flame retardants, propellant gases and consists of more than 0% highquality recycled glass. Only renewable electricity is used for production. The insulation material meets the highest standards for environmental and health protection. The natureplus quality seal bears the life cycle assessment certificate according to the internationally approved standard for ecological construction products

4 Construction systems.1.5 Repair of buildings after flooding Best practices for the repair of buildings after flooding are described for four FOAMGLAS systems: FOAMGLAS floor insulation: Compact floor system with mastic asphalt screed (system.1.5) FOAMGLAS floor insulation: Boards with cement screed (system.1.) FOAMGLAS interior insulation with mineral mortar (system.2.1) FOAMGLAS wall insulation with a thick coat of mineral render Wall systems.2.8 Facade systems Base systems FOAMGLAS advantages: vapour-tight waterproof gas-tight rot-resistant FOAMGLAS with mastic asphalt screed The FOAMGLAS compact floor system is especially suitable as thermal insulation under mastic asphalt. Mastic asphalt screeds do not contain water or absorb water. They are installed at a processing temperature of about 200 C and unlike water bound screeds do not add any additional construction moisture. The day after installation of the mastic asphalt, floor finishes such as tiles can be laid. Using mastic asphalt on FOAMGLAS the reoccupation of damaged houses is noticeably accelerated. FOAMGLAS and mastic asphalt can be installed in combination with under-floor heating. Sanded or polished mastic asphalt screeds offer a particularly noble, terrazzo-like appearance. They are robust and durable.. Installation method With the FOAMGLAS compact system.1.5 the insulation slabs are fully bonded with filled joints to the concrete deck. FOAMGLAS provides the deformation-free underlay for the final floor finish (thermoplastic). On concrete decks in interior areas, FOAMGLAS insulation slabs are laid in a staggered pattern with hot bitumen on the primed construction surface. By pushing the insulation slabs diagonally into position and using a cell-filling top coat, a permanently diffusion-proof insulation layer is created. Next is then laid a separation layer, normally two layers of building paper, on which the mastic asphalt screed is laid manually. FOAMGLAS insulation creates an impervious barrier, which totally isolates moisture content from the soil and construction moisture System.1.5 with mastic asphalt screed 1 Concrete slab 2 Primer coat FOAMGLAS slabs, laid in hot bitumen 4 Top coat of hot bitumen 5 Separating layer (heat resistant) Mastic asphalt screed, sanded and polished 7 Flooring, if necessary 4

5 Floor insulation.1. FOAMGLAS BOARD with cement screed Old buildings close to rivers are often affected by flooding, which require reconstruction of the floor on the existing ground. Here, using a dry construction method, FOAMGLAS boards can be loosely laid in a sand bed. Cement screeds are laid on a separation and slip layer on top of the creep- and deformation-free FOAMGLAS insulation. Sufficient time must be given for the cement screed to dry out in order to avoid warping and edge settling. The drying must not be obstructed by laying the diffusion-proof floor covering too early. Exposed screeds are floors in their most natural form. They are polished with diamond technology, polished and coloured if necessary and their usability is in no way inferior to conventional floor coverings. They are suitable for people with allergies and do not contain solvents or plastics. Installation method In the system.1., FOAMGLAS FLOOR BOARDS are laid either on a concrete slab with fine levelling sand or dry on the sand bed. The large-size boards are laid quickly with butt-pressed joints. A 0.2 mm thick polyethylene foil is laid on top of the boards and then a cement screed with stress reinforcement is laid. The cement surface is smoothed with a power float. The structurally high compressive strength of cellular glass insulation enables a thin screed construction. Technical promises of the system: vapour-tight waterproof gas-tight rot-resistant Technical datasheets Worksheets are available for all systems suitable for flood repair, which can be obtained from our technical advisers or a selection can be found via our homepage System.1. with cement screed 1 Concrete slab 2 Levelling layer (e. g. sand) FOAMGLAS FLOOR BOARD 4 Separating layer (underlay) 5 Cement screed (polished) Flooring, if necessary Other flooring systems FOAMGLAS insulation with screed and tiled flooring FOAMGLAS insulation on concrete for double floors (raised access flooring) 5

6 Interior fittings.2.1 Wall and ceiling systems with FOAMGLAS slabs and roughcast render (thin bed) Repairs after flooding take a lot of time. Flooded rooms must be pumped out and dried. Badly damaged wall and ceiling coverings have to be replaced. Often sound wall components are to be mounted on surfaces affected by fungus, containing residual moisture or salt efflorescence, and, nevertheless, best guarantees for a successful reconstruction should be provided. A newly installed, glued FOAMGLAS interior insulation seals off water-soluble construction salts and spore contamination and creates a healthy living environment. With leaks in the masonry joints, the vapour proof insulation system offers additional protection against damp. An energy upgrade with FOAMGLAS saves energy and removes cold wall surfaces and / or cold bridges, where condensation problems occur. FOAMGLAS slabs are airtight and form the stable, secure subconstruction for mineral plaster, lime rendering, finishing plaster and tiling for wall and ceiling applications. The FOAMGLAS system with thin bed plaster is the ideal custom solution for living and working areas, for administrative and industrial buildings, for new construction and redevelopment. Installation method For the system.2.1 the dimensionally stable, rear faces of the rigid FOAMGLAS insulation slabs are fully bonded to the wall. For dust binding and adhesion improvement a primer is applied to the wall with a brush or roller first (f.i. PC EM liquid bitumen emulsion). PC 5 cold adhesive is applied with a toothed trowel (tooth depth 8-10 mm) to 2 contact edges and the rear side of the slabs. The insulation slabs are pushed together diagonally on the wall and bonded. After curing, the surplus adhesive is removed with the trowel. A concealed fastening of the insulation slabs should be made for walls over 2.50 m and in principle for ceilings using PC F anchors. After removing any unevenness on the insulation surface, the dust must be removed from the FOAMGLAS surface. The PC 14 base coat is applied with a stainless steel trowel to the FOAMGLAS insulation. The PC 150 reinforcing mesh is laid flat with the seams overlapping. The structure of the fabric remains easily visible. After drying of the base coat the roughcast render PC 78, granulation 0.5 to mm, can be applied. The surface is abraded with a plastic disk to create the desired structure. Connections with other constructions are to be made according to plastering tech - niques and if necessary with flexible joints. Note For use in indoor swimming pools with high temperatures and air humidity an additional stain blocking primer is applied to the PC 14 plaster base, e.g. PC System.2.1 with roughcast render 1 Solid wall (concrete / brickwork) 2 Primer FOAMGLAS slabs, bonded with PC 5 4 Base coat PC 14 with reinforcing meshed glass fabric PC Roughcast render PC 78 Dresden, Brühl terraces with baroque ensemble and the old city.

7 Interior fittings, facade, wall base FOAMGLAS wall system with a thick coat of mineral render for interior walls, facades, bases The FOAMGLAS system.2.8 with a thick coat of mineral render is readily used for interiors with high mechanical requirements, e.g. sports halls, archives, exhibition halls, town halls, assembly areas, and workshops. With the FOAMGLAS system building facades are made disaster-resistant. In danger zones, buildings are to be equipped with building materials to at least 0.5 m above the highest ice-free high-water level that are resistant to water and sufficiently resistant to currents and ice-drift. Due to the high mechanical strength of FOAMGLAS and the bonded adhesion to the wall, a compact waterproof system is created without risks of interstitial moisture. In conjunction with a thick coat of mineral render, the robust system with great compressive strength is convincing in terms of resistance to backwater. Installation method Interior fittings.2.8 Facade system The vapour-proof and diffusion-proof FOAMGLAS insula - tion is given a cell-filling top coat with PC 5 adhesive, which acts as a separating layer between the FOAMGLAS and the lime mortar coat. Depending upon the temperature and air humidity a waiting period for the adhesive to dry is to be observed. A galvanized, reinforcing mesh with spacer is fixed with suitable dowel parts to the insulation. It forms the plaster carrier for interior and exterior new and reno - vation application. FOAMGLAS penetrations, e.g. for se - curing the reinforcing mesh panel, are to be sealed with PC 18 or PITTSEAL 444 cold adhesive. Thick bed renders are applied according to the manufacturer s instructions with a plasterer s trowel or as a machine plaster. Wall base system 2.5.1, standard solution The FOAMGLAS wall base standard solution allows to create a solid and resistant construction. The strength and vapour-tightness of the insulating material enable for different finishes, including thin brick veneer or sliced brick veneer, without backing ventilation. The system allows for mounting with wall ties. Due to the compact insulation construction, filling the joints is not a problem. The specific benefits of the FOAMGLAS base construction are: security at high mechanical loads and even more extreme water loading at the base. The flooding events and increased groundwater levels in recent years have indicated that planning measures are required. They range from natural river repair to bans on construction, improved water barrier systems, to adequate structural systems for new construction and redevelopment. Construction technology with pressure resistant and waterproof FOAMGLAS compact insulation with the bonding of all components has been shown to work Interior insulation system.2.8 and facade insulation system Solid wall (concrete / brickwork) 2 Primer FOAMGLAS slabs, bonded with PC 5 4 Top coat of PC 5 5 Reinforcing mesh with mechanical fasteners Render coat Hamburg, Sandtorkai Base compound system Solid wall (concrete / brickwork) 2 Dampproofing membrane Primer 4 FOAMGLAS slabs, bonded with PC SK-Fix 5 Top coat of PC SK-Fix Reinforcing mesh with mechanical fasteners 7 Render coat 8 Flexible waterproofing slurry, e.g. weber.tec 824 or weber.tec Superflex D2 7

8 Pittsburgh Corning (U.K.) Ltd. Milford Road Reading, Berks. RG1 8LG United Kingdom Phone +44 (0) , Fax +44 (0) Elbe - from Prague, via Dresden to Hamburg. Pittsburgh Corning Europe N.V. / S.A. Headquarters Europe, Middle East and Africa Albertkade 1, B 980 Tessenderlo Phone , Fax PCE-pdf B-UK-en-PI-1008