parapet wall waterproofing
The waterproofing of parapets is always carried out “separately” from the waterproofing of the centre area. Then press on thoroughly to ensure reliable adhesive bonding. The spacing between the individual fasteners must not exceed 30 cm. 5 cm up the parapet. Super Matt (PEM 900 & TSA Tint Bases) is a good quality acrylic emulsion paint. The installation method and direction of the waterproofing membranes are to be determined depending on the characteristics of the building (height of the parapet, width of parapet top, building material, if necessary perimeter fastening). The coating is bitumen-free and solvent-free and covered with a protective foil when delivered. Please contact our Export Manager for any information regarding further countries: +49-651-9102-292 +49-651-9102-50292 a.friedrich@alwitra.de. For parapets up to 50 cm height, membranes can be loose laid without fixing on the wall. 28 E. g. by underlaying a strip of permanently elastic materials, especially at uneven substrates. Make sure that there is a waterproof membrane under the coping. prime coat, 2 coats, apply membrane, 3 hours between coats, bitumen/acrylic waterproofing coating used with or without membrane, durable, acrylic waterproofing coating used with membrane. If corners are formed with EVALASTIC® preformed details, they are to be welded with handheld hot-air guns. Until installation, the EVALASTIC® VSKA membranes must be stored in a dark place or covered with tarpaulin. Remove all old and peeling paint with a Hamilton’s scraper or by sanding. White (PEM 900), Pastel Tint Base (TSA 1010), Deep Tint Base (TSA 2000) and Transparent Tint Base (TSA 3010), Will assist in determining the quantity of product required, Suitable for interior and exterior suitably primed plaster, concrete, porous brickwork, various types of building boards, wood, metal, fibre-cement and gypsum plaster, White dries to a matt finish and colours to a low-sheen finish with good washability, Excellent interior and exterior durability and low odour. Cross joints must be welded over with an unbacked tape. Appropriate measures must be taken to make the upper end of the EVALASTIC® VSKA tapes rainproof. The waterproofing of parapets is always carried out “separately” from the waterproofing of the centre area. Slightly press on the tape to remove any blisters. Holes in the lower separation foil must be covered. STEP 2: Prime the surface with Plascon Plaster Primer. Inner edges of the parapet must be shaped in such a way that the roof waterproofing can be applied without damage. This page uses functions which rely on JavaScript. The membranes must be laid so as to have as little covering layers lying on top of each other as possible at the parapet corners. The water is now not under pressure and can be intercepted by the flashing at the bottom of the cavity and evacuated through weepholes. 5 cm up the parapet. EVALASTIC® V / VSKA membranes can be applied directly around cut-off edges. Protection against wind uplift: The edge of the waterproofing at the top of the parapet must be sufficiently ensured against wind uplift. Place the EVALASTIC® VSKA tapes in the correct position. We use cookies to improve your experience on our website. EVALASTIC® VSKA tapes can be installed at temperatures over +5 °C. The primer must be completely dry before applying the EVALASTIC® VSKA tapes. Thus, a homogeneous welding of the EVALASTIC® VSKA tapes to the roof sealing and the coated metal sheet angle is guaranteed. The underside coating of the EVALASTIC® VSKA tapes, in connection with the alwitra primer SK or SK-L (see chapter 6.4.5.3), adheres to all standard building substrates at the roof perimeter or wall flashing area, e. g. timber, concrete, bituminous felt,brick work, zinc and steel sheets, aluminium or synthetic materials. STEP 1: Repair and fill any cracks with Polycell Ready Mixed Crack Filler or Polycell Masonry Patching Plaster. a.b.e. For parapets over 50 cm height, the membranes must be either fully bonded, or secured intermediately with EVALASTIC® coated metal sheets or single fasteners (max. Waterproofing issues are most common on homes with flat deck roofs and parapet walls. The waterproofing of the centre area should be raised approx. Membranes laid parallel to the parapet are butt together at the corner areas or laid around corners. Test bonding is obligatory! EVALASTIC® VSKA tapes are produced with a non-coated approx. The lap width at the butt joint should be approx. Plaster and mortar are very porous and absorb moisture the same way a sponge would, so even a small crack on the top of a parapet that allows water into the wall, may result in peeling or damaged paint. EVALASTIC® VSKA tapes are membrane tapes with a polyester fleece backing and a synthetic adhesive compound coating. By using this website, you agree to the use of cookies. Allow 4 hours drying time between applications. A parapet indicates any low wall along the roof of a building, the edge of a balcony, the side of a bridge, or similar structure. Remove the lower protective foil. Substrates must have a stable, plain surface, they must be dry and free from grease and oil. For more information, please visit our, Synthetic coating of aluminium components, New, worldwide unique powder coating line, 3 Packing, transportation, storage and disposal, 4 Waterproofing concept for the roof area, 6 Laying methods and fixing of the roof waterproofing, 7 Perimeter fastening of the roof waterproofing, 8 Temporary securing of the edge for interruption of work, 9 Installing maintenance walkways on the roof waterproofing, 12 Waterproofing of expansion joints and connection to other types of roofing, 13 Flashing of edge trim profiles and integrated details, 14 Securing the position of lightning conductor holders, 15 Forming of EVALASTIC® coated metal sheets, General Terms of Delivery of alwitra GmbH. ® Construction Chemicals ‘ range of Waterproofing Products for Parapet Walls consists of: DIY - hydroproof hydroproof is a flexible water based acrylic compound, which is used together with abe® membrane to provide a seamless liquid waterproofing system. By browsing this website, you agree to our use of cookies. With loose laid membranes, this is accomplished by mechanically fastened EVALASTIC® coated metal sheet angles 28, whereas fully bonded membranes, depending on the building height and edge details (edge trim, capping), may be additionally mechanically fastened in line. Non cut-off, sharp edges can be covered with a mechanically fastened EVALASTIC® coated metal sheet angle. 10 cm. The principles are easy. 12 cm wide welding edge on both sides (tape width 86 cm / 66 cm), or on one side (tape width 43 cm / 33 cm). A step-by-step DIY guide to waterproofing parapet walls. Slope the top of them inward so they don’t stain the building façade. Disclosed is a system for waterproofing interior surfaces of parapet walls disposed on a roof, wherein the parapet walls include an interior surface counter flashing and a surface cap. vertical interval 50 cm ). A parapet indicates any low wall along the roof of a building, the edge of a balcony, the side of a bridge, or similar structure. Please enable JavaScript for a better user experience. Protection against wind uplift: The edge of the waterproofing at the top of the parapet. All rights reserved. Our website uses cookies to optimize the user experience. STEP 2: Prime the surface with Plascon Plaster Primer. The easiest thing to get right about parapet construction is to keep rainwater from getting into the top of them. Waterproofing issues are most common on homes with flat deck roofs and parapet … A bonding facilitator of alwitra primer SK or SK-L is to be applied onto the substrate (see application instructions in chapter 6.4.5.3). Make sure that the non-coated welding edge is aligned so as to be homogeneously welded to the roof waterproofing after applying the tape. STEP 3: Apply Plascon Multiseal with a Hamilton’s brush or roller and build up to a thickness of 1mm in 3 coats. Remove all old and peeling paint with a Hamilton’s scraper or by sanding. Parapet walls may be constructed as a solid or cavity wall, or in the case of concrete masonry units, as a single wythe wall. The waterproofing of the centre area should be raised approx. STEP 4: Finish with your chosen topcoat, such as Plascon Wall & All or Plascon Micatex.

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