28 E. g. by underlaying a strip of permanently elastic materials, especially at uneven substrates. EVALASTIC® V / VSKA membranes can be applied directly around cut-off edges. A step-by-step DIY guide to waterproofing parapet walls. Need an approved waterproofing contractor, © 2020 How to with abe. STEP 3: Apply Plascon Multiseal with a Hamilton’s brush or roller and build up to a thickness of 1mm in 3 coats. The spacing between the individual fasteners must not exceed 30 cm. The easiest thing to get right about parapet construction is to keep rainwater from getting into the top of them. Slightly press on the tape to remove any blisters. Substrates must have a stable, plain surface, they must be dry and free from grease and oil. Depending on the substrate, the coating may show at the membrane surface. The waterproofing of parapets is always carried out “separately” from the waterproofing of the centre area. The water is now not under pressure and can be intercepted by the flashing at the bottom of the cavity and evacuated through weepholes. EVALASTIC® VSKA tapes can be installed at temperatures over +5 °C. Non cut-off, sharp edges can be covered with a mechanically fastened EVALASTIC® coated metal sheet angle. By browsing this website, you agree to our use of cookies. Waterproofing issues are most common on homes with flat deck roofs and parapet …

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.

Test bonding is obligatory! Place the EVALASTIC® VSKA tapes in the correct position. Membranes laid parallel to the parapet are butt together at the corner areas or laid around corners. Remove all old and peeling paint with a Hamilton’s scraper or by sanding. Appropriate measures must be taken to make the upper end of the EVALASTIC® VSKA tapes rainproof. The edge of the roof waterproofing at the parapet must be sealed so as to be windproof. 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. 12 cm wide welding edge on both sides (tape width 86 cm / 66 cm), or on one side (tape width 43 cm / 33 cm). Parapet walls may be constructed as a solid or cavity wall, or in the case of concrete masonry units, as a single wythe wall. STEP 2: Prime the surface with Plascon Plaster Primer. Waterproofing issues are most common on homes with flat deck roofs and parapet walls. Make sure that the non-coated welding edge is aligned so as to be homogeneously welded to the roof waterproofing after applying the tape. If corners are formed with EVALASTIC® preformed details, they are to be welded with handheld hot-air guns. The coating is bitumen-free and solvent-free and covered with a protective foil when delivered. The waterproofing of the centre area should be raised approx. 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. 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. 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. Protection against wind uplift: The edge of the waterproofing at the top of the parapet must be sufficiently ensured against wind uplift. Please contact our Export Manager for any information regarding further countries: +49-651-9102-292 +49-651-9102-50292 a.friedrich@alwitra.de. Super Matt (PEM 900 & TSA Tint Bases) is a good quality acrylic emulsion paint. Holes in the lower separation foil must be covered. 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. The waterproofing of parapets is always carried out “separately” from the waterproofing of the centre area. The primer must be completely dry before applying the EVALASTIC® VSKA tapes. 5 cm up the parapet. By using this website, you agree to the use of cookies. 5 cm up the parapet. This page uses functions which rely on JavaScript. Cross joints must be welded over with an unbacked tape.

Remove the lower protective foil. Make sure that there is a waterproof membrane under the coping. For parapets up to 50 cm height, membranes can be loose laid without fixing on the wall. 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). 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. Our website uses cookies to optimize the user experience.

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). STEP 1: Repair and fill any cracks with Polycell Ready Mixed Crack Filler or Polycell Masonry Patching Plaster. STEP 1: Repair and fill any cracks with Polycell Ready Mixed Crack Filler or Polycell Masonry Patching Plaster. Thus, a homogeneous welding of the EVALASTIC® VSKA tapes to the roof sealing and the coated metal sheet angle is guaranteed.

a.b.e. EVALASTIC® VSKA tapes are membrane tapes with a polyester fleece backing and a synthetic adhesive compound coating. All rights reserved. STEP 4: Finish with your chosen topcoat, such as Plascon Wall & All or Plascon Micatex. 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 all old and peeling paint with a Hamilton’s scraper or by sanding. 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.

We use cookies to improve your experience on our website. Until installation, the EVALASTIC® VSKA membranes must be stored in a dark place or covered with tarpaulin.

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