Gypsum Concrete Roof Deck Repair

When removing the roofing in the marked areas install 3 4 inch minimum thickness plywood over the marked areas.

Gypsum concrete roof deck repair.

Fill edge joints to slight excess with single pour at sub purlins. Exceptional strength excellent fire performance and the versatility to patch many decks such as gypsum roof decks. We can install several gypsum repair patches including usg securock keydeck mesh and 218 bulb tees. In pennsylvania eastern listed in the blue book network.

Damage that can cause loss of the structural composite strength is most likely to come from leakage of water into the roof deck from unattended roof leaks. Poured gypsum decks provide stable structural properties if kept moisture free. It is mixed at the jobsite with clean water only and poured in place as a patch for existing gypsum decks. Formerly known as pyrofill gypsum concrete securock brand gypsum concrete patch is a high performing gypsum patch solution that delivers a professional finish on a variety of poured roof decks.

Usg securock usg securock brand gypsum concrete patch is mill formulated and composed of specially calcined gypsum and wood chips or shavings. Venting lwic installed over structural concrete and other non venting substrates. This is similar to using floor underlayments as the subfloor base for the floor covering. Connect with the best roof deck concrete gypsum wood etc.

Today many of these systems are being repaired and reused with new roofing materials. Usg securock gypsum concrete patch is noncombustible and used in several ul approved roof deck systems. Free water will cause the gypsum concrete to decompose and lose structural strength. Roofing was added by nailing a base sheet to the gypsum deck and then bonding roofing materials to the base sheet.

Based on the survey results mark off the top surface of the roofing membrane to denote possible areas of concern. Mix gypsum concrete thoroughly using a minimum amount of water to form a thick pourable consistency. Roof deck is placed between or over roof supports and used as a base for the roof covering system. Picture story of gypsum roof deck repair sequence nrdca 600 guideline for application of cementitious wood fiber roof deck systems technical bulletin 1001.

Get pre qualification information projects and their ratings. Each 4 x 8 plywood sheet must span over three bulb tees to provide a.