Lightweight Concrete Roof Deck Repair

Lightweight roof deck concrete is self curing under most conditions.

Lightweight concrete roof deck repair.

Vermiculite for roof decks can be placed over various kinds of form boards fiber fiberglass acoustical and asbestos cement as well as over paper back wire lath. Since 1985 cellucrete corp has been applying lightweight insulating concrete for roof decks structural concrete engineered fill applications and floor fill installations. Nrdca guidelines and procedures. Exceptional strength excellent fire performance and the versatility to patch many decks such as gypsum roof decks.

Our recommendations when structural lightweight concrete decks are going to be installed is to either install a ballasted roofing assembly or to install a vapor barrier directly over the structural lightweight deck and then mechanically fasten at least one layer of roof insulation to the deck. However moist curing is preferable. The nrdca is developing industry consensus guidelines and quality control procedures for the application of systems represented by association members. Repaired areas exposed to high temperatures direct sunlight or extremely windy conditions should be lightly misted with water or covered with damp burlap for 24 hours.

The documents represent an industry consensus on the subjects of application quality control and repair or replacement of various roof deck systems. Flexcrete s monolite is a lightweight high build polymer modified mortar for the repair rendering and profiling of concrete brick or stone substrates.