Lightweight Concrete Roof Wood Deck

If a roof is installed over the top surface and the deck was cast into non vented metal form deck the logical conclusion is that the dry down mechanism is at best severely retarded.

Lightweight concrete roof wood deck.

Concrete roof deck systems lightweight insulating concrete lwic roof decks are high performance roof insulation systems that reduce roof maintenance and replacement costs. With these top 40 best proper deck roof ideas you can indulge yourself and your company in the most sumptuous summer splendor. With standard structural concrete the aggregate used is sand and stone. Thereafter precast systems are commonly topside insulated below the roof cover using adhered insulation panels or cast in place lightweight insulating concrete.

The light weight is achieved through use of expanded aggregates such as perlite or vermiculite air entrainment or both. Hard rocks with a low water absorption rate and weighs approximately 2403 kg m 3 150 lb cf. Dektek tile is an elegant and innovative precast concrete decking material that is especially designed for elevated decks and roof decks. It is designed for efficient construction of gradient and thermal insulating layers of flat roofs.

Because of the relatively high aggregate content excess free water is used in pouring the deck. However when a lightweight structural concrete lwsc roof deck is poured in place it uses significantly more water. Polystyrene lightweight concrete s density compression strength and thermal conductivity are similar to that of foam concrete. Lwic decks provide high r values built in air barriers fire ratings sound ratings and improve the overall performance of the building envelope.

The end result of the structural lightweight mix is a deck that can be 20 25 lighter than standard structural concrete. Lightweight insulating concrete decks non structural low density lightweight insulating concrete lwic can be placed upon a variety of structural deck systems that have been designed to carry loads. Brian cornwell writer brian cornwell founded next luxury in 2007 as a magazine for modern gentlemen. The normal weight concrete employs standard aggregates i e.

Roof systems installed over structural lightweight concrete in the tight time driven sequence of construction will likely incur a very heavy upward water vapor drive. Lightweight insulating concrete is also considered non combustible and nailable. Underlayment systems gypsum soundmat floor leveling cell crete has been california s floor system expert for over 40 years. Lwic can be placed atop any of the above mentioned concrete deck types or directly upon a properly supported corrugated steel.