Lightweight Concrete Roof Wood Deck

Brian cornwell writer brian cornwell founded next luxury in 2007 as a magazine for modern gentlemen.

Lightweight concrete roof wood deck.

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. Thereafter precast systems are commonly topside insulated below the roof cover using adhered insulation panels or cast in place lightweight insulating concrete. Polystyrene lightweight concrete s density compression strength and thermal conductivity are similar to that of foam concrete. Concrete roof deck systems lightweight insulating concrete lwic roof decks are high performance roof insulation systems that reduce roof maintenance and replacement costs.

Lightweight insulating concrete is also considered non combustible and nailable. However when a lightweight structural concrete lwsc roof deck is poured in place it uses significantly more water. Underlayment systems gypsum soundmat floor leveling cell crete has been california s floor system expert for over 40 years. 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.

It is designed for efficient construction of gradient and thermal insulating layers of flat roofs. Lwic decks provide high r values built in air barriers fire ratings sound ratings and improve the overall performance of the building envelope. With these top 40 best proper deck roof ideas you can indulge yourself and your company in the most sumptuous summer splendor. The normal weight concrete employs standard aggregates i e.

Low density insulating concrete roof decks are monolithic composite systems cast over galvanized metal decks structural concrete wood decks or existing roof systems. The light weight is achieved through use of expanded aggregates such as perlite or vermiculite air entrainment or both. Dektek tile is an elegant and innovative precast concrete decking material that is especially designed for elevated decks and roof decks. The end result of the structural lightweight mix is a deck that can be 20 25 lighter than standard structural concrete.

Because of the relatively high aggregate content excess free water is used in pouring the deck. With standard structural concrete the aggregate used is sand and stone. Hard rocks with a low water absorption rate and weighs approximately 2403 kg m 3 150 lb cf. With structural lightweight concrete a mix of shale slate slag and clay are used and with this mix the aggregate is fully saturated prior to mixing.