Lightweight Concrete Roof Insulation Details

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Lightweight concrete roof insulation details.

Siplast lightweight insulating concrete is available in four mix designs. Lwic have been in use for over 60 years. Lwic systems provide the designer with a. The four designs represent a range of compressive and tensile strengths allowing a choice of system based on substrate and specific project circumstances.

Since 1985 cellucrete corp has been applying lightweight insulating concrete for roof decks structural concrete engineered fill applications and floor fill installations. Zic nvs insulcel and zonocel. 03 52 00 2. Lightweight insulating concrete insulation.

Lightweight insulating concrete systems. The eps insulation must have a minimum density of 1 pound per cubic foot and have keyholes properly spaced throughout the boards for concrete flow through the boards. Each design encapsulates the insulation board in insulating concrete. Section 03 52 00 lightweight concrete roof insulation.

Zic is used in new construction applications over slotted galvanized metal decking. This process provides fire protection prevents air infiltration and bonds the total insulation system to the substrate. The standard 1 6 mix requires a minimum 2 inch thickness of zic over the top of the insulperm insulation board. Air entrainment and water.

The lighter weight concretes 50 pounds per cubic foot or less which are the most effective as insulation can be used in combination with other materials in wall roof and floor systems where they are the most advantageous in reducing heating and cooling costs. Expanded polysterene eps used in lwic is the preferred material. With and elastizell system only the roofing membrane need be replaced. The lightweight insulated concrete system lwic utilizes the sarnafil g 410 feltback roof membrane designed specifically for adhered applications bonded to the concrete using sarnacol 2121 water based membrane adhesive.

Elastizell low density insulating concrete roof decks are not damaged by water and the encapsulated eps board the heart of the insulating system is completely protected. Cellucrete has established itself as the leader in the lightweight insulating concrete industry with a proven track record of high quality installations throughout the southeast united states. The standard zic mix is a 1 6 ratio of portland cement volume to zic concrete aggregate volume. This section specifies insulating concrete placed on a prepared structural deck and integral insulating board composite construction.

Lightweight insulating concrete includes the application of expanded polystyrene eps insulation boards. Section 03 52 00lightweight concrete roof insulation.