Dimple Mat And Foam Board

A drainage mesh or dimple plastic mat is installed over the existing slab then covered with rigid foam and a floating subfloor see figure 1.

Dimple mat and foam board.

I ll be using metal siding above grade. 6 9 8 4 dimple height. The above slab drainage layer must be connected to an interior sump pit. Goal is maximum thermal comfort for little kids to play in the basement.

Superseal dimpled membrane provides the maximum protection for your insulated concrete forms and is fast becoming the preferred choice. My current plan is to construct the foundation wall apply a parge coat probably with quikrete surface bond cement coat that with thoroseal then secure a superseal dimple mat up to grade then 3 of foam board or roxul insulation before backfilling. Mar flex neofoam insulation board with neopor technology is a astm 578 pib 3028 expandable polystyrene foam board that has considerably better thermal insulation capability than. It comes from the building america solution center.

Insulate over concrete walls with 2 xps foam board on top of dimple mat. The dimpled drainage board can help reduce intermittent hydrostatic pressure because it moves water away before pressure can build against the foundation. Other installers put the dimple mat on the exterior side of the rigid foam between the rigid foam and the backfill. 50 50 50 roll height.

Spray on waterproofing may require a protection board on the icf due to its softness. A dampproofing coating is advisable behind drainage boards to prevent incidental moisture infiltration as long as it doesn t interfere with performance or the manufacturer s specifications. Dimpled membrane made from high density polyethylene hdpe a co extruded product 60 recycled hdpe and 40 virgin hdpe. 2x4 framing wood or metal haven t decided on top of dimplemat with insulations between studs with drywall on top.

1 xps over dimple mat over the floor. Virgin hdpe outside layer and recycled hdpe core make it the most durable dimpled membrane on the market. Without a protection board the spray on coating could be damaged from backfill. Some installers sandwich the dimple mat between the concrete wall and the rigid foam.

Vacuum formed dimpled pattern allows incidental water to flow into footing drain. Geo mat 6 9 geo mat 8 geo mat 4 color. The detail below shows the latter approach. The protective board can a dimpled mat or a foam or fibrous insulation board.