Dimple Mat And Foam Board
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.
Dimple mat and foam board. Vacuum formed dimpled pattern allows incidental water to flow into footing drain. Goal is maximum thermal comfort for little kids to play in the basement. 50 50 50 roll height. 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.
Insulate over concrete walls with 2 xps foam board on top of dimple mat. Geo mat 6 9 geo mat 8 geo mat 4 color. Other installers put the dimple mat on the exterior side of the rigid foam between the rigid foam and the backfill. The dimpled drainage board can help reduce intermittent hydrostatic pressure because it moves water away before pressure can build against the foundation.
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. 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. The detail below shows the latter approach.
Superseal dimpled membrane provides the maximum protection for your insulated concrete forms and is fast becoming the preferred choice. Virgin hdpe outside layer and recycled hdpe core make it the most durable dimpled membrane on the market. It comes from the building america solution center. 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. One test i apply is if it sounds too good to be true it probably is. Dimpled membrane made from high density polyethylene hdpe a co extruded product 60 recycled hdpe and 40 virgin hdpe. Platon is made from tough durable high density polyethylene hdpe certainteed platon is a waterproofing membrane that provides superior moisture protection for all types of foundations in residential basement applications.
6 9 8 4 dimple height. The above slab drainage layer must be connected to an interior sump pit. I ll be using metal siding above grade. Some elastomeric coatings claim that they do not need a protective layer and some dimpled mats are marketed as complete waterproofing system without a membrane but i am skeptical.