2006-08-13 05:27:14 · 7 answers · asked by remy 3 in Home & Garden ➔ Do It Yourself (DIY)
Has the basement been waterproofed yet, with tar or some other like substance? If it hasn't, that would be the time to do it. When they spray coat the tar, they just stick the insulating material to it. You'll also want to make sure that the insulating foam they use is the type with grooves on one side. The grooved side goes toward the house and is used to direct water down toward the drain tiles surrounding the house and to break the hydrostatic pressure caused where the ground water contacts the basement. Without some means to break the hydrostatic pressure, groundwater exerts a continual pressure on the concrete foundation. At some point that pressure may find a weak spot in the waterproofing and force it's way into the concrete, which is just a really dense sponge, and may cause leaks or worse.
If the house has been waterproofed, you can rent or buy a ramset that drives nails into concrete. You'll want to make sure to get the nails with the plastic washers and of sufficient length (probably the 3.5 inch, assuming 2" foam insulation) and the proper load for concrete (I think number 4, but just read the box). You can get away with relatively few nails per 4x8 (maybe the corners and one at each side in the middle of the long span)sheet because in the end, the backfill will be holding the foam in place. Remember to take into account where the final grade will be and don't go above that mark, then you won't have to go back and trim it later after your grade has been established.
2006-08-16 05:07:47 · answer #1 · answered by dzbuilder 2 · 0⤊ 0⤋
Uhhhmmmmm, you're supposed to attach it to the inside of the wall not the outside.
2006-08-13 12:41:54 · answer #2 · answered by Gitchy gitchy ya ya da da 3 · 0⤊ 0⤋
The adhesive you need is called "foam and panel" adhesive. Several companies make it. It comes in caulking tubes or cans. The glues that do not carry the foam and panel description have solvents that will dissolve the foam.
2006-08-16 09:26:27 · answer #3 · answered by Leo L 7 · 0⤊ 0⤋
A special glue is available in Home Depot or Lowes. Specifically it is meant for this purpose. Check there.
2006-08-13 13:14:14 · answer #4 · answered by Nightrider 7 · 0⤊ 0⤋
the make a #4 nail with a washer on it just for this...u can also get it in a ram-set gun!
note: to cut down on some of the nailing u can apply adhesive to the board also along with spot nailing.....
lic. gen. contractor
2006-08-13 12:47:58 · answer #5 · answered by bigg_dogg44 6 · 0⤊ 0⤋
Stick it to Tar
2006-08-13 15:31:34 · answer #6 · answered by Anonymous · 0⤊ 0⤋
CONCRETE NAILS OR PL400.
2006-08-13 15:34:52 · answer #7 · answered by petasucks101 5 · 0⤊ 0⤋