Yes you can nail through the foam once it's set up. It takes a several hours for the foam to fully cure so you may want to wait 24 hours before trimming any excess.
Dear Christopher: Great idea to air-seal and insualte the framing and trim around your windows, plus you picked the right version of Great Stuff. The 'Window and Door' variant remains flexible after it cures to avoid cracks as things expand and contract, e.g. around your stone walls and wood windows. The number of cans you will need depends on the cubic inches you need to fill. The team at Fine Homebuilding ran a test a few years ago -- here are their results plus some tips: (1) Standard cans with the straw applicator produce 36 cubic inches per ounce. With a 16 ounce can this equals 576 cubic inches or 1/3 cubic feet. (2) The larger 'pro' cans that are used with a gun instead of a straw increase the yield by 33%. A 'Pro gun' also makes application much easier compared to the small straw on the consumer cans. (Pro cans and guns are available at Home Depot, in addition to consumer cans with the straw.) (3) Great Stuff is a one-component foam that uses moisture in the air to cure. If you spritz the foam with a little water after you apply it, you can boost the volume by 73% (gun) to 92% (straw). This also improves the density of the cured foam and accelerates the curing process. (4) Results with a spritz of water, 'Pro' cans with the gun will yield 83 cubic inches per ounce, and the straw cans yield 69 cubic inches per ounce. With a 24 ounce can and a gun, this equals 1,992 cubic inches or 1.15 cubic feet. With a 16 ounce can and a straw, this equals 1,104 cubic inches or .64 cubic feet (5) To fill a larger hole, apply one layer of foam, spritz it with water and let it cure. Then repeat the process. Do not try to fill a large hole or gap in one go; the foam will not cure properly. (6) Cured Great Stuff foam is very flammable (including the 'Fireblock' version) and will ignite at just 240 degrees F. This is significantly lower than the ignition temp for wood. Do not install it near anything that might get hot. Large areas in a home, garage, basement or storage area must be covered by an approved thermal barrier, e.g. 1/2" drywall. (7) Great Stuff sticks tenaciously to everything, including painted surfaces, carpet, your hair and hands, etc. No standard solvent will dissolve it; you have to let it cure, then scrap, sand or scrub it off. So wear gloves and eye protection, and tarp off anything nearby when you spray it. I hope this is helpful, Mark
It would certainly seal those gaps, but this is designed to be a more permanent seal not a temporary seal. So if you want to remove the window unit, you would have quite a project cleaning up the leftover foam . If you are using a window unit in a garage or another location whee you do NOT plan on removing it, I would probably use this product.
It can, but it is a messy and lengthy process. Much worse than removing "popcorn" ceiling. Any finished surfaces may require sanding and refinishing
It could seal such an opening, but you will need to apply in layers. Allow the first layer to expand and solidify, then apply the next. If you attempt to fill a large opening at once, you may fill it, but when it expands you will have a balloon effect, not a flat surface that matches the stucco
Dear Aryadne: No, Great Stuff foam degrades outdoors, particularly if exposed to sunlight. Use stucco patch, e.g. La Habra Model # 3324-00097, Home Depot Internet #205128835, UPC Code # 748727868342, which is available in a range of colors. Or Sika Model # 503333, Home Depot Internet #206508299, UPC Code # 033886088442 Store SKU #1001662092 I hope this is helpful,, Mark
I'm very confident it is. This stuff doesn't expand (designed so it will not distort window frames, etc.) Because it doesn't expand, make sure you fill the entire void. This will end up with a fairly tough "skin", which for your application, would be best if you do not cut it. The foam under the skin, is an open type foam, so it could retain water. They make another product which is very similar, but it expands. I'm thinking your threshold should be robust enough to withstand the expanding foam, (which should seal better), as long as you don't have to trim it back, and cut the skin.
So far it has not. I have used it before and had no problems.
That depends on if you have voids or not. This would be better than caulking to fill voids than caulking would, however, if it is just seams that leak, caulking would be better.