Expands when curing; good for larger cracks indoors or outdoors. Don't worry about finding and sealing all the little holes in your attic; your biggest savings will come from plugging the large ones. If the joint depth exceeds ½”, insert foam backer rod material into the joint before applying the sealant. We live in an 1890’s frame house in central Texas, built on brick piers with all cedar beams, joists, etc. You can also check for incentives using the DSIRE database for state incentives. Contact your local health department for the name of an approved lab. Gather all your tools and supplies before you begin to minimize trips into and out of the attic. Hi, we're Ethan, Jocie, Kim and Fred. During hot weather, start working early, as attics heat up as the day goes on. Do not use spray foam. Once the fiberglass insulation is in place, follow the directions on the can to foam the space around the pipe. Note dropped soffits over kitchen cabinets or bath vanities, slanted ceilings over stairways, areas where walls (interior and exterior) meet the ceiling, and any other dropped-ceiling areas. Cut slots 1 inch deep and a few inches apart along the top, and bend the tabs in. I thought that that area should have R-38 for this application. The r value does not stay the same, but its pointless to add more foam because after you hit 3″ there is virtually no air leakage. What would you use for the ceiling? I live in North Dakota and I want to insulate my garage. This is the result of filtering dusty air from the house. Foam board insulation is easy to cut with a circular saw with a masonry blade or scored with a utility knife and snapped like you would drywall. I stumbled across your blog looking for info on closed cell spray foam insulation. I don’t know which route to go, spray foam, or fiberglass batts? Will you install foam in your house? It has the advantage of forming its own vapor barrier, and it can be sprayed to any thickness. The good news is that, even if you're not comfortable taking on this project yourself, there are many qualified contractors who can help you get the work done. We think that’s an excellent question, and the answer is, like R-values for rigid foam boards, it depends. It get’s pretty cold here in the winter and I’m trying to get the job done right and try and save a few bucks in the process. Addressing this properly may require additional ventilation fans to maintain safe air quality in the home and repairs to reduce or eliminate the sources of indoor air pollutants. When installing the foam, use caulk or tape for maximum insulation between the … Put 2 inches of closed cell all around your basement – that’s all you’ll need and it’ll be plenty warm and proper. Double whammy, but regardless, the added costs of foam annually on your mortgage will most often times out weigh the savings. Don’t use ANY spray foams. We need to insulate floors on the first floor; they get very cold in the winter. At 3″ you will not need to turn on your HVAC system that much and virtually no air will escape. Polyurethane, expandable spray foam. Use the same technique for masonry chimneys. Air sealing in the attic is generally a challenging DIY project, but the benefits can be substantial. Because the pipe gets hot, building codes usually require 1 inch of clearance from metal flues (2 inches from masonry chimneys) to any combustible material, including insulation. If somebody is pushing foam, ask them for their energy license information. My question is for the ceiling. If you ever get a moisture problem from the outside, open cell foam is a haven for mold. Any advice? It protects the lining of your house, and can even assist in the heating and cooling of your house during those unbearably cold or hot days. Again, cover with insulation when you're done.
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