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  1. Insulation
    Hi, new member here. I am renovating a 25’x20’ guesthouse in a wooded area next to a pond in Wisconsin. So it is a damp climate that ranges maybe from -20 to 110 degrees at the extremes. The floor of the cabin is 10” joists over a 2’ crawl space of dirt. I encapsulated the crawl space the...
  2. Insulation
    Hi. I’m building an indoor sport court in Minnesota that has 12 foot concrete foundation walls on two sides. It is framed with a 2×8 exterior wall and a 2×4 interior wall, with about 1.5 inches between the two walls. I just finishing applying 2 inches of spray foam on the wall. Next, I plan to...
  3. General DIY Discussions
    It seems in my project I will have to spray foam into a wall cavity , which is insulated (UNDER the sheating ) with a 1/2" XPS Foam. does anybody know if spray foam will succesfully stick to the XPS foam? Another option is to simply cut out the 1/2" XPS (remove large rectangles ), and spray...
  4. Electrical
    I will be building my own home. I will be using 2x6 24" on center for the outer walls. The inside walls will be 2x4 16" on center, but no spray foam, so not worried about them. I will be using closed cell spray insulation but not sure how to proceed with the rough-in for the electrical and do...
  5. Insulation
    I have a 1 and 1/2 story house with two bedrooms and a bath upstairs. The house was build in 1910 so there is no insulation in the walls and only R-19 in the rafters. I live in Minnesota so it gets very cold but we also have days above 90 during the summer. The rafters have drywall on them so I...
  6. Insulation
    I'm currently working on insulating a van and I would like to use spray foam insulation but I'm having trouble applying it properly in the nooks of the van (specifically the ceiling crossbeams). It is my understanding that the foam should be applied in layers in order for it to properly settle...
  7. Insulation
    Hello, I been noticing that a room directly above the garage is significantly cooler then the other rooms in my house. The house is only about 2yrs old. I am thinking of calling a professional spray foam insulator to spray foam the top of my garage ceiling, above the drywall. Would this help, or...
  8. General DIY Discussions
    Hi all I am in the process of building an extension, 16x24 to an existing structure in coastal northern CA ( temperate but humid). It rarely gets below freezing in the winter but still seems cold as it is a wet climate then. The walls are 2x6 framing, 12ft high ceilings ( art studio) I am...
  9. Electrical
    I've read the NEC requirement to reduce the ampacity of a NM (i.e. romex) electrical cable when encased in spray foam insulation (because a NM wire heating up due to a significant current draw cannot dissipate the genereated heat quickly enough due to the spray foam insulation, and it may cause...
  10. Insulation
    My recently-purchased 1949 one-story ranch has a crawl space with untreated sill plate resting on top of a somewhat wavy (in places) foundation wall. There's tar paper or something like that between the wood and concrete. Because the top of the foundation isn't perfectly flat, there are large...
  11. Insulation
    Hello, I'm currently trying to find a solution to insulate one of the corners of our garage. The wall are framed with 2" x 6" lumber. To insulate one of the tricky corners, I only have about 1" to put the insulation in (see photos below). I was thinking of going with spray foam. I have a...
  12. Building & Construction
    Hi, My home was built in the 1970s with a full basement; however, in the early 1980s two extensions were added using crawl spaces, rather than digging out a full basement. Each crawl space is vented, one has a dirt floor, the other is over the old concrete patio (which has multiple cracks)...
  13. Insulation
    Hi Folks and Merry Christmas, I live in a northern suburb of Detroit Michigan. I have a 40 x 40 metal pole barn with a cement floor. I have attached a few photos. From what I can tell based on the township records it was built in 1969. I need to insulate it so I can work outside in the...
  14. Insulation
    Ok after looking here I can't find the answer, so I'm going to ask. I have three bedrooms and two baths over my two car garage. The garage ceiling is sheetrocked and finished but does not have any insulation, thus the rooms get chilly versus the basement ceiling which has roxul sound...
  15. HVAC
    Had a contractor replace stolen suction and liquid lines running from the condenser to the coil. Unfortunately, he did a hack job where the lines meet the furnace, it has been leaking condensation on the outside of the furnace do to improper insulation. I called him back, he came out and just...
  16. Building & Construction
    I'm about to pull my hair out as I've been searching the web, as well as, looked through the many posts on this subject here and finally just decided to post one of my own. It is becoming frustrating because one person or site says one thing and then there is another that contradicts what the...
  17. Roofing/Siding
    ...... I am looking for something to do my home 6000+ sqftage of roof to be done with walls and the I can turn around and sell it. I am looking for something above entry level but something I can learn to use easily and then pass on after by selling it to the next person. Anyone know of anyone?
  18. Concrete, Stone & Masonry
    I have a two-story colonial with a full-basement in upstate NY. The basement has cinderblock walls and the basement floor is a poured concrete slab. The basement walls also have some sort of stucco/cement parging applied. I have a 1/2" to 1" gap between the basement walls and the basement...
  19. Building & Construction
    well I am looking at doing spray foam on my rim joist, since its been a pain in the butt to do it with XPS in some of the smaller spots..... was looking at the home kits Tiger foam sells fast and slow rise (I'd assume I want fast because this isn't an enclosed space behind walls... just the rim...
  20. Building & Construction
    Need a little direction here: 2x8 ceiling joist in a bonus room above a garage, located in Michigan. want the highest R-value without building ceiling down. was looking at closed cell spray foam. --will 2 pound density break away over time (to rigid?) --should i get 1/2...
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