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  1. 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...
  2. 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...
  3. HVAC
    I have a gas furnace in an attic that I am getting ready to insulate with spray foam on the roof deck. This will seal the attic area in except for any infiltration from the living area below. I don't think there will be enough oxygen to fuel the furnace and I don't want to open to the outside...
  4. Building & Construction
    Anyone have any experience using tiger foam? I need to do where my joists meet my foundation wall as there has been a lot of movement and there are gaps, but I'm not keen on paying someone thousands of dollars to come in and do it. Any stories, horror or otherwise? The local guys here are...
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