Recent Q&A

• Identifying Roof Problems

  Hello all, My house has a roof with spray foam. It's like this article. https://www.nachi.org/inspecting-spray-foam-insulation-under-roof-sheathing.htm I want to install solar panels on my roof, but I'm worrying about possible problem…

• Solar panel installation: Tesla vs local company

  Hello, I'm considering installing solar panel on my roof. The local solar company said they have 25 year labor warranty. The owner is very friendly, and he is a great person…

• Knauf ECOBATT R-21HD b94ev

  Hello all, Is there anyone had experience with Knauf ECOBATT b94ev?Does it smell? This is fiberglass batt. Thank you,Jin

• Soft closed cell foam. What’s the problem?

  Hello all, Let's say your closed cell foam is soft. (I mean it's really soft. You can punch a hole with your finger. ) Is is Part B heavy foam?Thank you,Jin

• Sealing/encapsulating SPF insulation

  Hello, I was having SPF odor problem and one of idea was sealing/encapsulation the SPF. "If the SPF IS the problem, maybe you can air seal the sealing and encapsulate it to…

• Slopped floor of new house

  你好,我有一个问题关于脏的floor of my house. Recently I bought a house and I didn't noticed the slopped floor at the beginning. However I started to…

• SPF problem and alternative solutions?

  Hello all, I have been battling with a SPF problem. My attic/third floor room is having high TVOC level. (Roof deck has SPF.) Since it's winter now, it's manageable. However I'm…