Recent Q&A

• Sound dampening floor cavities

  This is for sound dampening purposes only? I have a second floor area which has a room on the second floor with exposed floor joist cavities and I want to…

• Spray Foam Under Roof Sheathing

  Climate zone 4, how much open cell spray foam do I need to install to create a proper vapor barrier to the underside of the roof sheathing? Thank you, Kevin

• Small hip roof above bedroom.

  In climate zone 4 I have an old house with a small half of a hip roof off the side of the main house. This roof area is above what…

• Detail Library

  Is there a way to download all the drawings or PDFs from the detail library onto a thumb drive for future reference?Thank you

• Long-Probed Wood Moisture Meter

  Hello Pro's, I am following up on a previous question concerning a potential moisture problem in a sill beam and it was recommended that I use a wood moisture meter…

• Comparing Closed-Cell Spray Foam Manufacturers and Suppliers

  You have told us that the chemicals are in short supply or not available at all for closed cell spray foam, My project involves mostly closed cell so, I'm trying…

• Which spray foam manufacturer to choose from

  I have two insulation Contractors and each one has their particular spray foam product they work with. One is using Thermoseal 500 open cell with an R Value of 3.7…

• Spray Foam for Heavy-Timber Rim Joist

  Climate zone 4 very old house 4 x 8 heavy timber joist header sitting directly on top of the rubble stone foundation wall and the joist timbers 8 x 3…

• Residential sound insulation between floors.

  Very Old house wood framed. My question has to do with residential sound transmission between floors. I have access to the joist bays for the second floor floor and second…

• Spray foam over foam board

  Climate zone 4, If there is no problem installing spray foam insulation open or closed cell spray over foam board can the foam board go up against the underside of…