June is building a new home in Kenora and they have decided to make what is often called a double wall structure to have room for lots of insulation. They are intending to build with 2x6 walls and then add another 2x4 on the inside to hold more insulation. They have been told that they could do s...
Common Name: Cellulose Fiber, ground up newspapers.
Colour: Grey or white.
Thermal Resistance: RSI - .025/mm R - 3.6/in. Good
Cost: Lowest plus blower. (The only blowers that can be rented by homeowners)
Capacity to dry out if wet: Fair to poor
Fire Resistance: Good to Fair (Borax can leach ...
As I look at my own database, I see that I have almost 100 answers to specific questions about roofs and roofing. Despite a good search engine, that much scattered information can get confusing. Let me make just a couple of overview statements to help guide you in getting your existing or new r...
This is one of those problems that are not dealt with seriously enough by the building officials in really cold regions. I have opened a blog space at the bottom of this article for you to add in your case history so we can demonstrate that this is a large and continuing problem. Take a look...
Wayland asked: “Does wet Owens Corning Formula Styrofoam ever dry out?”
Extruded polystyrene insulation is generally considered waterproof. In fact it was first invented by Dow Chemical for the US army in WW I to provide unsinkable floating bridges -- and has been used as the flotation eleme...
Example: Styrofoam products by Dow (by the way, Styrofoam is a Dow Chemical brand name and not a generic term for foam insulation).
Colour: Blue (Dow) or Pink (Celfort)
Thermal Resistance: RSI - .035/mm R - 5.0/in. Very high.
Cost: high
Capacity to dry out if wet: Won't get wet
Fire Resistan...
Research projects by George Brown College,Red River College and Jon Eakes
studying pressure equilization in low rise wood frame residential construction
GEORGE BROWN COLLEGE
Link to PDF: Pressure Equalization final report revised January 2024 -- George Brown College.
Link to Fenestratio...