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...
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...
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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 conti...
Frost Protected Shallow Foundations
The foundation for a house is generally poured below the soil grade level so that the footing itself is well below the frost depth for any given region and soil type. This protects the house from frost heaving caused by expanding soils beneath the foundation....
Michael writes from St. Lazare, Quebec : We recently found a nasty surprise with our new house. The land has a high water table and as a result we have sump pump in the basement. The plumbing for this pump was hidden in the walls and ceiling of the basement. When our inspector inspected the home,...
