The basement that in years past was largely unused except for storage or as utility space is seen today as potential living space. Weve written several articles about basement insulation and a cost effective approach to basement insulation using foam board and fiberglass insulationsince writing those articles weve received quite a few questions about when to use a basement vapor barrier and when not to.
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Finishing basement later can encroach on usable space.
Vapour barrier basement walls ontario. Ontario building code 2017 solutions for basement walls slab insulation requirements david kelly sr. Account manager dow building solutions. Add a vapour barrier over top of the whole thing making sure to overlap joists by 6 and seal with a caulking or tape.
The vapour barrier did not protect the exterior wall from damage and mold growth. So we thought it might be a good idea to clear up some of the confusion. Featuring codebord exterior air barrier system owens corning canadas building science innovation creating a high performance basement insulation and moisture management system for the.
With the correct insulation your basement can stay warmer in the winter by keeping the cold from penetrating your basement walls and cooler in the summer by adding a layer between you and the hot air outside. Homebuyers are not willing to accept the damp cold wet moldy basement of the past. Basement vapor barrier and insulation.
I believe code allows r15 fiberglass plus vapour barrier on basement walls. Want to use rigid pink foam boards for concrete 15 r75. Basement walls reference table 3112a ip zone 1 compliance packages.
Trying to figure out building code for ontario what r value and what insulation along with vapor barrier is up to code. Creating a healthy comfortable living space in the basement is a challenge for todays build ers. Notice the difference between the studs against the foundation and the studs that formed an interior division wall.
This was a typical basement wall assembly with a stud wall directly against the foundation followed by fiberglass insulation and a vapour barrier.
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