Vapour barrier / Discussions

I have many issues with my house where should I start?

...barrier so you can find and fix them. That list of questions is pretty long, and I think the best place for you to start is figuring out what your budget is t...

Posted by Bryan Squirrell Sept. 29, 2019, 3:08 p.m. Wall assemblies - renovation 1 Responses

How do you make an airtight house envelope?

...barrier, and even spray foam can sometimes shrink and crack, leaving gaps that can lead to air leakage. Are you stripping the building down to the sheathing? If...

Posted by Valeriy Kraydman Dec. 1, 2020, 2:52 p.m. Air and vapour barriers 1 Responses

How do you insulate a crawlspace with dirt floor?

...vapour barrier will keep the moisture down. For the addition that is on concrete piers, if that means air (and wildlife) are free to travel underneath it, the...

Posted by sal Bellicoso Oct. 30, 2019, 4:56 p.m. Crawl spaces 2 Responses

Can you Insulate a cinder block basement foundation with Rockwool?

...vapour barriers are part of code but where cooling loads are also fairly significant. One of the best things about smart membranes is that they 'look' like ty...

Posted by Victor B June 19, 2019, 11:41 p.m. Basements improvements 5 Responses

How do you Insulate a 3 season cottage?

...vapour barrier. This wouldn’t be my recommendation if you were looking for a fully winterized cottage that would act as a full-time home, in that case we would ...

Posted by Terry Skindilias April 23, 2019, 9:27 a.m. Wall assemblies - renovation 4 Responses

How do you insulate a ceiling and finish it on the inside with wood?

...barrier and or a vapour barrier. But yes, you could finish it with wood afterwards, and here is a link to a page that may help for choosing a wood type, it is a...

Posted by antonija klotz Oct. 20, 2019, 7:31 p.m. Roof assemblies - renovation 1 Responses

Can you use polyiso insulation on the exterior of a wall behind cedar siding on the west coast?

...barrier . Using it on the outside means you are installing an exterior vapour barrier and that’s not a good thing. what made you choose Polyiso? We would alte...

Posted by Iain Matheson Jan. 28, 2020, 10:38 p.m. Wall assemblies - renovation 2 Responses

How you vent a metal roof?

...barrier or vapor barrier. What is recommended at this stage of the install of the roofing assemby? Air or Vapor barrier? install two layers of 1 -1/2 inch...

Posted by Kim jarrett July 12, 2019, 12:15 p.m. Roof coverings 3 Responses

How to air seal & ventilate a partial gut reno of a 1901 house?

...barrier throughout the underside of the roof and inboard of the old sheathing in all the walls where we've gone down to the studs. On the 2nd floor, we will be ...

Posted by Zach Zill Feb. 7, 2021, 4:33 p.m. Air and vapour barriers 0 Responses

Do you have a diagram showing effect of winds on the pressure inside the house?

If the wind is from the south, where and how are positive pressures created in the home? Unfortunately we don’t have any diagrams to clearly depict the effects...

Posted by Bryan Bargen June 8, 2018, 5:20 p.m. Air and vapour barriers 1 Responses

Should you allow air flow through a crawl space with a dirt floor?

...vapour barrier on the ground, but the rest is a little suspect to me as it is to you. First though I would point you to this page in case you haven’t seen it ye...

Posted by Amber Murray Aug. 17, 2020, 10 p.m. Crawl spaces 3 Responses

How do I waterproof a foundation from the inside?

...vapour barrier, finishing materials, how it is assembled, etc. If your basement currently has no finished flooring, an interior water-proofing solution is much ...

Posted by Kurt Brenner Nov. 14, 2017, 9:47 a.m. Foundations and Basements 1 Responses

Do frost lines where studs are on a wall show a failure of spray foam insulation?

I have a customer with frost problems whose home shows every stud from the outside on a winter day. Would you say their spray foam insulation has failed? It's ...

Posted by Gerald Crozier July 22, 2019, 10:24 p.m. Insulation and soundproofing 1 Responses

Is EPS or XPS better for use in basement rim joists? Should faced or unfaced foam boards be used?

...vapour barrier. See this page all about rigid insulation panels - The difference between Polyiso, EPS & XPS Foam Insulation & Styrofoam We always choose (an...

Posted by Thomas Dispenza Sept. 8, 2019, 12:43 a.m. Basements improvements 6 Responses

For home renovation, is it better to install insulation on the inside or outside?

...vapour barrier as well as an air barrier, so it’s a nice all in one solution, though we would recommend you source one of the brands that have moved to lower GW...

Posted by Neil Richardson Jan. 29, 2019, 4:09 p.m. Wall assemblies - renovation 1 Responses

How do you best use polyiso insulation in a basement?

...barrier & ½” gypsum drywall, sealed with drywall sealer and painted with vapor barrier paint. What problems do you see with this detail? Thank you Polyiso rig...

Posted by Iain Matheson Jan. 24, 2020, 7:45 p.m. Basements improvements 1 Responses

What type of insulation under an outdoor deck frame with 2x8s?

...vapour barrier and strapping and Pine. Does that make any sense? And can you spare any space on the interior? Hi Mike, thanks for the reply. This is a 3 season ...

Posted by Eric Dalpe Sept. 15, 2020, 9:13 a.m. Wall assemblies - renovation 4 Responses

Why is there frost on the underside of my roof overhang?

...vapour barrier continuity. Typcial of this construction. Builder should have applied non-skinning butyl caulking b/w ever T&G joint over the top of the exterior...

Posted by George Paul March 23, 2020, 12:10 p.m. Roof assemblies - renovation 3 Responses