Vapour barrier / Discussions

I want to insulate the outside of my house, which type of insulation do you think is best?

...vapour barrier, some are not. Some are air barriers, some are not. XPS foam insulation at about 1 inch thick will act as a vapour barrier, EPS foam insulation w...

Posted by J. Ferguson Nov. 15, 2017, 10:34 a.m. Wall assemblies - renovation 12 Responses

What is the best to insulate metal structures for all seasons?

...vapour barrier would be a bad idea. Instead, one would want to rely on a very good air barrier, preventing air flow, but allowing moisture to dry. I understand ...

Posted by Morgan Aldridge Jan. 19, 2019, 1:53 a.m. Wall assemblies - new construction 1 Responses

What type of Insulation can I use on the exterior of my home?

...vapour barrier. XPS has a nice R value per inch, but again, if you refer to that page on rigid board insulation above you'll see that it's also a vapour barri...

Posted by Scott Muller April 18, 2019, 2:19 p.m. Wall assemblies - renovation 6 Responses

What is the best way to do a basement renovation?

...vapour barrier break under the bottom plate and over the insulation on the interior warm side and then drywall over top, the vapour didn't end up being taped bu...

Posted by BIG FOOT Nov. 18, 2020, 9:33 a.m. Basements improvements 1 Responses

How do you fix a moisture problem in a finished basement?

...vapour barrier, so you wouldn’t need to apply a typical 6 mil polyethylene vapour barrier on the wall after the foam (though in some areas building inspectors m...

Posted by Margo MACFARLANE Oct. 28, 2019, 10:24 a.m. Foundation and basement improvements 1 Responses

Should I install a poly moisture barrier before the rigid foam board against a basement wall?

...barrier sounds fine but isn’t even really necessary since you are protecting the stud wall and insulation from the block wall with a vapour barrier. That’s the ...

Posted by DONandCATHY Crenna Dec. 14, 2020, 2:21 p.m. Basements improvements 2 Responses

What is the best way to finish basement walls?

...vapour barrier and drywall. Everything I've researched including articles on this site suggest this is the wrong approach. I plan to glue 2" rigid to foundation...

Posted by Aram Scaram Jan. 21, 2021, 5:13 p.m. Basements improvements 3 Responses

How do you insulate an exterior wall from the outside?

...barrier, the vapor barrier and the thermal barrier as well. But yes, sometimes the price can be a bit prohibitive. However, it does work well and you also need ...

Posted by Stuart Seldon Feb. 11, 2021, 12:21 p.m. Wall assemblies - renovation 1 Responses

Which type of exterior insulation to use on a house?

...vapour barrier inside The 2x4 framing is actually sheathed with a buffalo board type of material on the exterior rather than OSB (I'm assuming the builders sa...

Posted by Trevor Marshand May 26, 2020, 1:16 p.m. Insulation and soundproofing 1 Responses

Do you have recommendations for radon sealing basement concrete & installing new flooring?

...vapour barrier, just as mentioned the specs above. My questiosn are: What is the best, health friendly sealant for radon? And importantly how does this effect o...

Posted by M N Sept. 1, 2020, 2:20 p.m. Basements improvements 1 Responses

Basement reno - How do I effectively insulate my basement?

...vapour barrier laytex paint. Which EPS thickness should I go with? Concrete Slab: DMX aiflow dimple mats +(3/4" EPS, needed? ) +OSB +flooring of choice Head...

Posted by Steve J Feb. 13, 2019, 10:25 p.m. Foundation and basement improvements 2 Responses

How do insulate a basement slab that is sloped ?

...vapour barrier, add 2" xps and then subfloor. Is there a better way to do this ? Thanks for your help ! The best way to insulate a basement floor that is no...

Posted by Louis-François Lapointe Nov. 11, 2020, 10:34 a.m. Basements improvements 1 Responses

How do I insulate my half below grade basement?

...vapour barrier starts on the concrete, just above grade height, goes down the concrete wall, under a 6" frame (with R24 roxul batts) and continues up the warm s...

Posted by tom mckeand Oct. 14, 2019, 11:01 p.m. Basements improvements 1 Responses

What is the best way to insulate exterior walls of a mid-70's Pioneer Log home?

...barrier applied to the exterior then insulation then an exterior like painted wood or something engineered. Should we use a foam insulation or could that lead t...

Posted by Keith McDevitt Nov. 15, 2020, 12:01 p.m. Wall assemblies - renovation 0 Responses

Can you install electric wire in floor heat cables and cork flooring?

...vapour barrier, then Ouellet OWC-M series electrical heating cable laid under 4inches of concrete and I will be on time of day rates so the concrete heats up at...

Posted by C Whitby Aug. 7, 2020, 6:43 p.m. Flooring and stairs 2 Responses

What windows should you use when trying to build a Passive House?

...vapour barrier in roof system ( Hot roof). Both exterior and interior will be clad with log siding. I wanted to use wood windows to maintain as much as a rust...

Posted by Raoul Lions Jan. 25, 2019, 2:18 p.m. Windows and doors 1 Responses

How do I stop a leak from my attic?

...vapour barrier but the topside of the ceiling has a silver face 5) a 3 inch duct ( crushed but no holes) from the bathroom on top of the insulation leading ou...

Posted by Markus Duess Feb. 11, 2019, 12:42 a.m. Roof assemblies - renovation 1 Responses

Does using T & G wood plank instead of drywall affect where we put the vapor & air barrier?

...vapour barrier, meaning vapour will move through it so slowly that it would qualify as a vapour barrier, but it is highly unlikely youll find a building inspect...

Posted by Sue Colbourne Nov. 9, 2019, 6:16 p.m. Walls and ceilings - interior surfaces 3 Responses