Vapor / Discussions

How do you insulate a 3 season cottage?

...vapor barrier material and location.

Posted by MARK E BROWN LLC Nov. 7, 2019, 4:57 p.m. Wall assemblies - renovation 0 Responses

What is the best way to deal with a drop ceiling in a high humidity room?

...vapor, condensation, evaporation - and 55% is above what I would hope to have wood framing at for extended periods.

Posted by steve Roberts Dec. 24, 2019, 8:01 p.m. Walls and ceilings - interior surfaces 1 Responses

How do you prevent mold in a finished basement?

...vapor barrier. The scariest part is that our house was only built in 2007! Now we've managed to strip all this smelly mess out, we tried to get quotes off con...

Posted by Brian Cole Nov. 22, 2019, 10:22 a.m. Basements improvements 1 Responses

Is it OK putting 1 inch of EPS under vinyl siding with no wall insulation good?

...vapor – yes, adding vapor impermeable materials to the outside of a wall assembly can cause problems during the cold season. But, the vapor permeability of EPS ...

Posted by Roger Smith Nov. 12, 2019, 6:34 a.m. Wall assemblies - renovation 7 Responses

How do you insulated a crawlspace with dirt floor?

...Vapor Barrier…. we would very much appreciate your input and advice. Cheers, Sal The first thing to mention is that if you have an uneven surface of solid roc...

Posted by sal Bellicoso Oct. 30, 2019, 4:56 p.m. Crawl spaces 1 Responses

What is the best way to insulate embedded joists in a basement Montreal Home?

...Vapor barrier. The basement is also dry and not humid. The joists are fully embedded inside the concrete slab. Hence, the floor above close to the baseboard i...

Posted by Emil Idf Jan. 7, 2020, 8:34 p.m. Foundation and basement improvements 1 Responses

Can you spray foam a house from the outside?

...vapor barrier all in one; going with celllulose will mean attention needs to be spent to keep it dry, make sure the wall is airtight, and that you have a vapor ...

Posted by Joan Lawrence July 11, 2019, 7:17 p.m. Wall assemblies - renovation 3 Responses

Halo Exterra rigid exterior insulation - has anyone work with it?

...vapor barriers, some with none and some with both. In cold climates you want vapor barriers on the interior, so you need to be careful not to apply a vapor-impe...

Posted by George Shannon Jan. 21, 2020, 3:39 p.m. Insulation and soundproofing 3 Responses

Can you put hemp insulation in an attic?

...vapor barrier if so, just wondering if you have an air barrier. If you don’t have a proper air barrier and you are removing all the insulation, then that is r...

Posted by Pamella Weatherly-Phillips Aug. 16, 2019, 11:49 a.m. Roof assemblies - renovation 1 Responses

Can I spray foam insulate from the outside?

I bought an old timer home on Gibsons, BC and the siding needs replacing. I want to use the opportunity to seal up and insulate the wall cavity once exposed. I...

Posted by Kurt Klischuk June 6, 2019, 8:56 a.m. Wall assemblies - renovation 1 Responses

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

...vapor 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 wou...

Posted by Iain Matheson Jan. 28, 2020, 10:38 p.m. Wall assemblies - renovation 1 Responses

Can I put a breathable peel and stick weather (air) barrier on the inside walls and ceiling?

...vapor barrier , so putting another vapor impermeable membrane (like 6 mil poly) right against it really wouldn't make a difference in terms of vapor migration t...

Posted by Anomika Singhn Oct. 1, 2018, 9:56 p.m. Air and vapour barriers 1 Responses

What is the best way to insulate rim joists with EPS and batts?

...vapor barrier and the thermal barrier. For an air seal, you may want to actually do that first, which could be a simple matter of applying caulking or acoustic ...

Posted by Steve J July 18, 2019, 3:53 p.m. Basements improvements 1 Responses

How do you fix high humidity levels in a basement?

...vapor barrier below the concrete floor, so even if you did insulate and seal the walls with a spray foam vapor barrier , it will likely continue to absorb moist...

Posted by JR Tadinac Aug. 21, 2019, 11:26 a.m. Healthy indoor air quality 3 Responses

Can you install foam boards directly against basement walls?

...vapor barrier) you would be ensuring that the wall cannot dry to the interior either, so what you would have is an ideal mold incubation chamber. If you are s...

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 4 Responses

Is the ZIP sheathing system good or bad for water control?

...vapor barrier paint here on our site or somewhere else? We tried it (we could because we did the exterior peel and stick membrane I mentioned above), it was par...

Posted by Trevor Prinz Nov. 26, 2019, 4:03 p.m. Walls and Roofs 4 Responses

What is the best way to insulate the basement of an old house?

...vapor barrier, but I would put the vapor barrier right against the foam and do the poly on top. And as for finishing the floor afterwards, yes you can, but I’...

Posted by Bryan Squirrell Jan. 14, 2020, 7:59 p.m. Basements improvements 1 Responses

Should I install basement drain tile vents?

...vapors into the basement? I don't fully understand the vent /drain proposal, what exactly is the contractor is proposing - do you mean there is to be a drain in...

Posted by gary taube Dec. 11, 2019, 10:14 p.m. Foundation and basement improvements 3 Responses