Exterior Walls / Discussions

What are the best Wall and Roof insulation choices and rain screen?

...Walls will be insulated with sprayfoam vs rockwool (hard to get contractor out of convenient and familiar choice) and on exterior will be covered in WRB by Adhe...

Posted by Valeriy Kraydman March 15, 2021, 3:32 p.m. 0 Responses

How do I stop a leak from my attic?

...walls of two opposite exterior walls. I checked the attic and found 1) frost of the underside of the roofing plywood 2) insulation stuffed to the soffit and t...

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

How do you fix radon and water infiltration in a dry stone foundation?

...exterior water ingress can only be managed so much by gutters/french drains, given grade against mountain. There's no appetite for the cost of a full excavation...

Posted by john flannery July 14, 2020, 4:24 p.m. Foundation and basement improvements 5 Responses

What is the best way to renovate a basement after a flood?

...walls was left in place, but protected with Blueskin tape. We now have to finish the walls and seal or otherwise treat the concrete floor. I understand now th...

Posted by Wren Toombs June 18, 2018, 10:52 a.m. Foundation and basement improvements 2 Responses

Basement reno - How do I effectively insulate my basement?

...exterior foundation walls? Also, will there be an issue with thermal bridging or vapour with having one insulation system (old) adjacent to another (new) and ...

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

Where does a vapour barrier go when building a shed in southern Ontario?

...walls with 1/2 plywood exterior sheathing, R14 roxul batts and the infamous 6 mil poly. The ceiling is R40 pink as I got a good deal, and figure if it cost the ...

Posted by Charley Nelson Nov. 5, 2020, 10:09 a.m. Wall assemblies - new construction 1 Responses

Can I spray foam insulate from the outside?

...exterior walls. Not only does it keep air and moisture out, but it also makes the exterior walls more structurally sound, adding strength to a home and making i...

Posted by Kurt Klischuk June 6, 2019, 8:56 a.m. Wall assemblies - renovation 3 Responses

How do you install windows with SIP exterior insulation?

Is it a good idea to add comfort board or similar to outside of SIP, and if so how do u deal with window set back?

Posted by tony wolff March 8, 2021, 4:18 p.m. Walls and Roofs 0 Responses

Is it a good or bad idea to spray foam directly on the interior of shiplap siding?

...exterior walls of a home to improve energy efficiency, you have to make sure walls can dry. Applying spray foam directly to the back siding of your cladding doe...

Posted by MITCHELL KOCH Aug. 21, 2020, 3:49 p.m. Exterior cladding 1 Responses

How can I insulate an interior back wall that is NOW an exterior back wall?

...exterior porch built. Now the back wall to the building is letting in cold air. I need to insulate the building. When renovating exterior walls you need to obse...

Posted by Sabrina Ross Sept. 21, 2020, 10:55 a.m. Wall assemblies - renovation 1 Responses

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

...exterior walls for the main reason that moisture moves right through it, so you won’t accidentally be trapping moisture inside walls. It is also hydrophobic, me...

Posted by George Shannon Jan. 21, 2020, 3:39 p.m. Insulation and soundproofing 6 Responses

How do you insulate a 70s home with 2x4 walls that has fiber glass insulation?

...walls . And here's another page all about how best to insulate exterior walls from the outside on older homes . Have a read over that to get some ideas and send...

Posted by Mark Aussenegg Nov. 26, 2018, 6:49 p.m. Wall assemblies - renovation 1 Responses

What do you think of Legalett Wall Insulation?

...exterior Insulation These are panels that come in 4x8 sheets up to 8 inches thick with a metal rail in the middle to secure them to the walls. And you are rig...

Posted by Igal H Aug. 19, 2020, 3:52 p.m. Walls and Roofs 1 Responses

Can basement walls to dry to the inside with foam board?

...walls. From all of my reading it says that your basement foundation walls can only dry to the inside. If I put foamboard on the concrete and seal it everywhere,...

Posted by Tim Hanrahan Aug. 20, 2020, 12:34 a.m. Basements improvements 6 Responses

What is the best way to do wall construction using Charred Cedar Siding?

...exterior cladding. So what is important is that you don’t fall into some of the easy traps that a lot of builders seem to do, that leads to an unnecessarily sho...

Posted by Dobie Cheung June 6, 2020, 10:44 p.m. Exterior cladding 1 Responses

Can you use Hemp insulation to insulate a metal structure?

...exterior walls you will have unnecessary heat loss . Read more here about how to reduce thermal bridging . There are cases, like yours I would say, where insula...

Posted by Jen Moffat Sept. 23, 2020, 1:16 p.m. Insulation and soundproofing 1 Responses

Which is the best exterior insulation board to make a cottage 3 season?

...walls are toung and groove pine. No heat no insulation just the wainscotting walls. The interior frame ar 2 by 4's. we wish to live there through the summer fro...

Posted by Sharon Challingsworth April 23, 2021, 7:16 a.m. Insulation and soundproofing 1 Responses

What kind of insulation do you recommend to put on my exterior sheet rock wall?

...exterior walls of older homes has to be done carefully so you don’t trap moisture. I would recommend you use some sort of mineral wool / rock wool insulation ...

Posted by Uwe Thomas May 22, 2020, 10 p.m. Insulation and soundproofing 1 Responses