Exterior Walls / Discussions

What is a thermal break solution at a door threshold?

...exterior above grade walls will also be ICF with the addition of 3.5" of EPS panels on the exterior. We will have a concrete slab floor. What is the best meth...

Posted by Shaun B Sept. 13, 2020, 6:31 a.m. Slab on Grade 2 Responses

Should I vent the space between a block wall and vapor barrier?

...walls and had no barrior between them. I now am going to put 4 new walls up (same as before 3 exterior, 1 dividing). I use Drylok so far on all the exterior wal...

Posted by Nick Santore Oct. 10, 2020, 2:03 a.m. Basements improvements 1 Responses

How do can I insulate an existing basement floor from 1906?

...Walls go up 4 ft to a 2ft wide ledge and then the old stone foundation. 1 side is an exterior wall; 3 sides are crawl space beyond the stone. A lot of heat is l...

Posted by Cathy Gaskins Feb. 18, 2021, 11:24 a.m. Basements improvements 3 Responses

Why is there mold on particle board outside vapor barrier on new addition?

...exterior particple board. The are no leaks in the roof, or water running down the exterior walls. We wonder whether the mould is caused by condensation between ...

Posted by Christine ML June 7, 2020, 1:35 p.m. Wall assemblies - renovation 1 Responses

What is your recommendation for an air source heat pump?

...walls with spray foamed 9' walls, vaulted southern kitchen and living room with passive solar window design and 6' overhang on south& west walls. 1 1/2" R 7.5 s...

Posted by Martin Dandeneau July 9, 2020, 2:30 p.m. Heating and cooling 3 Responses

Any suggestions for improving insulation of a unique concrete building?

...exterior of the walls to protect the stone or concrete wall from freezing and cracking. Is that an option? If so read on here – How to properly insulate the e...

Posted by Andrew Hurst Feb. 25, 2021, 4:54 p.m. Wall assemblies - renovation 1 Responses

What is the best way to insulate a concrete block house?

...walls to crack. Concrete block walls are not as strong as poured concrete, since they are only held together by the mortar between blocks. Kent, did you ever co...

Posted by kent wardecke Oct. 17, 2020, 11 a.m. Foundation and basement improvements 2 Responses

Will spray foam on basement walls prevent condensation?

...exterior for cracks with none noted. It's seems it's coming up from the footings ? Would spray foaming the concrete walls, eliminate this issue ? mike What yo...

Posted by Michael Scott April 12, 2021, 9:17 p.m. Basements improvements 3 Responses

Where should I put a vapour retarder?

...exterior insulation to an old timberframe building. The interior walls will be wood paneling attached on the outside of the beams. For the next layer, I am thin...

Posted by Jeffrey Connell March 14, 2020, 4:25 p.m. Wall assemblies - new construction 4 Responses

What is the best exterior Wall and Roof Rigid Insulation for a barn renovation?

...exterior of the walls suffice? I do not wish to place insulation inside the barn as I wish to maintain the asthetic of the bones of the barn being fully expos...

Posted by Ron Busch June 27, 2020, 3:50 p.m. Wall assemblies - renovation 1 Responses

What is the best way to Insulate a basement and floor joists that are embedded into the concrete?

Hi, I have recently purchased a home in Toronto. We had some water issues and I've opened up the walls where I found some mould to see that the previous owners...

Posted by David Pereira April 28, 2020, 10:34 p.m. Foundation and basement improvements 2 Responses

How do I best insulate my century home from the inside?

...exterior walls of the house are: plaster/lathe - 2x4 wood studs (no existing insulation) - wood sheathing - brick veneer (no real airspace to speak of). The int...

Posted by Merner Row Design May 12, 2021, 12:22 p.m. 0 Responses

What is the best way to insulate a Metal structure from the Inside?

...exterior walls. Was planning on cathedral ceiling in most of the house (2,052 SF) and 9' ceilings over 685 SF. I'm so confused as to how this design passed titl...

Posted by Jacky Surber May 2, 2021, 4:09 a.m. Insulation and soundproofing 2 Responses

Can you use Foam boards on basement walls to stop condensation?

...exterior walls are fully framed about 2” away from the concrete. They have mineral wool in between the stud bays but not all dry walled yet. My issue is that si...

Posted by Chad Johnson Dec. 21, 2019, 7:59 p.m. Basements improvements 3 Responses

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

...exterior wall cavities, so I know there's insulation in the walls of the rooms whose walls we did not demo. There don't seem to have been any moisture problems ...

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

How do you do a vapor barrier in a dense pack cellulose wall?

...walls you show an exterior wall with 10" plate & sill and two rows of 2x4 studs. This looks fantastic, but the idea of vapour-permeable membranes on both sides ...

Posted by Ian MacKay July 26, 2018, 2:48 p.m. Wall assemblies - renovation 4 Responses

Can you insulate a concrete block basement walls with only rockwool?

...walls are concrete block and we have 2 sides done with interior plastic membrane to french drain and sump pump, one side exterior waterproofing, and one side wi...

Posted by Aarne Valikangas Jan. 1, 2021, 9:22 p.m. Basements improvements 1 Responses

Followup to the question How do you install Larsen Trusses on a home in Minneapolis?

...walls with oil paint, 2x4 studs, and is insulated with blown in cellulose. The exterior sheathing boards are1x's. I’ve done thermal scans of the walls. There do...

Posted by Ken Traefald Feb. 27, 2020, 1:49 p.m. Wall assemblies - renovation 1 Responses