Wall / Discussions

Can you install foam boards directly against basement walls?

...wall in your case would be mineral wool , Rockwool and then drywall overtop. a 6 mil poly barrier before drywall will prevent your wall from drying, hopefully y...

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 16 Responses

How to insulate an apartment you don't own?

...wall and reinsulate but winter is coming and drafts are already getting in. Is there anything I can do to prevent that without upsetting my landlord? The wall I...

Posted by Teresa Cunningham Oct. 21, 2019, 3 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

What is the best way to put siding on an older home without causing it to rot?

...walls are constructed of 2x4 studs with no insulation and lumber sheathing on the inside and outside of the wall. The interior of the walls is lathe and plaster...

Posted by Richard Reinert April 18, 2021, 12:32 p.m. Wall assemblies - renovation 0 Responses

How do you improve an old block foundation with no insulation or exterior moisture barrier?

...walls 30-32" above grade which slopes down and away from foundation/wall intersect. Basement walls parged and painted with mold resistant paint; floor painted. ...

Posted by Wilhelmina Lange March 11, 2021, 4:19 p.m. Foundation and basement improvements 2 Responses

Why do I have condensation on my ceiling and how do I fix it?

...wall and into the soffit, so no soffit air would enter the roof cavity. I removed the batts from the soffit, including the portion over the exterior stud wall w...

Posted by bruce chambers Nov. 5, 2021, 5:42 p.m. Walls and Roofs 3 Responses

Should I install basement drain tile vents?

...wall junction to drain moisture condensate from basement walls through the floor to the drain tiles. He claims this prevents mold from forming behind finished w...

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

How should I install XPS insulation in a basement?

...wall and seal it to the first joist (Option 2) do I need to insulate the rim joist along that wall? (I might put some mineral wool insulation in the space to ke...

Posted by Ken Hunold Dec. 27, 2020, 7:22 p.m. Basements improvements 0 Responses

What is the best way to build a slab on grade on bedrock?

...wall down to bedrock be a better approach - before pouring the slab? Building a slab on grade on bedrock is nice and solid, so as long as any water around the p...

Posted by peter owen Oct. 31, 2019, 3:33 p.m. Slab on Grade 1 Responses

Can you use a vapour retarder paint on the ceiling instead of using a poly vapour barrier?

...walls? Vapour barrier paint (or Vapor barrier paint in the U.S. ) is more of a solution for walls rather than ceilings to prevent the indoor vapour drive during...

Posted by Anwas Qwelten June 8, 2019, 3:56 p.m. Air and vapour barriers 2 Responses

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

...wall system as a double stud wall, (see more here) which are ideal for improving wall insulation when renovating homes & for building new homes with high perfor...

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

Why are half of my basement walls are not insulated and should I add insulation?

...walls are left uninsulated. I have a wood framed 2x4 wall an inch off the concrete. How should I insulate the bottom before putting up drywall? Thanks

Posted by Jake Morel Dec. 28, 2020, 8:58 p.m. Basements improvements 0 Responses

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

...wall that is insulated to about 3.5" X 4.6 R = 16 added to the wall. It will save the lath and plaster walls (which is a hole wack of work to remove). Plus the ...

Posted by Merner Row Design May 12, 2021, 12:22 p.m. Roof assemblies - renovation 1 Responses

How do you insulate concrete basement walls and avoid mould?

...wall. I was hoping to nail the Rock Wool Comfort 80 Board to the entire wall, and then when the time is right frame and finish. If I’m getting this right, you h...

Posted by William Hunter Feb. 22, 2021, 11:40 a.m. Basements improvements 2 Responses

How do you prevent moisture from getting into a basement footing?

...walls are installed. So once the concrete walls are poured, moisture can’t pass between the two.

Posted by Frank Liu June 24, 2020, 9:58 a.m. New foundations and slab-on-grade 1 Responses

What is the best way to insulate the exterior of a post and beam timber frame with rigid insulation?

...Wall currently has 3/4" Shiplap pine sheathing over the Girts. Looking at emplacing 4" R20 Rigid XPS Panels seam taped. Those would be strapped to the wall with...

Posted by Ron Busch Nov. 12, 2021, 2:53 p.m. Wall assemblies - new construction 0 Responses

Can I spray foam insulate from the outside?

...walls of homes here Let us know more details about our wall assembly and what is behind the siding if you'd like, and we may be able to be more helpful. Ext...

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

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

...walls instead of drywall (new build with plywood exterior sheathing and Tyvek - which will eventually have cedar shingles). What's the best thing to use for air...

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