Sheathing / Discussions

What kind of non-toxic exterior sheathing can be used in place of plywood?

...sheathing (on top of ext stud wall, underneath finish ext siding) has formaldyde, glues all of which are toxic. What can I use that will be non-toxic, or at lea...

Posted by pier charter June 4, 2020, 1:12 p.m. Wood and organic materials 0 Responses

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

...sheathing with a fully adhered sheathing membrane? ZIP Sheathing is a pretty hot topic with some differing opinions. The ZIP System is a structural sheathing in...

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

Combo structural sheathing, WRB and thin insulation panel in Ontario?

...sheathing it, and double strapping it for a rear-vented vertical board and batten exterior. My research into potential sheathing has turned up a couple innova...

Posted by Steve Bull Jan. 14, 2020, 6:06 p.m. Walls and Roofs 3 Responses

What is safer than OSB for someone with multiple chemical sensitivities?

...sheathing? We prefer to use Plywood instead of OSB as sheathing, read more here . The latest Ecohome demo house is targeting LEED Platinum, and has extremely ...

Posted by Ian Smith April 27, 2020, 1:01 p.m. Healthy indoor air quality 1 Responses

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

...sheathing. Do you mean to strip off the sheathing boards? If so, is it instead possible to nail the plywood over the existing sheathing? At that point you could...

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

How can I prevent animals from getting behind the siding on my house?

...sheathing and siding, but I want that added to help with moisture control. What is the best way to prevent rodents from getting into that space and using it as ...

Posted by Connie Curtin Feb. 22, 2020, 1:52 p.m. Pest control 0 Responses

How do you insulate a 3 season cottage?

...sheathing boards are the finished interior walls. The clapboard siding and wood trim and windows will be removed and replaced. Clients would like to add a littl...

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

Can I add Larsen Trusses and cellulose to 1920s House in Minneapolis?

...sheathing. Do you mean to strip off the 1x8's sheathing boards? If so, is it instead possible to to nail the plywood over the existing sheathing? At that point ...

Posted by Ken Traefald Feb. 17, 2020, 2:30 p.m. Wall assemblies - renovation 3 Responses

Can you spray foam a house from the outside?

...sheathing and doing spray foam from the outside. It seems we could also drill holes and blow spray foam in without removing the sheathing. Now that the blowing ...

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

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

...sheathing and Tyvek - which will eventually have cedar shingles). What's the best thing to use for air and vapour barriers and where should we put them in the w...

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

Do I need a standard 6 mil poly vapor barrier with dense cellulose exterior wall?

...sheathing with paper wrap, followed by shingles, then 1/2 celotex foam board and vinyl siding installed in the 1980's. No rot or leakage is visible from the ins...

Posted by jeff Chormann May 1, 2020, 9:18 a.m. Air and vapour barriers 2 Responses

What is your experience and thoughts on pre-fab wall assemblies?

...sheathing as well as ZIP structural sheathing ? Cheaper than two layers of sheathing would be swapping one out for an exterior peel and stick WRB membrane . A...

Posted by Shaun B Nov. 12, 2019, 4:16 p.m. Wall assemblies - new construction 2 Responses

Spray Foam for basements, which of the different types are best environmentally?

...sheathing covered in spray foam is none other than a landfill unfortunately as it won’t be able to be recycled. So, we love the new blowing agents, but we still...

Posted by Rose Adams Jan. 9, 2020, 9:33 a.m. Insulation and soundproofing 1 Responses

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

...sheathing then choose an insulation material, weather barrier, strapping and new siding.

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

Do frost lines where studs are on a wall show a failure of spray foam insulation?


Posted by Gerald Crozier July 22, 2019, 10:24 p.m. Insulation and soundproofing 1 Responses

Can I spray foam insulate from the outside?

...sheathing, so you would need to re-install sheathing or at least wind bracing if we are understanding you correctly. To re-install siding afterwards you would b...

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

How do you seal windows from the exterior for water and air but not create a vapor seal?

...sheathing on the exterior. With our window installation technique we had the same: a vapor / air barrier (tape) on the interior, insulation in the cavity, and w...

Posted by Piyush Prince Nov. 7, 2018, 12:10 a.m. Windows and doors 1 Responses

Should a Vapor Barrier be installed over Exterior Grade Plywood?

I have a 40 year old cottage in the Kawarthas. It has exterior grade Plywood. The walls are insulated with traditional Fiberglass Pink. I will be putting solid...

Posted by Michael Klauck March 6, 2020, 1:24 p.m. Air and vapour barriers 1 Responses