Membrane / Discussions

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

...membranes is to always have a positive lap when joining two pieces of membrane together; However, this is not possible when just slapping on a piece of special ...

Posted by Trevor Prinz Nov. 26, 2019, 4:03 p.m. Walls and Roofs 5 Responses

How do I waterproof a foundation from the inside?

We have a self-adhesive membrane on the outside wall of our foundation but the water enters through the joint between the walls and the floor. How can I waterp...

Posted by Kurt Brenner Nov. 14, 2017, 9:47 a.m. Foundations and Basements 1 Responses

Can you provide Crawlspace Insulation Design Assistance?

...membrane products stapled to the underside of the joists; I was planning on securing the membrane with firring strips to get a better seal and to prevent the fa...

Posted by Randy Christensen Dec. 10, 2019, 12:17 p.m. Crawl spaces 1 Responses

is a double vapor barrier on a South Florida roof bad?

...membrane under roof panels but have been advised I would be creating a 'double vapor barrier' potentially trapping moisture in the roof deck causing long term i...

Posted by Arthur Moore April 6, 2020, 12:57 p.m. Roof assemblies - renovation 0 Responses

Is There a Difference Between an Air Barrier and vapor barrier?

...membrane. Is there any other option available to me? Your diagnosis seems pretty accurate with the exception that it would technically be the air barrier and no...

Posted by Sherri Mccormick Aug. 17, 2018, 3:24 p.m. Roof assemblies - renovation 3 Responses

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

...membrane to french drain and sump pump, one side exterior waterproofing, and one side with no waterproofing but also no moisture penetration issues. Our plan af...

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

How do insulate a basement slab that is sloped ?

...membrane, 2" XPS and osb/plywood achored with tapcons. The problem here is that there's a significant slope to a central drain (4" at the lowest). I will be rem...

Posted by Louis-François Lapointe Nov. 11, 2020, 10:34 a.m. Basements improvements 1 Responses

Do you have on a category on insulating vans?

...membrane. There are two companies we know of that have switched to more environmentally friendly blowing agents , Elastochem and Demilec. And below is a link ...

Posted by chantal fortier April 14, 2019, 2:08 p.m. Tiny house 1 Responses

Should I bother testing for radon in a gutted and uninsulated house?

...membrane for added protection, but at the least a 6 mil poly will go a very long way. The thing is, as you realize, it is virtually impossible to know ahead o...

Posted by Luba Sharapan March 27, 2021, 12:04 p.m. Radon in Homes - Mitigation 3 Responses

What is the best practice to insulate a crawl space floor?

...membrane on the dirt to keep moisture in the ground. Are you by chance laying down any new flooring on it? Wondering if you had a plan for an air and vapor ba...

Posted by austin Fanning March 16, 2020, 8:55 a.m. Crawl spaces 4 Responses

Should you seal all rods and penetrations for a radon barrier?

...membrane. And by that, please know I mean ‘do your best’ of course, if you miss one or something it isn’t the end of the world, it’s a cumulative effect. Here i...

Posted by D H Dec. 25, 2020, 9:08 p.m. Healthy indoor air quality 1 Responses

Can you Insulate a cinder block basement foundation with Rockwool?

...membrane directly against the concrete block foundation, with a channel at the bottom for drainage, either a surface drain in the concrete, or we would remove t...

Posted by Victor B June 19, 2019, 11:41 p.m. Basements improvements 5 Responses

Will spray foam on basement walls prevent condensation?

...membrane on the exterior as well? It would look like this waterproofing basement dimple membrane. You say it’s a new home, are you the original owners and wha...

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

What is the process to seal a house using Aero barrier spray?

...membrane and tape? Or is this for homes that have a blower door test and fail? And, if getting rid of the membrane and tape, on balance what is the cost differe...

Posted by Santiago Pacheco Feb. 13, 2020, 11:06 a.m. Air and vapour barriers 3 Responses

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

...membrane, and fill it with dense packed cellulose to prevent settling before putting shiny new siding on.

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

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

...membrane. Read more here about removing radon gas from crawlspaces and basements . The problem is then that you really shouldn’t walk on it much or risk perfo...

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

When using larsen trussees, what is the maximum spacing between TJIs

...membrane to the outside of the trusses and then 2x4 horiontal strapping so siding shhould have lots of support. i don't have much experience with dence packing ...

Posted by steve outlet March 6, 2020, 12:39 a.m. Wall assemblies - renovation 3 Responses

What is the best way to insulate the exterior walls of an older home?

...membrane on the boards, followed by 2 inches of insulation, strapping and siding. That will only ad up to about R8, which is a lot better than you have, if yo...

Posted by Geoff Kavanagh June 30, 2020, 4:01 p.m. Wall assemblies - renovation 1 Responses