Air barrier Condensation / Discussions

Can I put a breathable peel and stick weather (air) barrier on the inside walls and ceiling?

...air barrier that will still allow moisture to dry on the inside as to not have 2 vapour barriers, but stop any air and thus condensation. There would be no prob...

Posted by Anomika Singhn Oct. 1, 2018, 9:56 p.m. Air and vapour barriers 1 Responses

What is the best to insulate metal structures for all seasons?

...air barrier, preventing air flow, but allowing moisture to dry. I understand that any number of air barrier is acceptable, but would inner, outer, or both be pr...

Posted by Morgan Aldridge Jan. 19, 2019, 1:53 a.m. Wall assemblies - new construction 1 Responses

What is the best way to deal with a drop ceiling in a high humidity room?

...air barrier and possibly paint it to also be a vapor barrier. Then use unfaced mineral wool or fiberglass batts. But the tongue and groove boards would be naile...

Posted by steve Roberts Dec. 24, 2019, 8:01 p.m. Walls and ceilings - interior surfaces 1 Responses

How can I solve a moisture problem in attic from 1941 home?

...air barrier vs vapor barrier concepts. My house is above a dirt crawl space. And we have a very high water table at 18 inches!!! It is definately a part of my s...

Posted by Rachel Katz June 8, 2019, 4:06 p.m. Air and vapour barriers 0 Responses

How do you remove water droplets from under a crawl space vapor barrier?

...barrier? Water is acculating on the dirt side of the vapor barrier. If I crawlspace has water droplets forming under the poly vapor barrier (on the dirt side)...

Posted by Paul Racioppo Feb. 7, 2020, 3:49 p.m. Crawl spaces 3 Responses

What is the best way to insulate a home from the outside?

...air barrier. If you do add new plywood sheathing, you could just tape the joints and it will act as your air barrier Read all about how to insulate exterior w...

Posted by Sylvie Gagnon Dec. 12, 2017, 11:58 a.m. Wall assemblies - renovation 1 Responses

What is the best way to insulate a crawlspace to keep humidity down and stop odors?

...air can lead to condensation on those cold surfaces, I’d consider closing it up and running a dehumidifier. What climate zone are you in Dave? That may help us ...

Posted by Dave Bell Oct. 24, 2019, 3:57 p.m. Crawl spaces 3 Responses

Should I install basement drain tile vents?

...air pass into the wall assembly to let moisture evaporate? A properly built wall should not have a condensation issue, so is this contractor about to finish y...

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

Can you Insulate a Cinder block basement foundation with Rockwool?

...air space regardless of how you space it, and air spaces are always good to have. But, it is also very important to make it airtight. If you have a Basement wal...

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

How do you do a Vapour Barrier in a Dense Pack Cellulose Wall?

...air conditioning. Are you absolutely sure that no vapour barrier is okay? How do I convince the building inspectors? I can see how it doesn’t exactly look like ...

Posted by Ian MacKay July 26, 2018, 2:48 p.m. Wall assemblies - renovation 3 Responses

How do you insulate a crawlspace?

...air can condense on the cooler surfaces. Another possible cause of the moldy insulation is if you didn’t include a vapor barrier on the warm side of the insulat...

Posted by Drew Weistend Nov. 14, 2017, 9:22 a.m. Crawl spaces 1 Responses

What windows should you use when trying to build a Passive House?

...barrier in roof system ( Hot roof). Both exterior and interior will be clad with log siding. I wanted to use wood windows to maintain as much as a rustic feel...

Posted by Raoul Lions Jan. 25, 2019, 2:18 p.m. Windows and doors 1 Responses

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

...condensation in the Rockwool in a house like mine? I found online pricing at Universe Corporation for the Delta Vent SA wrap, at $569 per 561 sq. ft rolls. I...

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

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

...air barrier, then install Larsen trusses, cellulose and a breathable house wrap membrane you would be far better off than the idea of an exterior vapor barrier....

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

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

...air barrier and not the vapor barrier that is compromised, though it may well be the same product so that is kind of splitting hairs. What is almost certainly...

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

How can I get rid of moisture between the vapor barrier and the insulation in a basement?

...condensation on the inside of the vapor barrier i.e. the side closest to the insulation. The vapor barrier is dry to the touch from inside the basement. The ans...

Posted by David Mitchell Aug. 14, 2018, 6:32 p.m. Basements improvements 2 Responses

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

...air infiltration. I feel good that this provide enough air block to prevent condensation. My county has no inspections on anything you do within your own ho...

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

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

...air space , is the wall still under construction and it was frost forming on the exterior sheathing?

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