Vapor barrier / Discussions

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

...vapor barrier) and difficult to escape on the other side (OSB) is likely part of the problem. The other thing at play here is the interior vapor barrier and air...

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

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

...barrier but not a vapor barrier, would the moisture only travel one way? I have read one option is to a/c the attic space, another is to install the 'peel and...

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

How do I get rid of moisture with cement floor crawl space that has a vapour barrier?

...barrier because of dry rot. Luckily no cracks in the foundation and floor joists are fine but I noticed that barrier is extremely wet. Running a dehumidifier ha...

Posted by Cindy Chatham 04 chatham Aug. 25, 2020, 4:47 p.m. Crawl spaces 1 Responses

What is your advice on exterior wall insulation for a tiny home?

...vapor barrier, I see no mention of insulation for you Tiny House, but there is a comma after vapor barrier so I’m wondering if you accidentally posted b...

Posted by Mitch Fowler Aug. 27, 2020, 7:04 p.m. Tiny house 1 Responses

Which is the best basement ceiling insulation?

...vapor barrier on the house side (not pointed downward toward the basement). I want to had additional insulation, especially over the unheated garage. Is wool in...

Posted by David Boone Jan. 9, 2021, 4:38 p.m. Basements improvements 0 Responses

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

...vapor barrier. I am concern that taping it outside might cause the vapor sandwich which I want to avoid. I am not sure what you have done for 2015 model home fo...

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

How do you best use polyiso insulation in a basement?

...vapor barrier & ½” gypsum drywall, sealed with drywall sealer and painted with vapor barrier paint. What problems do you see with this detail? Thank you Polyi...

Posted by Iain Matheson Jan. 24, 2020, 7:45 p.m. Basements improvements 1 Responses

How you vent a metal roof?

...barrier or vapor barrier. What is recommended at this stage of the install of the roofing assemby? Air or Vapor barrier? install two layers of 1 -1/2 inch...

Posted by Kim jarrett July 12, 2019, 12:15 p.m. Roof coverings 3 Responses

My window drips when I run my air conditioning. What is the fix?

...vapor barrier? Before coming up with a solution you really need to be sure of the problem. Poly vapor barriers can cause exactly such a problem in a house wit...

Posted by Sean Sullivan Aug. 27, 2020, 10:36 a.m. Heat pumps, geothermal and AC 5 Responses

How should I insulate basement Walls in climate zone 5?

...vapor barrier to the concrete or between the studs and drywall and the mineral wool has no vapor barrier. Is this space between concrete and studwall a terribly...

Posted by Chad Johnson March 25, 2019, 8:33 p.m. Basements improvements 1 Responses

What type of insulation under an outdoor deck frame with 2x8s?

...vapor before the OSB? I read the vinyl floor act as a Vapor barrier. The walls I will go 2 inch, vapor and pine. The celling is all pine finish. Thanks fo...

Posted by Eric Dalpe Sept. 15, 2020, 9:13 a.m. Wall assemblies - renovation 4 Responses

Is spray foam a good way to insulate a house from the exterior?

...barrier and vapor barrier . And you are wise to consider the toxicity of it, spray foam has until recently been among the most harmful types of insulation in te...

Posted by Simon Levitt Dec. 21, 2020, 2:14 p.m. Wall assemblies - renovation 1 Responses

Can you create a passive wine cellar by insulating and air sealing a crawl space?

...vapor barrier? If I'm not mistaken, the house interior would be a source of moisture into the wine cellar. Should I attempt to put a vapor barrier on the hous...

Posted by JC Wong April 2, 2021, 6:50 p.m. Crawl spaces 2 Responses

How do you prevent mold in a finished basement?

...vapor barrier. The scariest part is that our house was only built in 2007! Now we've managed to strip all this smelly mess out, we tried to get quotes off con...

Posted by Brian Cole Nov. 22, 2019, 10:22 a.m. Basements improvements 1 Responses

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

...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 nailed th...

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

What's the best way to seal a crawl space and insulate?

...vapor barrier with stone underneath and the radon pipe runs through the space as wel and out through my roof. I was thinking about putting foam board on the blo...

Posted by Steven Johnston Feb. 23, 2021, 12:35 p.m. Crawl spaces 1 Responses

Can Rockwool be installed over Type II EPS?

...vapor barrier, 2x6 wall with fiberglass insulation, 5/8 plywood, 2 1/2 " Type II EPS. Tyvek, siding. I intend to remove the EPS and install a self-adhering WRB ...

Posted by Brian Bonnell March 30, 2020, 11:04 a.m. Wall assemblies - renovation 1 Responses

How do I condition my crawl space with a dirt floor?

...vapor barrier in the sand floor. i will then have to heat that crawl and put an fan it exhaust the air to outside. what should I do? and can the closed cell opt...

Posted by Ryan Reichelt Nov. 27, 2020, 12:25 a.m. Crawl spaces 0 Responses