Seal / Discussions

How do you insulate a cottage crawlspace and install radiant floor heat?

...seal the complete cottage foot print when there is not enough room to get under the building? How would moisture affect this area and how would be the best way ...

Posted by Todd hall June 28, 2020, 8:36 a.m. Crawl spaces 1 Responses

Can you provide Crawlspace Insulation Design Assistance?

...seal and to prevent the fabric from tearing away from the staples. I was then planning on the 6 mil poly install on the entire crawlspace floor. We do have some...

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

How do I stop a leak from my attic?

...seal house-to-attic penetrations like the bathroom vent, and wiring, insulate the bathroom vent. Any thoughts? Frost buildup in an attic is a result of moistu...

Posted by Markus Duess Feb. 11, 2019, 12:42 a.m. Roof assemblies - renovation 1 Responses

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

...seal walls and we are leaving plenty of air gaps near unfinished ceiling where floor joists are. We would have a dehumidifier. Anything in here that jumps out a...

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

Should I put foam boards right against my basement wall or leave an air gap?

...seal it. Rain does not get directly on the walls and the crack was so small that nothing comes through. Sorry for the rambling but I wanted to give you as much ...

Posted by Elijah Hargett Jan. 9, 2021, 5:31 p.m. Foundation and basement improvements 4 Responses

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

...sealed with a plastic vapor barrier, but not drywalled. I am led to believe that, during construction, the builder didn't immediately seal around the basement...

Posted by David Mitchell Aug. 14, 2018, 6:32 p.m. Basements improvements 34 Responses

What is the best way to renovate a basement after a flood?

...seal or otherwise treat the concrete floor. I understand now that I should've removed the 2x4 stud wall before pouring the new slab. I also see that it would ha...

Posted by Wren Toombs June 18, 2018, 10:52 a.m. Foundation and basement improvements 2 Responses

Basement reno - How do I effectively insulate my basement?

...sealant around gaps in the rim joist and sill plate Or Expanding foam? Next would I fill rim joist cavity with Rockwool, then EPS + Drywall? or Just sandwich+se...

Posted by Steve J Feb. 13, 2019, 10:25 p.m. Foundation and basement improvements 2 Responses

Do you have recommendations for radon sealing basement concrete & installing new flooring?

...seal the basement concrete floor against radon (and fill any cracks) prior to laying new flooring. The current slab I do not believe has any vapour barrier, jus...

Posted by M N Sept. 1, 2020, 2:20 p.m. Basements improvements 1 Responses

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

...seal the edges of the poly to the wall plates and install the Larsen Trusses / Cellulose insulation. I’m still looking at the Rockwool Comfort Board 80 option...

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

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

...sealed crawlspace is fine, and in reality no space will be perfectly air-sealed no matter how we try, air pressure will find some leaks, so the air will be chan...

Posted by JC Wong April 2, 2021, 6:50 p.m. Crawl spaces 5 Responses

What are the best air-quality solutions for processing cigarette smoke?

I purchased a 2nd-story townhome and, only after moving in, I discovered cigarette smoke coming in through the framework from the downstairs neighbor. Outside ...

Posted by Jordan Hoffman March 18, 2021, 2:37 p.m. Healthy indoor air quality 0 Responses

Is sealing basement concrete floor against radon a good idea?

...seal it. . Here is a page on our favourite concrete sealing method - How to seal and polish concrete floors - non toxic silicate sealer

Posted by Tim Hanrahan Sept. 18, 2020, 3:11 a.m. Radon in Homes - Mitigation 3 Responses

How do you fix radon in a basement?

...seal out any radon. Seems there should be a system of some sort you can put over the slab... to kind of suck any permeating gases out before they enter the livi...

Posted by Ej Weiss Aug. 11, 2021, 7:14 p.m. Radon in Homes - Mitigation 3 Responses

Are mice droppings and urine toxic?

...seal those openings to prevent it from happening in the future. Before you begin re-insulating, note that pink fiberglass insulation is not the ideal insulati...

Posted by JT Nov. 14, 2017, 4:49 p.m. Pest control 1 Responses

What is the best way to insulate rim joists with EPS and batts?

...seal, you may want to actually do that first, which could be a simple matter of applying caulking or acoustic seal to the rim joists to stop air leakage while y...

Posted by Steve J July 18, 2019, 3:53 p.m. Basements improvements 1 Responses

What is the best foam board insulation under drywall?

...seal. One thing I would point out, is that for the effort of going around the house with all the rigid boards, is that a 2 inch panel instead of 1 inch would ...

Posted by Wesley Pracht Jan. 11, 2020, 8:10 p.m. Wall assemblies - renovation 1 Responses

What materials should I use for a small plumbing job?

...seal in the process. Installation is easy and even faster than conventional PEX done with a crimping tool. See a video of the expander tool in action.

Posted by H Davis Nov. 28, 2017, 1:30 p.m. Hot water 1 Responses