Sealing concrete / Discussions

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

...concrete slab for new flooring with regards to both radon mitigation and the material health - low VOCs. The basement is from a 2012 build -- the slab is 4” c...

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

Alternativ for Garage Epoxy - Considering both look & economically?

...concrete floor sealer that is non-toxic and durable would be silicate densifier sealers, see more here – How to seal and polish concrete floors with non toxic...

Posted by Kamatchi Kavi Feb. 21, 2021, 7:58 p.m. Paints, finishes and natural coatings 4 Responses

Is sealing basement concrete floor against radon a good idea?

...sealing my floor is worth it and what the general thoughts are regarding sealing bare concrete? It is always wise to check a home for radon gas contamination an...

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

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

...concrete walls and a cement floor, insulation between the floor joists and has 3 - vents to the outside. I am thinking of 1" foam boards on the walls, sealing t...

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

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

...concrete. Batting added after framing and inside rim/cripple wall cavities. 3) Sealing & batting first, then 2" EPS. EPS continues vertically straight from sl...

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

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

I have a 3 foot and 4 foot drop level crawl with a part basement attached. 650 square feet. It has sand floor and below grade concrete walls. the access to the...

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

How do I insulate my half below grade basement?

...concrete basement. No exterior insulation, I'm guessing no exterior sealing. But dry dry dry inside. I like the idea of the 2" XPS with 4" studs and roxul ins...

Posted by tom mckeand Oct. 14, 2019, 11:01 p.m. Basements improvements 1 Responses

What do I in my basement where new insulation meets old?

...concrete is extremely cracked then you likely wouldn’t have a lot of air leakage so I wouldn’t worry to much about sealing it. Keep in mind that the wall asse...

Posted by Steve J July 20, 2019, 10:01 p.m. Basements improvements 2 Responses

Basement reno - How do I effectively insulate my basement?

...concrete foundation. Floor joists sit atop the foundation wall on a rim joist wood-sill assembly (not imbedded in concrete). I have removed existing drywall, 2x...

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

What is the best way to finish a concrete floor?

...concrete has sufficiently dried or if the concrete is not well-sealed from the ground it will absorb moisture over time and possibly cause problems, meaning the...

Posted by Steven P. Aug. 17, 2017, 3:04 p.m. Flooring and stairs 1 Responses

Can basement walls to dry to the inside with foam board?

...concrete and seal it everywhere, when moisture comes through the concrete it will have nowhere to go. Perhaps I am missing something here but seems to me over...

Posted by Tim Hanrahan Aug. 20, 2020, 12:34 a.m. Basements improvements 6 Responses

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

...concrete floor and up against the wall as well. If so, it would be best to remove it if you still can since the concrete will continue to absorb moisture and in...

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

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

...sealing the rim joists. But does the batt insulation stay or go if I do that? Will that help with humidity throughout the home? Will it help with temp in the fi...

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

Should I build a basement or slab on grade?

...concrete slab floors in the north east? What ive read is that due to concrete thermal conductivity concrete will always feel cool to the touch if set at a comfo...

Posted by robert baker March 27, 2020, 6:54 p.m. New foundations and slab-on-grade 9 Responses

How do you improve an old block foundation with no insulation or exterior moisture barrier?

...sealing insulation and framed walls against concrete. Concrete is wet, so are unprotected cinderblock walls, and the poly prevents the wall from drying. As fo...

Posted by Wilhelmina Lange March 11, 2021, 4:19 p.m. Foundation and basement improvements 2 Responses

How do you fix a moisture problem in a finished basement?

...concrete will continue to wick moisture from the ground. But the biggest problem you have, and that all basements have, is a vapour barrier sealing organic ma...

Posted by Margo MACFARLANE Oct. 28, 2019, 10:24 a.m. Foundation and basement improvements 1 Responses

How do you fix radon in a basement?

...concrete floor, then sealing all sides and lay flooring on top, but that will be a lot more work and disruption than sub-slab depressurization and likely less e...

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

Will I save energy by lowering my thermostat at night?

...concrete slab floor, bricks or masonry on the interior etc) it will take a long time to cool off, and consequently a long time to warm up again, so again it may...

Posted by Ryan Peterson May 1, 2018, 11:51 a.m. Heating and cooling 4 Responses