Concrete / Discussions

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

What is your opinion on filling block foundations with concrete?

...concrete for strength, in addition to repairing the grout. Thanks in advance Hi Nina, That's a structural question that we would be unable to answer unforta...

Posted by Nina Hartt March 21, 2019, 8:06 a.m. Foundation and basement improvements 1 Responses

Is there a concrete admixture to prevent water leaks?

...concrete wicking moisture' and 'water leaks'. Also wondering if perhaps this is a new construction or existing, as an 'admix' would be added to the concrete bef...

Posted by Frank Liu July 4, 2020, 6:03 p.m. Waterproofing and drainage 2 Responses

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

What is the best way to insulate a concrete block house?

...Concrete block walls are not as strong as poured concrete, since they are only held together by the mortar between blocks.

Posted by kent wardecke Oct. 17, 2020, 11 a.m. Foundation and basement improvements 1 Responses

How do you polish a concrete slab to be a finished interior concrete floor?

...concrete floor that looks nice. The concrete was poured 8 months ago, and we are noticing some divots. We live on a remote island with no specific concrete floo...

Posted by Betsy Lund May 20, 2020, 2:13 a.m. Flooring and stairs 1 Responses

Is a vapor barrier necessary under a concrete slab with foam insulation and if so, where does go?

...concrete. In our LEED V4 Platinum Edelweiss Demonstration house we installed a 10-mil underslab vapor barrier from WR Meadows, we found it to be extremely pun...

Posted by Grady 22 Aug. 17, 2019, 12:19 p.m. Air and vapour barriers 3 Responses

How well does the Legalett air heated floor work when pouring concrete?

...concrete mix to ensure no air pockets? What is the thickness of the pipe- sch40 or more like sdr26? How far is top of pipe from top of concrete? Yes, with the L...

Posted by Israel Sword March 28, 2020, 6:26 a.m. Slab on Grade 1 Responses

What is a thermal break solution at a door threshold?

...concrete slab floor. What is the best method to support very heavy sliding doors and eliminate thermal bridging? I really like the Legalett Thermasill product...

Posted by Shaun B Sept. 13, 2020, 6:31 a.m. Slab on Grade 2 Responses

How much insulation should I install underneath my concrete slab in my basement?

I live in a cold climate - Winnipeg Manitoba, and intend to install radiant heat in the concrete slab. As my basement is below the frost line, I’m not sure if ...

Posted by Scott Antonation Sept. 27, 2019, 1:06 a.m. Slab on Grade 3 Responses

Are Insulated Concrete Forms and Gigacrete panels good?

I want to build a house to passive house standards and keep it to a relatively small budget. I stumbled upon ICFs and Gigacrete while researching building mate...

Posted by Dallin Sumpter Feb. 21, 2019, 2:46 a.m. Wall assemblies - new construction 5 Responses

Is sealing basement concrete floor against radon a good idea?

...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

What is the best way to Insulate a basement and floor joists that are embedded into the concrete?

...concrete. That’s another issue where you need to be careful. Concrete is porous so as it is likely not protected from exterior moisture, it will stay wet. What ...

Posted by David Pereira April 28, 2020, 10:34 p.m. Foundation and basement improvements 2 Responses

What is the best way to heat an off grid home?

...Concrete slab floor with frost wall I will run with the assumption that your house is not yet built otherwise you would already have a heating solution, is that...

Posted by Michelle Nason Aug. 8, 2018, 1:48 p.m. Off-grid and Net-Zero Housing 3 Responses

What is the best way to insulate my basement?

...concrete step foundation down toward the rear with framed walls on top. The framed areas have fiberglass insulation but the concrete is bare. I want to finish...

Posted by Chris Rogers Oct. 27, 2019, 11:23 a.m. Foundation and basement improvements 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 3 Responses

What flooring options work with a passive solar design?

...concrete floor with radiant heat will help to hold heat within the house for the longest period of time. My wife is not a fan of concrete/tile floors within the...

Posted by Christopher Dunn Feb. 23, 2020, 11:50 a.m. Passive solar home design 1 Responses

Can you install foam boards directly against basement walls?

...concrete. A mold expert told me to put the board on top of the framing, not directly onto the concrete wall so the house can breath. What is the right course of...

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 4 Responses