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

How should I insulate under a concrete hydronic slab on stilts?

...concrete hydronic radiant floors. Does anyone have any experience with DIYing hydronic concrete slabs on stilts. How I would go about insulating underneath to...

Posted by Cam Smith Feb. 6, 2021, 12:21 p.m. Foundation choices 1 Responses

How do you build an air heated concrete slab?

...concrete floor. I am hoping by the time the evening comes the concrete space would start releasing its heat and as air flows through the floor would warm the en...

Posted by Matt Wisniewski Dec. 27, 2020, 6:27 p.m. Passive solar home design 0 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

How do you prevent mold under flooring of a house on concrete slab?

House is being built on concrete slab. I would like to ensure that moisture coming through the slab will not be trapped beneath the flooring. Is your slab buil...

Posted by Linds Cullen Dec. 31, 2020, 4:11 p.m. Slab on Grade 2 Responses

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

...concrete block and we have 2 sides done with interior plastic membrane to french drain and sump pump, one side exterior waterproofing, and one side with no wate...

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

Is there any risk to a concrete foundation from adding interior insulation?

...concrete and then a framed stud wall with mineral wool batts and drywall with latex paint. I'd like to do something simple (EPS + plywood) on the concrete floor...

Posted by Drew Tozer Jan. 5, 2021, 12:57 p.m. Basements improvements 4 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

How do you determine the thickness of concrete for slab on grade construction?

...concrete needed for structural integrity needs to be determined by an engineer.

Posted by Ackeem Beason Feb. 16, 2021, 2:46 a.m. Slab on Grade 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 2 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

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 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

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

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