Floor / Discussions

What is a thermal break solution at a door threshold?

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

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

What insulation should you use to cover the ground GEODESIC Dome?

...floor you would find foam insulation, though in 2015 we did build a demonstration house on a slab on grade using mineral insulation below the floor, would that ...

Posted by Vincent Warwick Oct. 1, 2020, 2:09 p.m. Insulation and soundproofing 1 Responses

How do insulate a basement slab that is sloped ?

...floor. Is there a better way to do this ? Thanks for your help ! The best way to insulate a basement floor that is not currently level would of course be to...

Posted by Louis-François Lapointe Nov. 11, 2020, 10:34 a.m. Basements improvements 1 Responses

Is cross laminated lumber to heavy to frame a cantilevered room?

...floor. How far you can go and which materials you should use would for sure be an engineering decision though. For your final cladding, check here on our page...

Posted by Teresa Pfiffner May 20, 2020, 7:43 p.m. Wood and organic materials 1 Responses

How well do Legalett slab on grade floor forms work?

...floor? The legalett heater box that is embedded in the floor has drain holes in each corner of the box, and it sits on an EPS foam base that has holes that line...

Posted by Steve Sykes Aug. 18, 2019, 3:21 p.m. Slab on Grade 3 Responses

What is the best practice to insulate a crawl space floor?

...floor, 3 cement block walls, open lattice wall to access crawl space, exposed floor joists 24'' o.c., height from ground to bottom of joists is 36" If you hav...

Posted by austin Fanning March 16, 2020, 8:55 a.m. Crawl spaces 4 Responses

Is sealing basement concrete floor against radon a good idea?

...floor and walls. I have heard of a product called radon block, I believe this is a sealer of some kind. Just wondering if sealing my floor is worth it and w...

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

Is there an update on your demo house solar air heater?

...floor heating system Legalett is known for. My question is does the extra cost of adding the solar air collector and additional cost for added piping and instal...

Posted by dean c Oct. 24, 2020, 2 p.m. Concept and design 1 Responses

What can I do to prevent mold and musty smells from a crawlspace with a dirt floor?

...floor crawl space with about 24 inches from dirt to underside of floor and it gets wet which causes the floor joists and under flooring to get damp and moldy. W...

Posted by bonna gordy May 15, 2020, 8:16 p.m. Crawl spaces 1 Responses

Can I use a solar thermal water heater to heat my pool in the summer and the floor of the garage that I am going to build?

...floor heater in winter given the risk of freezing, also that it would likely hold snow, rendering it useless. As for your garage floor, it really depends on h...

Posted by Bill Loucks Oct. 5, 2019, 9:48 p.m. Solar thermal collectors 2 Responses

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

...floor joists? Right now the home has roxul insulation in the ceiling space as sound proofing and the roxul/batt insulation is in the ceiling space right up agai...

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

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

...floors you can see that much more heat is contained by the insulation. Also worth noting is the light red colour of the uninsulated floor which indicates a cool...

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

Can you use spray foam Insulation under a slab?

Were building a new house and are wondering if you can insulate under slab with foam polyurethane. If not, why? When building a slab on grade, EPS rigid foam i...

Posted by Linda Martin April 6, 2020, 11:54 a.m. Slab on Grade 1 Responses

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

...floor are performing. I'm keen to use PV solar to heat my radiant floors in an off-grid high thermal mass passive solar house I'm building on California's Men...

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

Can I use a Legalett slab in Florida if I don't want floor heat?

...floors that would work better? A Legalett raft slab has an optional air heated radiant floor , but it is not necessary. They are installed in all climates from ...

Posted by Harry Dickinson March 25, 2021, 10:21 a.m. Slab on Grade 1 Responses

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

...floor, insulation between the floor joists and has 3 - vents to the outside. I am thinking of 1" foam boards on the walls, sealing the floor. There is no moistu...

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

Are there any updates on the progress of the second demonstration house?

I am most curious about the effectiveness of the air tube floor heating system. The house is now standing, it is the first house built of our new prefab modula...

Posted by dean c April 30, 2019, 7:58 p.m. Solar thermal collectors 2 Responses

What infloor radiant heating would you use in a corewood home design?

...floor heating powered by air tubes heated with air solar panels Installing a hydronic radiant floor system in a slab-on-grade floor The air heated floor may...

Posted by John Yoho Feb. 6, 2020, 10:59 p.m. Wall assemblies - new construction 1 Responses