Slab / Discussions

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

...slab is cooler than your slab (which it would be by about 15 degrees Celsius in your case) you will be feeding heat into the ground. Your basement should be d...

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?

...slab on grade floors is only available with Legalett-designed slabs unfortunately . It is a proprietary design that was created as a solution for Passive House ...

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

Where would I go for guidance on structural design of footings that sit on top of high-density insulation?

...slab form kit - (see details here)

Posted by Douglas Bennion July 31, 2019, 4:34 p.m. Foundations and Basements 1 Responses

Protection from Insects for Legalett Geo-passive super insulated slab on grade?

...slab is the possibility of insects, especially termites and/or carpenter ants infesting the EPS. Is that a danger? Among the many possible ways to protect again...

Posted by James Burns April 30, 2020, 11:11 a.m. Slab on Grade 0 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 tha...

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

Where do you install a weeping tile with a high water table?

...slab or I won’t be able to access the sump pump/pit. Thoughts? Should I suspend the weeping tile outside the wall just below the basement slab? Thanks I would f...

Posted by Alex Kesheshian June 11, 2020, 11:54 p.m. Foundations and Basements 1 Responses

What do you think about SIP framing system?

...slab idea, I think they’re great, and as someone that won’t make any money no matter what you build, I’d suggest you start here – Choosing between a slab on g...

Posted by Nadia Mehan July 24, 2020, 3:29 a.m. Wall assemblies - new construction 2 Responses

How do you install radiant floor heating in an old building?

...slab on grade floor under and existing building would be to jack it up, (get this done professionally as it is not a safe DIY project) then build a slab and dro...

Posted by Rob Doda March 19, 2020, 3:21 p.m. Delivery: radiant, forced-air and decentralized 1 Responses

Can you preheat ERV inlet air?

...slab? Similar to a geothermal heat exchanger concept. Yes, you can run what is called a ‘ground loop’ below grade to warm or cool incoming air to your ERV or HR...

Posted by A O April 6, 2020, 12:16 p.m. Ground-coupled heat exchanger 2 Responses

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

...slab on top of the existing slab over that half of the basement. The 2x4 stud wall that was placed up against the foundation walls was left in place, but protec...

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

What is the best insulation Under 2" Cement flat Roof in NYC?

...slab Roof for energy efficiency and water leaks? Maybe 2 layers? The base for the roof will be Metal beams. Thanks, Rafael, Brooklyn We would propose you use ...

Posted by Rafael Mor March 29, 2019, 5:19 a.m. Roof assemblies - new construction 1 Responses

New Build Whistler BC step 5

...slab on grade new consrtuction. Passive home design.I'm excited about having a passive house with low heating cost. ATWHP with hyrdonic heating and DWP is...

Posted by Nunga Man July 6, 2020, 2:46 p.m. Concept and design 1 Responses

How do you install your own DIY radon mitigation system?

...slab removal technique, unfortunately you are the only one that can answer your own questions regarding what lies beneath the slab and best location for drillin...

Posted by Ariel Fridman Jan. 27, 2020, 10:59 a.m. Radon in Homes - Mitigation 1 Responses

What do you think of Legalett Wall Insulation?

I have seen your recommendation for the Legalett concrete slab technology, but I wonder how their wall-insulation system compares to the wall systems that you ...

Posted by Igal H Aug. 19, 2020, 3:52 p.m. Walls and Roofs 1 Responses

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

...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” concrete o...

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

What is the best exterior Wall and Roof Rigid Insulation for a barn renovation?

...Slab will have 4" of Rigid Insulation under the slab and extending 4' out from the edges. I believe I am located in Climate Zone 6. Does the above make sense? ...

Posted by Ron Busch June 27, 2020, 3:50 p.m. Wall assemblies - renovation 1 Responses

What is the right amount of insulation for a house?

I'm looking to build a small single level passive solar orientated house with double walls or Larson truss (either would have dense pack cellulose) on a slab f...

Posted by Ryan Gerbrandt Feb. 11, 2019, 9:57 a.m. Passive solar home design 4 Responses

What is the best wall & insulation combination for Colorado?

...slab foundation with air heated piping, as well as a wood burning stove. Thanks in advance! Most of Colorado has semi-arid climate conditions, and your temperat...

Posted by Jacob Johannessen July 2, 2020, 11:13 a.m. Efficient home design 1 Responses