Concrete / Discussions

Can you jack up a cottage and build a slab on grade underneath it?

I have a cottage in Quebec which used to be resting on the ground. In the 1950s they dug under neath and poured concrete and used cement blocks to make a three...

Posted by William Rae June 6, 2021, 12:23 p.m. Slab on Grade 3 Responses

Should I insulate a crawl space from the outside?

...concrete wall. My concern is trapping water in the concrete, a serious problem in our cold climate. Also the floor joists are cast into foundation walls which m...

Posted by Ryan Argente March 7, 2021, 5:07 p.m. Crawl spaces 0 Responses

Is there anything I can do about a vapor barrier on the wrong side of a basement wall?

...concrete, that's not a bad thing. Concrete is very porous so it will forever absorb moisture from the ground and deposit it into walls if allowed, or dry to the...

Posted by Iain B Feb. 8, 2021, 2:21 p.m. Basements improvements 7 Responses

What are the factors I should consider for choosing between a slab on grade and basement?

...concrete as opposed to putting it under floor. Not to mention running ducting for ERV. Is this a valid concern? What if there is a leak in the drains, how would...

Posted by Shaun B April 2, 2019, 6:35 a.m. Slab on Grade 3 Responses

What are the foundation options for a prefab house?

...Concrete Piers: Pros are low cost (marginally higher than screw piles), low tech so I could install myself, elevated foundation to manage slope, access to utili...

Posted by Richard Bowie Nov. 20, 2020, 3:40 p.m. Foundations and Basements 2 Responses

How do you insulate a cottage crawlspace? It's in the Haliburton Highlands

...concrete piers. The cottage crawlspace is uneven ranging from 30-36 inches. Exterior of crawlspace surrounded by pressure treated plywood skirting which has mul...

Posted by Beata Domanska May 25, 2020, 11:38 a.m. Crawl spaces 1 Responses

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

...concrete walls. the access to the crawl is from the part basement. i have take out old r10 batts that were in the floor joists. the crawl is vented with 2 vents...

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

What is the best way to do exterior foundation styrofoam finishing?

I have never done exterior foundation insulating because I have never seen a good looking and long lasting finish. Even parging on concrete only lasts so long ...

Posted by Castor River Farm Jan. 31, 2021, 12:56 p.m. New foundations and slab-on-grade 1 Responses

How do you prevent mold in a finished basement?

...concrete basement stuffed full of fiberglass insulation, covered with plastic then all covered up with drywall so we can't see another disaster coming! Every on...

Posted by Brian Cole Nov. 22, 2019, 10:22 a.m. Basements improvements 1 Responses

What is the best way to make a row house in Montreal Quebec more energy efficient?

...concrete, and as long as the home is a comfortable temperature, your feet won’t really feel cold standing on wood floors like they would on concrete. And whil...

Posted by Elizabeth Brown Feb. 26, 2019, 9:09 p.m. Wall assemblies - renovation 3 Responses

Should you allow air flow through a crawl space with a dirt floor?

...concrete blocks so we had it lifted and put on screw piles. When it was lifted the new crawl space was sheeted with plywood and poly was layed on the dirt floor...

Posted by Amber Murray Aug. 17, 2020, 10 p.m. Crawl spaces 3 Responses

How do you insulate a crawlspace with dirt floor?

...concrete block walls (2 inch) The cottage is 900 square ft. To complicate things, we have just made a 400 square foot addition on concrete piers which is also n...

Posted by sal Bellicoso Oct. 30, 2019, 4:56 p.m. Crawl spaces 2 Responses

How do you remove moisture and condensation from basement walls?

...concrete and insulation. There is no wood as the wall frames are metal. No leaks from the outside coming in either. I feel like the insulation is wrong and th...

Posted by Aaron Keating July 27, 2019, 4:51 p.m. Basements improvements 3 Responses

What type of Insulation can I use on the exterior of my home?

...concrete type stucco that may be original? I was thinking a “bubble wrap” type product, strapping then siding. I’m second guessing myself now as that’s a vapo...

Posted by Scott Muller April 18, 2019, 2:19 p.m. Wall assemblies - renovation 6 Responses

How do you install a radon barrier in a crawlspace with an uneven floor?

...concrete slab...except for one part of it, which is an enclosed room that has a huge rock in the middle of it...so this creates very irregular surface and thus ...

Posted by Reinhart Bigl Nov. 29, 2021, 4:01 p.m. Radon in Homes - Mitigation 1 Responses

How do you stop wind from blowing under a house on piers?

...concrete or concrete block walls. Also I just saw that you do not advise installing XPS foam board below grade. I was planing on taping the 6mil. plastic to the...

Posted by Robert Boyle Oct. 17, 2021, 12:11 a.m. Foundation and basement improvements 1 Responses

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

I’m insulating my basement with 2” of EPS against poured concrete foundation, then framing a 2x4 wall, then adding Rockwool. Unfortunately, due to some areas, ...

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

How do we find a designer for our new build?

...Concrete Pour Over for main floor, as option, if possible (easy maintenance, nice heat absorption from S facing sun) Wood burning fireplace Spiral staircase to ...

Posted by Tim Blais Feb. 15, 2021, 8:40 p.m. How to Find Qualified Green Building Professionals 1 Responses