Retrofit / Discussions

Can you replace an old slab foundation with an air heated slab?

...retrofit an existing slab built in the 70's; to a modern ecoHome standard? I imagine the house would have to be raised (jacked up) and possibly install the new ...

Posted by Mike Molloy Nov. 7, 2019, 8:44 p.m. Slab on Grade 1 Responses

What is the process to seal a house using Aero barrier spray?

...retrofit renoation project that includes working on airtightness. So would you suggest using air barrier and tape first? Or go straight for the Aerobarrier a...

Posted by Santiago Pacheco Feb. 13, 2020, 11:06 a.m. Air and vapour barriers 2 Responses

What would you say is the most comfortable heating system for a home?

...retrofit? For perspective – A well-insulated home with good quality windows will be more comfortable, even when you aren’t close to the heat source. If you find...

Posted by Anonymous Dec. 11, 2017, 11:25 a.m. Heating with electricity 1 Responses

I have many issues with my house where should I start?

My house was built in the Late 1940 - early 1950's, it is a farm buglalow with an addition in 1973, a poured concrete basement and concrete block foundation ad...

Posted by Bryan Squirrell Sept. 29, 2019, 3:08 p.m. Wall assemblies - renovation 1 Responses

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

I have an old home, circa 1920’s, I’m currently renovating in Saskatchewan, Canada. I want to add insulation on the exterior of the home. The house is currentl...

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

Is EPS or XPS better for use in basement rim joists? Should faced or unfaced foam boards be used?

...retrofit in a basement for over a year now. I started in a concrete crawlspace 4'8" high by 28 feet long by 12 feet wide with a concrete floor. The rim joists w...

Posted by Thomas Dispenza Sept. 8, 2019, 12:43 a.m. Basements improvements 6 Responses

For home renovation, is it better to install insulation on the inside or outside?

Hi, I have a 1955 red all brick bungalow. the interior walls are a very thick plaster board (maybe 1" or more thick). I want to take the walls down to the stud...

Posted by Neil Richardson Jan. 29, 2019, 4:09 p.m. Wall assemblies - renovation 1 Responses

How do I stop a leak from my attic?

I'm getting water dripping down the inside walls of two opposite exterior walls. I checked the attic and found 1) frost of the underside of the roofing plywood...

Posted by Markus Duess Feb. 11, 2019, 12:42 a.m. Roof assemblies - renovation 1 Responses

How do you get rid of mold in a bathroom?

...retrofitting ductwork looks too complicated, then consider a ductless HRV unit instead, see here for details . There's also a video on how easy these ductless r...

Posted by Sara Oct. 28, 2017, 9:50 a.m. Healthy indoor air quality 1 Responses

Can I add Larsen Trusses and cellulose to 1920s House in Minneapolis?

I have 1920's house in Minneapolis, I'm thinking about tearing the siding off and adding 12" deep Larsen trusses with dense packed cellulose. The guides I've s...

Posted by Ken Traefald Feb. 17, 2020, 2:30 p.m. Wall assemblies - renovation 3 Responses

How do you insulate a 70s home with 2x4 walls that has fiber glass insulation?

What is the best way to insulate from the outside? Rock wool? How costly of a project is this? Here is an article that will give you a starting place about tea...

Posted by Mark Aussenegg Nov. 26, 2018, 6:49 p.m. Wall assemblies - renovation 1 Responses

Can you spray foam a house from the outside?

I live in Calgary, Alberta. My house is a 1940s bungalow with a second storey added in 1988. We are replacing the vinyl siding with Hardie Board, and want to i...

Posted by Joan Lawrence July 11, 2019, 7:17 p.m. Wall assemblies - renovation 3 Responses

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

...retrofit for high end performance (It’s LEED Platinum), you could back off a bit on the insulation levels if it helped you afford a geothermal system. As for ...

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

I want to insulate the outside of my house, which type of insulation do you think is best?

I live in Southern Alberta and will be replacing my exterior vinyl siding with wood, I also want to add insulation at the same time. It's a 2x4 wall with pink ...

Posted by Joe F Nov. 15, 2017, 10:34 a.m. Wall assemblies - renovation 7 Responses