Cellulose walls / Discussions

What is the best way to insulate a home from the outside?

...cellulose insulation added decades ago between the studs, but as per usual the cellulose has settled and there are big gaps at the top. As part of an extensive ...

Posted by Sylvie Gagnon Dec. 12, 2017, 11:58 a.m. Wall assemblies - renovation 1 Responses

What is the right amount of insulation for a house?

...cellulose in walls and loose pack cellulose in ceiling. Thanks. What you are referring to is often called the ‘sweet spot’ in home design for choosing the right...

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

How do you do a vapor barrier in a dense pack cellulose wall?

...cellulose industry that makes the netting unnecessary at this point. There are new cellulose guns on the market that suck in air as they inject the cellulose, s...

Posted by Ian MacKay July 26, 2018, 2:48 p.m. Wall assemblies - renovation 4 Responses

How do you insulate a cathedral ceiling?

...walls are double 2x4 stud walls 12 inches deep and will have 2-3 inches of closed cell spray foam insulation to create a air and vapour barrier first, then the ...

Posted by Raoul Lions Oct. 19, 2019, 8:07 a.m. Roof assemblies - new construction 1 Responses

Followup to the question How do you install Larsen Trusses on a home in Minneapolis?

...walls with oil paint, 2x4 studs, and is insulated with blown in cellulose. The exterior sheathing boards are1x's. I’ve done thermal scans of the walls. There do...

Posted by Ken Traefald Feb. 27, 2020, 1:49 p.m. Wall assemblies - renovation 1 Responses

What is the best material to use for wall and roof insulation?

...walls can dry , also read about the importance of air barriers for energy efficiency and durability . If walls are not built with airtightness and an ability to...

Posted by Babak K July 12, 2020, 8:43 p.m. Insulation and soundproofing 1 Responses

Can you spray foam a house from the outside?

...cellulose. A contractor suggested they could remove existing fibreglass by removing a few boards from the outside, and then blow in the cellulose. Does that sou...

Posted by Joan Lawrence July 11, 2019, 7:17 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?

...walls from the outside we've written a guide page here. Some rigid board insulations are a vapour barrier, some are not. Some are air barriers, some are not. ...

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

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

...walls and roof material. Is there a big difference in cost? We have typically found above-grade walls to be a more affordable building option, but no, it is n...

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

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

...walls, and insulate the roof. What is the best product to proceed with? Should vermiculite be removed of put Rockwool over? Or another product? Thanks. Br...

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

What is the most efficient passive home design?

...cellulose insulation that has an extremely low carbon footprint. So this full life cycle of that home would be easily 10 or more times lower than a Passive Hous...

Posted by Peter Riley Jan. 29, 2020, 9:01 p.m. Passive House 1 Responses

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

...cellulose. The exterior sheathing boards are 1x 8's. I've done thermal scans of the walls. There doesn't seem to be any excesses settling of the cellulose. I've...

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

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

...walls are a very thick plaster board (maybe 1" or more thick). I want to take the walls down to the studs and insulate. There is family debate about taking the ...

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

Looking to build a small home as eco as possible, where do we start?

...cellulose walls . As a rule, at the very start of designing a home, you would need to first set your priorities - something has to be flexible; either the bud...

Posted by Jenn Bisson July 12, 2019, 12:12 p.m. Planning and Design 2 Responses

How do I stop a leak from my attic?

...walls of two opposite exterior walls. I checked the attic and found 1) frost of the underside of the roofing plywood 2) insulation stuffed to the soffit and t...

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

How you vent a metal roof?

...cellulose (here is our page about how to choose the best insulation ) You would then need to add sheathing and a drainage plane, then the strapping and metal. h...

Posted by Kim jarrett July 12, 2019, 12:15 p.m. Roof coverings 3 Responses

When using larsen trussees, what is the maximum spacing between TJIs

...cellulose insulation on the exterior of walls is an excellent way to insulate an older home or a brand new home, and even meet Passive House standards. Here is ...

Posted by Steve Outlet March 6, 2020, 12:39 a.m. Wall assemblies - renovation 1 Responses

What is the best way to insulate exterior of older home?

...walls with no insulation behind them. I want to insulate the walls but not remove the plaster as it's still in excellent condition. My house goes right to the p...

Posted by Geoff Kavanagh June 30, 2020, 4:01 p.m. Wall assemblies - renovation 2 Responses