R value per inch / Discussions

Can you use polyiso insulation on the exterior of a wall behind cedar siding on the west coast?

...red to have an R value of 5.5 per inch in warm climates, and about R 5 per inch in colder climates. If I’m right about where you live then you’re probably in th...

Posted by Iain Matheson Jan. 28, 2020, 10:38 p.m. Wall assemblies - renovation 2 Responses

Building a Honka log “pretty good house” planning - thoughts on hvac, ventilation and roof

...rch either from the category menu or in the search bar. From there if you have questions we can for sure help, just try to break them up so they are easier to a...

Posted by Klemen Novak June 28, 2020, 1:55 a.m. Planning and Design 1 Responses

What's the difference between EPS and GPS insulation?

...re you would use EPS rigid foam insulation. EPS is typically rated at abou R4 per inch where GPS is typically rated as having R5 insulating value. Here is our...

Posted by Ronald Tetrault Feb. 3, 2021, 5:22 p.m. Insulation and soundproofing 1 Responses

Can you spray foam a house from the outside?

...r been fans of spray foam despite the fact that it is an excellent performing all-in-one product where you get the insulation, the air barrier and vapor barrier...

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

What is the best foam board insulation under drywall?

...r R value per inch than fiberglass and it’s a good for soundproofing . You’re right about polyiso insulation and its reduced performance in cold weather, you ma...

Posted by Wesley Pracht Jan. 11, 2020, 8:10 p.m. Wall assemblies - renovation 1 Responses

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

...rtar and that wood is about R1 per inch it’s still not an extremely high R value (depending on where you're located). And cord wood walls are not very airtight,...

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

Do I need to insulate under the footings of a frost protected shallow foundation?

...ral terms and as a point of reference only - our experience with slabs in Canada is that R20 like you describe is not extreme, nor does it always require a skir...

Posted by Jon Piana April 15, 2019, 8:45 a.m. Slab on Grade 1 Responses

Should I densepack wall cavities prior to exterior insulation?

...rs). We opened up one wall during a kitchen reno and found R13 fiberglass. But it's starting to seperate from the kraft paper, and the paper itself is starting ...

Posted by Gordon McNair April 13, 2021, 9:21 a.m. Wall assemblies - renovation 3 Responses

Do you have on a category on insulating vans?

...rior space . Because of that, people often choose a wood-framed interior and spray foam. That would provide a high per-inch R value, but the air tightness an be...

Posted by chantal fortier April 14, 2019, 2:08 p.m. Tiny house 1 Responses

What is the best approach to insulate the floor in a tiny home, built on a trailer?

...rete does not have a particularly high R value per inch and is extremely heavy. A tiny house on wheels already has a pretty high carbon footprint per square foo...

Posted by Dustin Hartwig May 28, 2020, 4:31 p.m. Tiny house 3 Responses

What is the best way to insulate embedded joists in a basement Montreal Home?

...r R value per inch, but it’s about half the price and has a fraction of the global warming potential, you can read more here on our page about choosing the best...

Posted by Emil Idf Jan. 7, 2020, 8:34 p.m. Foundation and basement improvements 1 Responses

Spray Foam for basements, which of the different types are best environmentally?

...ray foam as an air barrier, a vapor barrier and for energy-efficiency by reducing heat loss, as it has one of the highest per-inch r values of commercially avai...

Posted by Rose Adams Jan. 9, 2020, 9:33 a.m. Insulation and soundproofing 1 Responses

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

...ry wise to sacrifice some interior space to accommodate thicker insulation. Spray foam provides the insulation, vapour barrier as well as an air barrier, so i...

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

Basement reno - How do I effectively insulate my basement?

...r barrier for residential construction. That would better prevent moisture from the ground and concrete walls from migrating inwards. Question: Concrete Sla...

Posted by Steve J Feb. 13, 2019, 10:25 p.m. Foundation and basement improvements 2 Responses

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

...rs that really understand the properties of the materials they are using, or that there actually are different properties. You are for sure on the right track, ...

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