Board / Discussions

Is polyiso board or styrofoam best for insulating when finishing a basement in CO?

...boards I have a few questions that will help us pin down the best way forward for you - How old is the home? Is there an exterior membrane on the basement w...

Posted by Evan B. Nov. 21, 2019, 8 p.m. Basements improvements 1 Responses

What is the best foam board insulation under drywall

...board insulation attached to the stud and seams taped. Then I would set 1/2" drywall on top of the foam and attached with long screws. Does this sound like a ...

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

Is it OK putting 1 inch of EPS under vinyl siding with no wall insulation good?

We have a cabin in the Bershires of Massachusetts ceilings and floor have been insulated, dense pack celluose in ceilings 4 in Amivic graphite EPS under floors...

Posted by Roger Smith Nov. 12, 2019, 6:34 a.m. Wall assemblies - renovation 7 Responses

Can you install foam boards directly against basement walls?

...board directly against concrete. A mold expert told me to put the board on top of the framing, not directly onto the concrete wall so the house can breath. What...

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 4 Responses

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

...board loose its thermal properties? Does it go below R4.5 per inch? Is it usless at -15C ? or equal to XPS ? Polyiso starts to fall off in R value around 5-10C ...

Posted by Iain Matheson Jan. 28, 2020, 10:38 p.m. Wall assemblies - renovation 1 Responses

Which exterior insulation is best to create at thermal break in an bungalow in Alberta?

...board and new siding. We need a cost effective solution to create a thermal and air barrier on our 1970s raised bungalow. We have a fully insulated (with spra...

Posted by Rebekah Barnes Jan. 17, 2020, 10:07 p.m. Wall assemblies - renovation 0 Responses

Can I spray foam insulate from the outside?

...board and batton siding? Thank you, Kurt Are you not expecting to see some sort of sheathing behind the siding? In order to spray foam properly from the outsi...

Posted by Kurt Klischuk June 6, 2019, 8:56 a.m. Wall assemblies - renovation 1 Responses

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

...boards for installation in my basement rim joists, should I be looking for faced or unfaced foam boards to install there--and which surface of the boards (faced...

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

How do you best use polyiso insulation in a basement?

Polyiso foam board : fiber faced (white) (IKO Therm 3) or the older product, Organic faced (gray) polyiso. Both products have visible 2mm (+/-) holes in both s...

Posted by Iain Matheson Jan. 24, 2020, 7:45 p.m. Basements improvements 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

Can you use Foam boards on basement walls to stop condensation?

...board sliding them in behind the studs and directly to the concrete wall will this stop the condensation or will it just build up on the inside of the foam boar...

Posted by Chad Johnson Dec. 21, 2019, 7:59 p.m. Basements improvements 3 Responses

How do I insulate my half below grade basement?

...board because the basement is half above grade. I have seen in the CMHC book a scenario where a vapour barrier starts on the concrete, just above grade height...

Posted by tom mckeand Oct. 14, 2019, 11:01 p.m. Basements improvements 1 Responses

Where do I start to build a small, affordable, low-maintenance house?

...board to help. I know this is alot of information, I just want to paint a picture. Anyways I am not a builder and much of the information I read can be a litt...

Posted by Ocean-Lynn Georgelin Oct. 22, 2019, 11:40 p.m. Concept and design 2 Responses

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

...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 brick off the outside. If we ke...

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

Combo structural sheathing, WRB and thin insulation panel in Ontario?

...board and batten exterior. My research into potential sheathing has turned up a couple innovative products that combine a 1"- 1 1/4" structural panel, with an...

Posted by Steve Bull Jan. 14, 2020, 6:06 p.m. Walls and Roofs 3 Responses

How do you do insulation the outside of a log home?

...boards with vertical strapping (not horizontal) to allow for air flow. If you plan to go with board and batten cladding you would need horizontal strapping, but...

Posted by Michael Hickey Aug. 2, 2018, 6:03 p.m. Wall assemblies - renovation 1 Responses

What is the best way to insulate the basement of an old house?

...board then 2 x 4 studs with rockwool bats. I've also seen the part about possible breaking floor for a complete reno. I'm just wondering if the poly is against ...

Posted by Bryan Squirrell Jan. 14, 2020, 7:59 p.m. Basements improvements 1 Responses

Halo Exterra rigid exterior insulation - has anyone work with it?

Hi I'm wanting to add insulation to the exterior of my home as I am planning to replace siding was considering rockwool comfortboard but this Halo product was ...

Posted by George Shannon Jan. 21, 2020, 3:39 p.m. Insulation and soundproofing 3 Responses