Roxul / Discussions

How do you finish the exterior of slab on grade?

...roxul that would be exposed after building the exterior walls. Just to be clear when you say the 'top of the Roxul', the top horizontal edge of the slab insulat...

Posted by Dave Derouin Oct. 18, 2018, 1:45 p.m. Slab on Grade 1 Responses

What is the best way to Insulate a basement and floor joists that are embedded into the concrete?

...roxul insulation in the ceiling space as sound proofing and the roxul/batt insulation is in the ceiling space right up against the exterior wall. Installing bat...

Posted by David Pereira April 28, 2020, 10:34 p.m. Foundation and basement improvements 2 Responses

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

...Roxul and technically called mineral wool) insulation is a good one. Here is a page to the best Tiny house we've seen, and it was insulated with Roxul batts, mo...

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

How do I insulate my half below grade basement?

...roxul insulation to give around r24 (local code). This is expensive and I'm not 100% on board because the basement is half above grade. I have seen in the CMH...

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

How do you best use polyiso insulation in a basement?

...Roxul/rockwool insulation, NO poly vapor barrier & ½” gypsum drywall, sealed with drywall sealer and painted with vapor barrier paint. What problems do you se...

Posted by Iain Matheson Jan. 24, 2020, 7:45 p.m. Basements improvements 1 Responses

How do insulate the outside of a log home?

...Roxul insulation, horizontal strapping with 1x3s and then either vinyl siding or pre painted wood board and batten. My questions would be, do I need to have a a...

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

What is the perfect wall assembly?

...roxul comfortboard [...but I assume this is the ''cavityrock'' product line as I cannot find 4'' comfortboard in the offering.] I appreciate that 2 courses were...

Posted by Paul Drouin Sept. 17, 2020, 6:29 a.m. Wall assemblies - new construction 1 Responses

Where does a vapour barrier go when building a shed in southern Ontario?

...roxul batts and the infamous 6 mil poly. The ceiling is R40 pink as I got a good deal, and figure if it cost the same as R24, may as well enjoy the ROI. I was g...

Posted by Charley Nelson Nov. 5, 2020, 10:09 a.m. Wall assemblies - new construction 1 Responses

In your Edelweiss house you use 2x6 studs. Why not use 2x4 studs and add 2" rigid on the inside?

8" semi rigid and 5 1/2" between the studs. why not use 8" semi rigid, 3 1/2" between the studs and 2 " more semi rigid on the inside beneath the gyprock? Is t...

Posted by Tom Wagar Aug. 25, 2019, 3:40 p.m. Wall assemblies - new construction 1 Responses

Do you have an updated recommendation for attaching exterior mineral wool insulation?

Do you have an updated recommendation for attaching exterior mineral wool you built a few years ago? The way we attached mineral wool insulation on the LEED Pl...

Posted by Fred D Aug. 31, 2020, 1:07 p.m. Wall assemblies - new construction 1 Responses

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

...Roxul), and dense packed cellulose . Very important along with which insulation you choose is proper installation to make sure it lasts. To that end, I would ...

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

What is the best way to insulate a 2x8 wall?

...Roxul), is very permeable to moisture so while it isn’t the cheapest, it is the most foolproof as it won’t ever trap moisture like some foam insulation can. S...

Posted by Michael Sweglar July 8, 2020, 10:43 a.m. Wall assemblies - new construction 3 Responses

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

...Roxul) mineral wool insulation? We really like it when insulating the exterior of existing walls because it doesn’t trap moisture and it isn’t negatively affect...

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

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

...Roxul) and Johns Manville. The other think you'll need is a weather barrier / weather resistive barrier (WRB), and a breatheable one would serve you best to a...

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

What is the best way to seal around windows?

...Roxul is our batt insulation of choice due partly to it’s composition of being largely recycled, but also that it handles exposure to moisture well. I would sug...

Posted by Bryan Squirrell Oct. 8, 2019, 8:53 p.m. Windows and doors 1 Responses

Can you Insulate a cinder block basement foundation with Rockwool?

I am looking for advise on how to insulate CMU walkout basement with Rockwool insulation. I have one wall fully above ground (walkout side) one wall fully be...

Posted by Victor B June 19, 2019, 11:41 p.m. Basements improvements 5 Responses

Which type of exterior insulation to use on a house?

...Roxul or Rockwool). We like it for the very reasons you mention, that it isn’t harmed by moisture and it lets moisture pass right through it. Here is the page y...

Posted by Trevor Marshand May 26, 2020, 1:16 p.m. Insulation and soundproofing 1 Responses

How do you fix high humidity levels in a basement?

...roxul insulation in the floor joist in the basement, but my idea was dismissed. I was told that I should add more insulation in the attic and insulate the walls...

Posted by JR Tadinac Aug. 21, 2019, 11:26 a.m. Healthy indoor air quality 3 Responses