Rockwool / Discussions

Can you Insulate a cinder block basement foundation with Rockwool?

...Rockwool to avoid moist warm interior air condense on the rim joist behind Rockwool (between rim joist and Rockwool ) . I am planing on placing drywall on the w...

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

Can you insulate a concrete block basement walls with only rockwool?

Hello, We are redoing our basement ourselves (zone 5, Toronto) and on a budget after gutting the entire finished basement due to extensive moisture penetrati...

Posted by Aarne Valikangas Jan. 1, 2021, 9:22 p.m. Basements improvements 1 Responses

Can Rockwool be installed over Type II EPS?

...Rockwool Comfortboard 80 over the EPS? When insulating the exterior of a house whether that’s a new home or adding insulation to an existing exterior wall, it i...

Posted by Brian Bonnell March 30, 2020, 11:04 a.m. Wall assemblies - renovation 1 Responses

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

...Rockwool or 4 inches of Halo rigid insulation, I'd be less concerned that if you were only putting 1 inch of Halo. If you go with Rockwool then I imagine the ...

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

What is the best way to frame window openings when adding exterior insulation?

Building a new home (2x6); want to add 2-4" of rockwool on the outside; would like my windows to sit in the outside 1/3 of the frame; most of the windows are s...

Posted by Anwas Qwelten May 30, 2019, 8:16 p.m. Windows and doors 1 Responses

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

...rockwool or foam 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 ins...

Posted by Rebekah Barnes Jan. 17, 2020, 10:07 p.m. Wall assemblies - renovation 1 Responses

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

...Rockwool comfort 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...

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

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

...Rockwool Comfort Board 80 option too. Would it work to use a self adhering WRB, on the sheathing and then insulate with 8" of Rockwool Board or is there too muc...

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

What is the best way to insulate rim joists with EPS and batts?

...rockwool batt), and then drywall. Which one of these approaches should I use? 1) Sandwich multiple EPS pieces againt rim joists/cripple wall cavities and buil...

Posted by Steve J July 18, 2019, 3:53 p.m. Basements improvements 1 Responses

How do you seal windows from the exterior for water and air but not create a vapor seal?

...Rockwool to insulate the gap and tape for water, air and vapor barrier. I am concern that taping it outside might cause the vapor sandwich which I want to avoid...

Posted by Piyush Prince Nov. 7, 2018, 12:10 a.m. Windows and doors 1 Responses

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

...Rockwool over? Or another product? Thanks. Bryan Vermiculite can often be contaminated with Asbestos , so I assume that is the testing that you did, and gre...

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

What do I in my basement where new insulation meets old?

I’m insulating my basement with 2” of EPS against poured concrete foundation, then framing a 2x4 wall, then adding Rockwool. Unfortunately, due to some areas, ...

Posted by Steve J July 20, 2019, 10:01 p.m. Basements improvements 2 Responses

What type of insulation under an outdoor deck frame with 2x8s?

I have a 11x17 feet 3 season gazebo fully enclose on a deck. Sitting on deck board and finish the inside with LVT. I want to insulate the floor. Though of Rock...

Posted by Eric Dalpe Sept. 15, 2020, 9:13 a.m. Wall assemblies - renovation 4 Responses

Is it normal that condensation forms on the windows of my new home?

...rockwool and R3 panel insulation. The windows are double glazed wood and aluminum. I do not have an air exchanger yet, I’m wondering if that is part of the prob...

Posted by Kevin Newman April 19, 2017, 10:30 a.m. Windows and doors 1 Responses

What is the best way to seal around windows?

...rockwool and seal it with tape on the inside? Any suggestions will help. A good place to start is our page about How to Install Windows & Doors Correctly that i...

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

How do you best use polyiso insulation in a basement?

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

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

What is the perfect wall assembly?

...Rockwool. What are your thoughts on this variation? Also, I do want to insulate on the outside as in the video, using Rockwool on the outside. The wall shown ...

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

What is the best foam board insulation under drywall?

...Rockwool and about 1" of foam 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 scr...

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