Rigid foam / Discussions

Which insulation do I use for interior walls of a framed in bunker?

...rigid foam etc. Here is our page on Choosing the right insulation , that will help you understand where each insulation works best no matter what the structure ...

Posted by Dale Klubertanz March 23, 2021, 10:38 a.m. Insulation and soundproofing 1 Responses

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

...rigid foam for this specific purpose. As for your stairs, if there is a 2-inch gap, I would consider slipping a couple of 1.5” foam boards behind it if possible...

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

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

...foam acts pretty much as a type II residential vapor barrier, but I would put the vapor barrier right against the foam and do the poly on top. And as for fini...

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

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

...rigid insulation 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 ...

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

Will spray foam on basement walls prevent condensation?

...rigid foam insulation behind the stud wall? If not, is there anything there like a tar paper or house wrap? Let me know what’s back there and if the wall assemb...

Posted by Michael Scott April 12, 2021, 9:17 p.m. Basements improvements 3 Responses

What is the best way to insulate a Multi-material wall?

...rigid rock wool panel to let moisture pass through? Read more here – Rigid insulation panels for exterior walls – how to choose the right one And I just wan...

Posted by Steve J Sept. 29, 2020, 10:15 a.m. Wall assemblies - renovation 7 Responses

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

...rigid board to close it off and limit rodent. I m in Quebec Canada so winters are cold. The walls are aluminium, i though I could insulate them with 1.5 " rig...

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

How do you fix moisture problems in basement?

...foam can get under and behind. That way your wood is prefectly protected. As for the spray foam, my other suggestion would be to choose a spray foam with more c...

Posted by John rodrigues Nov. 27, 2020, 8:50 a.m. Basements improvements 3 Responses

What do you think of insulated T Studs in Canada?

...foam. However, if the company that makes these insulated wood studs is building them in partnership with spray foam manufacturers that have changed to safer b...

Posted by Lee Watt June 3, 2019, 10:57 a.m. Wall assemblies - new construction 1 Responses

What is the most efficient passive home design?

...foam forms a good idea? To find the most efficient Passive House wall, if your intention is to reduce your carbon footprint, starts with choosing materials with...

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

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

...Foam Insulation & Styrofoam There are rigid insulation boards that will act as the insulation only, insulation and air barrier only, or all in one - insulatio...

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

How do you insulate a cathedral ceiling?

...foam insulation. My 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 barr...

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

How do you remove moisture and condensation from basement walls?

...foam or rigid foam and do not change the exterior waterproofing, will that stop the moisture from coming inside? Or is digging down and adding a waterproofing m...

Posted by Aaron Keating July 27, 2019, 4:51 p.m. Basements improvements 3 Responses

What is the best exterior insulation to put over existing double brick?

...Foam insulation will act as a vapor barrier - less so with just one inch since the permeability of foam goes down the thicker it is - but we would point you tow...

Posted by Andrew T July 19, 2021, 8:19 p.m. Wall assemblies - renovation 1 Responses

Should you put insulation on the outside of a cinder block wall in a desert?

...foam board then tar board chicken wire then stuco then paint with elastromeric/ sand mix, all to keep out heat. Styrofoam or no Styrofoam is the question. is it...

Posted by Michael Apodaca March 9, 2020, 3:10 p.m. Wall assemblies - renovation 1 Responses

Can I purchase XPS made with HFOs?

...rigid insulation board you purchase will still have an impact several hundred times worse than EPS. And the moment that the switch is made, manfucturers will co...

Posted by Kate Noblio Dec. 14, 2019, 12:35 p.m. Insulation and soundproofing 3 Responses

Which is the best exterior insulation board to make a cottage 3 season?

...rigid insulation options, and I've come to the conclusion that as much as I'm trying to reduce plastic use, as EPS is mostly air (3% plastic?), affordable, does...

Posted by Sharon Challingsworth April 23, 2021, 7:16 a.m. Insulation and soundproofing 1 Responses

Is there anything I can do about a vapor barrier on the wrong side of a basement wall?

...foam board, I still have multiple iron spikes embedded in the concrete. Do I need those? May I cut them flush? Also before foam board, should I paint some wat...

Posted by Iain B Feb. 8, 2021, 2:21 p.m. Basements improvements 7 Responses