Polyiso / Discussions

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 si...

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

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

...Polyiso, EPS & XPS 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...

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

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

...polyiso 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 aroun...

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

What is the best foam board insulation under drywall

...Polyiso insulation as it does not do good in cold environments? Please let me know your thoughts I think that’s a fine plan. We really like mineral wool insulat...

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

Can Rockwool be installed over Type II EPS?

...Polyiso, EPS & XPS Foam Insulation & Styrofoam Sometimes adding XPS or EPS rigid foam to the outside of a house can cause problems since it can trap moisture....

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

What is the best insulation Under 2" Cement flat Roof in NYC?

...polyiso boards, but that has not turned out to be as excellent as originally thought. It turns out that the performance actually gets worse the colder it gets. ...

Posted by Rafael Mor March 29, 2019, 5:19 a.m. Roof assemblies - new construction 1 Responses

How to insulate an apartment you don't own?

...Polyiso, EPS & XPS Foam Insulation & Styrofoam Top Tips for Getting a House Ready for Winter Best Energy Saving Tips for Green Homes

Posted by Teresa Cunningham Oct. 21, 2019, 3 p.m. Wall assemblies - renovation 1 Responses

Can you add external insulation to a brick home?

...Polyiso, EPS & XPS Foam Insulation & Styrofoam Rockwool isn’t harmed by moisture and it lets moisture move right through it, which is a very good thing to use...

Posted by Rachel Kaiser April 2, 2020, 9:11 a.m. Wall assemblies - renovation 1 Responses

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

...Polyiso, EPS & XPS Foam Insulation & Styrofoam There are rigid insulation boards that will act as the insulation only, insulation and air barrier only, or all...

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

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

...Polyiso, EPS & XPS Foam Insulation & Styrofoam We always choose (and recommend) EPS over XPS due to the fact that XPS has much higher greenhouse gas emissions...

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