Styrofoam / Discussions

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

We have a concrete basement in decent condition that's about 20 years old in Boulder CO and having had mitigation installed for high radon levels we now want t...

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

What is the most efficient passive home design?

...styrofoam 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...

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

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

...styrofoam 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. ...

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

What kind of insulation do you recommend to put on my exterior sheet rock wall?

...styrofoam or similar) similar to the ones they use all over Europe. I am looking for a pointer on where to start and find more information. Thanks,

Posted by Uwe Thomas May 22, 2020, 10 p.m. Insulation and soundproofing 0 Responses

What's the difference between a slab on grade and a monolithic foundation?

...styrofoam forms - is there a difference or are they the same thing? A slab on grade literally means a slab of concrete on grade (ground level), as opposed to ‘b...

Posted by Ronaldo Johnitas Dec. 10, 2019, 6:12 a.m. Slab on Grade 4 Responses

How do you insulate a cottage crawlspace? It's in the Haliburton Highlands

...styrofoam boundary. One half has all the plumbing, 2 radiators, spray foam around perimeter and a dehumidifier with hose exiting to outside. The vents on this s...

Posted by Beata Domanska May 25, 2020, 11:38 a.m. Crawl spaces 1 Responses

Can you add external insulation to a brick home?

...Styrofoam Rockwool isn’t harmed by moisture and it lets moisture move right through it, which is a very good thing to use for an exterior insulation renovatio...

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

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

...Styrofoam It's still a great insulation, just not quite up to the R6.5 + levels that were originally claimed. So the more 'energy savvy' builders we've heard ...

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

Can Rockwool be installed over Type II EPS?

...Styrofoam Sometimes adding XPS or EPS rigid foam to the outside of a house can cause problems since it can trap moisture. That said, it is more of a problem w...

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

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

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

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?

...Styrofoam We always choose (and recommend) EPS over XPS due to the fact that XPS has much higher greenhouse gas emissions than EPS. So if you are looking for ...

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

Can I purchase XPS made with HFOs?

We start a new residential build Spring 2020. Can I purchase XPS panels with HFOs anywhere? If not, any idea when they will be available? If they aren't availa...

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