Insulation Choices: EPS or XPS?

Originally posted in Concrete Construction

As a specifier, architect and contractor….you must make well-informed decisions when it comes to below-grade, under slab, and cavity wall insulations in your projects.  Below are two informative articles listing the similarities and differences between both EPS (expanded polystyrene) and XPS (extruded polystyrene) insulations.

Insulation Choices:  Whether to use EPS or XPS can be a matter of cost.

Originally posted in Concrete Construction, November 2013, written by Mayilvahanan, Insulfoam’s Product-Marketing Manager

EPS insulation helps reduce heat loss through concrete foundations and floor slabs.

EPS insulation helps reduce heat loss through concrete foundations and floor slabs.

What’s the difference between XPS insulation and EPS insulation, other than a single letter? For installation on concrete foundations and under floor slabs, the rigid foam insulation you choose can make a difference of tens of thousands of dollars on a project. A careful evaluation of these materials’ performance attributes against the project’s needs can dramatically shrink labor and material costs. The savings could mean the difference between a profitable job and one you just have to chalk up to experience.

When it comes to concrete and insulation, contractors tend to be most familiar with extruded polystyrene (XPS). Yet, expanded polystyrene (EPS) performs as well or better than XPS, and at a substantially lower cost. Below are three important factors to consider when comparing these two insulations for any belowgrade or under-slab applications, read FULL article to see more side by side comparisons of EPS and EXP for these insulation factors:  1.) Compressive strength  2.) Moisture retention  3.) Insulating capability.

Full Article:  Insulation Choices

EPS vs XPS:  Insulation industry advances with EPS developments

Originally posted on Concrete Construction, February 2014, written by Frank Keisecker, ACH Foam’s VP of Sales and Marketing

There is much competition among polystyrene insulation manufacturers for the below-grade, under slab, and cavity wall insulation market. Claims made by the XPS (extruded polystyrene) industry are conflicting with that of EPS (expanded polystyrene) manufacturers. The validity of some claims is debatable. Specifiers, architects, and contractors must make well-informed decisions.

Read FULL article to thoroughly understand the similarities and differences between EPS and XPS insulations.  Key differences include: 1.) Moisture resistance 2.) Environmental impact  3.) Long-term R-value  4.) Compressive strength   5.) Panel sizes  6.) Cost per R-value.

Full Article:  EPS vs XPS

EPS QUESTIONS

Ram Mayilvahanan

Ram Mayilvahanan

Contact Ram Mayilvahanan, Insulfoam’s Product-Marketing Manager

Geofoam Helps Mold the Construction of Chicago’s New Downtown Maggie Daley Park

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Maggie Daley Job Site Cam, Dec 7th

Maggie Daley Job Site Cam, Dec 7th

With construction well underway the former Daley Bicentennial Plaza (next to Millennium Park) is on its way to being one of the “greenest” parks in America. The park is atop the large East Monroe Street Parking Garage, which has been restructured extensively including a new membrade above the garage which will also serve as the foundation that the park will sit on top of.

The new park, offers sweeping views of Lake Michigan, and combined with Millenium park “Peanut Park” will offer 45-50 acres of green roof over a downtown city parking garage.
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So what does Insulfoam’s EPS Geofoam have to do with it? With about 60% of earthworks completes, crews have removed 82,000 cubic yards of existing fill (that existed beneath the soil for decades). Some of this is in fact lightweight fill material like Geofoam, and is still in excellent condition and is able to be recycled for reuse to create “hills” in the park. Geofoam will also support the base below new paths for bikers and walkers to get through to the lake paths.
Maggie Daley Park Rendering

Maggie Daley Park Rendering

The site itself now has the required EPS Geofoam blocks stock piled and ready for installation. In the days to come the installation of the acres of Geofoam will be seen on the bottom right hand side of THIS JOBSITE CAMERA.

Bob O’Neill, president of Grant Park Conservancy, in an article from the Chicago Sun Times called the park “more natural and much more informal” than Daley Bicentennial Park. And very kid-friendly, featuring a three-acre play garden, ice rink, climbing walls, a skating rink in the shape of a ribbon .“You’ll be able to walk up hills and see the lake,” O’Neill said. “When this is done . . . it’s going to be a much more green, sort of organic flow. Whereas Millennium Park is more structural and formal, this is more nature-oriented.”

INSULFOAM GEOFOAM QUESTIONS?

Contact Nico Sutmoller, Below-Grade & Geofoam Specialist

nico.sutmoller@insulfoam.com  |  Connect with Nico on LinkedIn|  Read more on Insulfoam.com

Nico Sutmoller, Insulfoam Geofoam Specialist

Nico Sutmoller, Insulfoam Geofoam Specialist