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Technical Data

Our High Performance Green Building System (HPGBS) is constructed of 100% recycled tubular galvanized steel and expanded polystyrene (EPS). Steel has long been the world’s most recyclable material. In addition, EPS possesses inherent cradle-to-cradle design characteristics and is recyclable.

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Allowable Axial Loads DOWNLOAD PDF NOW
3 Part Specification DOWNLOAD PDF NOW
Code Compliance DOWNLOAD PDF NOW

Buildings constructed with HPGBS™ will utilize far less energy than those built using conventional means and methods and because the majority of the material is prefabricated at our state-of-the-art manufacturing facility we are able to minimize waste at the jobsite.

Thermal resistance values (r*)

 Wall Panel Thickness
9 ¼"7 ¼"6"
at 40° F383025
at 75° F352823
 Roof Panel Thickness
12"8"6"
at 40° F503325
at 75° F463023

*R means resistance to heat flow. The higher the R–Value, the greater the insulating power. Ratings listed above are based on Cellofoam® Technical Data. Actual R–Values achieved will vary based on building design.

Galvanized Steel Benefits

Highest strength-to-weight ratio of any building material
100% recyclable
Non-combustible – does not burn nor contribute fuel to the spread of fire
Inorganic – will not rust, rot, warp, split, crack or creep
Dimensionally stable – does not expand or contract with moisture content
Consistent material quality – produced in strict accordance with national standards, no regional variations
 Source: Steel Framing Alliance

EPS Benefits

CFC and HCFC Free
Provides stable R-value and does not need to be adjusted for age
Recycled content can be specified for certain building applications
Mold resistance tests favorably in accordance with ASTM C1338
Does not adversely affect indoor air quality
Lightweight
 Source: EPS Molders Association

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HPGBS™ US & International Patents Pending
1170 Ivanhoe Road | Cleveland, OH 44110-3250
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*HPGBS™ may contribute to the total project percentages and values used to determine and achieve LEED v3 NC & MR points.
Green-Source Products, LLC can not guarantee the achievement of LEED points.