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Evaluating structural performance and deciding what Quaker products are suitable for your project is one of the most important aspects of the purchasing process. The main areas of focus for structural performance are understanding what the Design Pressure (DP) and Performance Grade (PG) evaluations mean in relation to your project.
A rating given to products that meet all performance testing requirements identified by NAFS
Identifies the wind or static snow load that a product is rated to withstand before failing
There are four performance classes (R, LC, CW, AW) assigned to Quaker windows and doors depending on the test results.
ASTM E 283
ASTM E 330
ASTM E 331 for AW products and ASTM E 547 for R, LC and CW products
ASTM E 2068
Q-Series and R45F: No ratings on product list
Quaker’s products are meticulously tested to ensure accurate structural performance figures are always achieved.
The final DP score is calculated according to the product withstanding 1.5 times the design pressure for 10 seconds before irreversible damage occurs.
As part of the PG class evaluation, DP is outlined in the rating title to indicate the structural performance of the unit.
To achieve this rating, the example product would have to withstand 75 psf to be rated DP50. The higher the DP rating, the stronger the window or door.
If you desire the very best in structural performance, Quaker windows with OptiCore technology are the answer. Featuring a sealant-injected double corner key construction design, aluminum windows with OptiCore technology contain maximum strength in the corner joinery and frame to handle almost any project requirements.
To learn about the exact performance specifications for Quaker commercial windows and doors, view the Quaker Commercial product list page or contact our expert staff who can help you find the best solution for your project.
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