DPRating value

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Answers the question homeowners have about design pressure ratings when considering new replacement windows for their home.

http://www.newyorksash.com Scot Hayes of New York Sash talks about energy ratings on windows. What is an R value? What is a U value? find out more in this ...

Look at U Factor and SHGC ratings to make an informed decision on your next window upgrade.

What are Canadian replacement window Energy Ratings? Energy Ratings (ER) is a metric rating given to a window based on the unit's performance levels ...

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