The r value rating is anywhere from 1 05 to 2 15 dependent upon the thickness of the pad.
Carpet par rating 3.
I reached out to shaw and they stated par is not a rating they use.
While i m sure they go through a lot of trouble and expense to provide this rating system i personally think it falls short of being a trustworthy gauge for consumers.
I contacted mohawk the only carpets i have seen use a par rating and they were able to give.
I firmly believe it s very important for homeowners to have complete access to all the carpet specifications.
Three 3 ways carpet dealers can easily obtain carpet specifications for you.
Urethane padding has the highest r value of all padding choices.
Most internet sources say it is a rating created by the carpet manufacturer shaw.
Par rating is somewhat of a mystery but i included here because i get questions on it.
The par carpet rating system created by shaw industries designates a number from one to five rating carpet durability based on a typical family of four scenario.
After vigorous industry standard wear simulating 20 000 foot traffic the worn carpet is compared to an unworn piece to determine how the piece has changed.
The carpet padding also effects room temperature and some may say that the padding under the carpet does just as much or more insulating than the actual carpet itself.
Homeowners are expected to understand that the higher the par rating number the more durable the carpet will be.
Homeadvisor s best carpet guide gives tips on how to choose carpets by type material fibers nylon thickness low pile plush durability softness and more.
They might think the customer should select their new carpet based on price color and perhaps a durability rating like shaw s par rating system.
The par carpet rating system was created by shaw industries and designates a number from one to five rating a carpet s durability based on a typical family of four scenario.
For most areas of the home carpet pads should have a minimum density rating of 6 and be around 3 8 to 1 2inch thick but opt for a slightly thinner and more dense pad around 8 for high traffic areas like stairs and be sure to choose a purpose specific pad if you are carpeting over heated flooring.
Performance appearance rating is a 1 5 scale that rates how well a carpet will perform over time.
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