Carpet Par Rating

Performance appearance rating is a 1 5 scale that rates how well a carpet will perform over time.
Carpet par rating. Par rating the par rating system stands for performance appearance retention. Par or performance ratings. It is based on a 1 to 5 scale. Twist the number of times the fibers are turned in a one inch length.
A low rating is perfect for use with under floor heating while a high rating means the carpet and underlay already offer good insulation and therefore isn t suitable for under floor heating. 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. Par rating is somewhat of a mystery but i included here because i get questions on it. For example carpet with a 4 0 tarr will retain its original new texture appearance longer in various traffic conditions than carpet with a 3 0 rating.
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. The r value rating is anywhere from 1 05 to 2 15 dependent upon the thickness of the pad. 5 i carpet 101 carpet 101 i 6. Both the carpet and the underlay will have a separate tog rating and a combined rating over 2 0 isn t really suitable for underfloor heating.
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. These ratings take into account the total of the carpet and not just how the face fiber will perform but they do not reflect any other variables such as staining maintenance and poor installation. It is usually based on a number from one to five with five being the most durable. Homeowners are expected to understand that the higher the par rating number the more durable the carpet will be.
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. I don t like their rating systems because i don t think it is an accurate true to life calculation. I reached out to shaw and they stated par is not a rating they use. 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.
I contacted mohawk the only carpets i have seen use a par rating and they were able to give. Most internet sources say it is a rating created by the carpet manufacturer shaw. Urethane padding has the highest r value of all padding choices. The higher the rating the longer it will retain its appearance.
Winding the fiber around itself strengthens the resistance to crushing. 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.