Most internet sources say it is a rating created by the carpet manufacturer shaw.
Carpet par rating.
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.
What is the carpet par rating system.
Winding the fiber around itself strengthens the resistance to crushing.
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.
Homeowners are expected to understand that the higher the par rating number the more durable the carpet will be.
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.
The r value rating is anywhere from 1 05 to 2 15 dependent upon the thickness of the pad.
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.
I firmly believe it s very important for homeowners to have complete access to all the carpet specifications.
The higher the rating the longer it will retain its appearance.
Many carpet manufacturers have a durability scale they use to inform consumers.
5 i carpet 101 carpet 101 i 6.
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.
It is based on a 1 to 5 scale.
Par rating the par rating system stands for performance appearance retention.
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.
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.
I reached out to shaw and they stated par is not a rating they use.
Performance appearance rating is a 1 5 scale that rates how well a carpet will perform over time.
It is usually based on a number from one to five with five being the most durable.
Urethane padding has the highest r value of all padding choices.
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 contacted mohawk the only carpets i have seen use a par rating and they were able to give.
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.
Par rating is somewhat of a mystery but i included here because i get questions on it.
