5 i carpet 101 carpet 101 i 6.
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.
Twist the number of times the fibers are turned in a one inch length.
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.
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.
Winding the fiber around itself strengthens the resistance to crushing.
Par or performance ratings.
Performance appearance rating is a 1 5 scale that rates how well a carpet will perform over time.
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.
Many carpet manufacturers have a durability scale they use to inform consumers.
I don t like their rating systems because i don t think it is an accurate true to life calculation.
The r value rating is anywhere from 1 05 to 2 15 dependent upon the thickness of the pad.
I reached out to shaw and they stated par is not a rating they use.
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.
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.
It is based on a 1 to 5 scale.
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.
The higher the rating the longer it will retain its appearance.
I contacted mohawk the only carpets i have seen use a par rating and they were able to give.
Par rating is somewhat of a mystery but i included here because i get questions on it.
What is the carpet par rating system.
Homeowners are expected to understand that the higher the par rating number the more durable the carpet will be.
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.
Most internet sources say it is a rating created by the carpet manufacturer shaw.
Par rating the par rating system stands for performance appearance retention.
I firmly believe it s very important for homeowners to have complete access to all the carpet specifications.