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.
Carpet par rating 3 5.
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.
Homeowners are expected to understand that the higher the par rating number the more durable the carpet will be.
When comparing similar quality carpets side by side you must consider the tuft twist rating to help you determine which carpet is the better choice.
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.
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 the par rating system stands for performance appearance retention.
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.
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.
I reached out to shaw and they stated par is not a rating they use.
Twist the number of times the fibers are turned in a one inch length.
Winding the fiber around itself strengthens the resistance to crushing.
I contacted mohawk the only carpets i have seen use a par rating and they were able to give.
However i don t understand why the par rating is only 3 25 plus this carpet does not have a soft bac.
Performance appearance rating is a 1 5 scale that rates how well a carpet will perform over time.
Striking iii dream weaver soft polyester carpet made with purecolor fiber system stain and fade resistant carpet.
The higher the rating the longer it will retain its appearance.
It is based on a 1 to 5 scale.
5 i carpet 101 carpet 101 i 6.
Par or performance ratings.
For this reason a carpet with a higher tuft twist 5 5 to 7 5 will retain its like new appearance longer and tolerate a higher level of foot traffic.
Par rating is somewhat of a mystery but i included here because i get questions on it.