R value is calculated not from the actual materials as much as from the thickness of the carpet.
What is par rating in carpeting.
Performance appearance rating is a 1 5 scale that rates how well a carpet will perform over time.
A class 2 rating is for heavier traffic such as on stairs or in halls.
Most internet sources say it is a rating created by the carpet manufacturer shaw.
Ask your dealer to show you the cri chart.
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.
Par rating is somewhat of a mystery but i included here because i get questions on it.
I reached out to shaw and they stated par is not a rating they use.
R value is a term used to describe the thermal resistance rating of carpet or in plain and simple terms the insulating value.
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 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.
Carpet can be looped with a low profile pile construction which is known for maintaining its appearance or have loops of different heights to form a textured pile.
Within each rating there s a range of options depending upon your budget and the feel you want.
Par or performance ratings.
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.
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.
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 firmly believe it s very important for homeowners to have.
How to install carpet with professional help.
Many locally owned carpet dealers do list all or some the carpet specs on their carpet samples but some do not list any at all.
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.
