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.
Carpet par rating definition.
Understanding the par carpet rating system carpet durability face weight how to choose the best aquarium light understanding the par carpet rating system pics of.
It s determined by the carpet manufacturer and it s usually a 1 5 rating system.
A cushion with an r value of 2 and a carpet with an r value of 1 would have an r value of 3 for the composite.
Having explained the science how can this information help make sound floor covering decisions in terms of energy.
Par or performance ratings performance appearance rating is a 1 5 scale that rates how well a carpet will perform over time.
After testing the carpet is given a rating on a scale of 1 5 with 5 being the best result.
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.
Since the rating is created by the same company selling the carpet it s in your best interest to not put too much stock in it.
The pile density rating is the key to carpet durability.
Gauge is how far apart the yarns are in the carpet across the width such as 1 8 gauge which is an eighth of an inch or 1 10 gauge which is a tenth of an inch.
Dig your fingers into the pile of the carpet.
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.
For most areas of the home carpet pads should have a minimum density rating of 6 and be around 3 8 to 1 2inch thick but opt for a slightly thinner and more dense pad around 8 for high traffic areas like stairs and be sure to choose a purpose specific pad if you are carpeting over heated flooring.
Think of it like a densely wooded forest where the trees are thick and packed closely together.
Heavy change a result of 2 or more is needed to pass and a.
Wear rating durability rating wear rating is a subjective measure of how long the carpet will last.
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.
What does par rating mean for carpet.