BUCKLING & RIPPLING IN CARPET
There are several things that will cause a carpet to buckle or form ridges or ripples.
If you see this problem, it could be due to defect in the manufacturer's latex, or an installation error from improper cushion, or a temporary condition from cleaning.
If the problem is inherent in manufacturing, then testing can be done for DIMENSIONAL STABILITY. DIMENSIONAL STABILITY does not have official standards. In years past a combined percentage greater than three percent was not acceptable. Furthermore a percentage less than 2.5 was required to consider the carpet good. Currently some mills would say that yarn style and woven backing material would be a factor in determining a higher acceptable percent on this test.
The backside of the carpet above shows oblong stretch marks from the nail of the tackless strip on the right or bottom-side, but not on the left side. Thus this carpet was stretched in the length only creating buckling in the length.
The temperature and humidity on the day that the carpet was installed could also have an effect on a carpet buckling and CRI STANDARDS for both temperature and power stretching are given below.
Concerning Temperature and Humidity with respect to Site Conditions the CRI105 - 1994 says this:
Concerning power-stretching, the CRI105 says:
If the problem is a temporary problem from cleaning, then it called 'differential of expansion'. It will go away upon drying with no lasting effect.
LIQUIDS THAT ARE EXCESSIVELY APPLIED OR SPILLED GETS INTO THE CARPET BACKING.
If excessive liquids are spilt into the carpet such as beverages or is there for prolonged wetting from water, then buckling can also be created. Also, dry solvent in excess will also cause a carpet to buckle and/or delaminate.
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