Coming Unglued

Bond Failure Symptoms and Solutions

Despite the carpet industry’s efforts to improve the quality of installation workmanship, bond failure in commercial carpet installations remains a leading cause of complaints, lawsuits and premature replacement. Annual losses from such failures run into the millions of dollars, and ripples and open seams caused by bond failure create a high-liability safety hazard. This bulletin discusses the most common types of failure, their causes and methods of prevention. The highlighted boxes are selected quotes from applicable sections of the Carpet and Rug Institute’s CRI 104 Standard for Installation of Commercial Textile Floorcovering Materials.

Continue reading “Coming Unglued”

Shading, Pile Reversal, and Pooling

To varying degrees, most cut-pile carpets exhibit a characteristic known as shading–apparent shade variations caused by relatively slight changes in pile lay from traffic, vacuuming and general use. Since the sides of fibers reflect more light than their tips, pile laying away from the observer appears lighter, while pile laying toward the observer appears darker. Areas that appear dark when viewed from one direction appear light when viewed from the opposite direction, and vice versa. These changes in pile lay are temporary and usually can be removed easily by vacuuming or brushing the pile.

Continue reading “Shading, Pile Reversal, and Pooling”