Installation Guide

15
recommendation for that specific style. Seal cut edges at seams with proper seam
adhesive applied as recommended by the carpet or adhesive manufacturer. Roll
installed carpet according to manufacturer recommendations.
15.4 Pre-applied Adhesive Systems (“peel-and-stick”) - Pressure sensitive adhesives
sometimes are applied to attached-cushion backings during manufacture. Backings
of this type have special floor preparation requirements. Consult the carpet
manufacturer for recommended installation procedures and the use of primers, if
needed.
15.5 Hook and Loop Technology - This specialized installation system uses hooked
tape and a looped fabric to cover the entire underside of the carpet. The system
involves detailed and specific installation practices. Consult the carpet manufacturer
for recommended installation procedures.
16. Stretch-in Installation
This method involves installing carpet under tension over a separate cushion,
using tack strip fastened at all walls and other vertical abutments around the
perimeter of the area.
16.1 Relaxing/Conditioning Carpet – Refer to Section 7.11.
16.2 Tack strip –It is required that tack strip be a minimum of one inch (25 mm) wide
and ¼ inch (6 mm) thick. Architectural strip two inches in width (50mm) with three
rows of pins, or two conventional strips with two rows of pins each are required for
stretching areas exceeding thirty feet to provide secure attachment of the carpet
and additional shear strength. To prevent possible injury to building occupants, it
is required that the pins on tack strip not protrude through the carpet being
installed.
Additional tack strip installation specifications include:
• Securely fasten tack strip to maintain the tension _ provided by power
stretching. Nailed or stapled tack strip is required to have a minimum of two
fasteners per piece.
• Place tack strip with the pins angled toward the vertical abutment.
• The gully, or distance between the tack strip and vertical abutments, is required
to be slightly less than the thickness of the carpet but not exceed ⅜ inch (9 mm).
• Avoid installing tack strip across door openings and/or sills.
• Cut tack strip to follow the contour of door casings and other irregularly shaped
abutments.
• Do not staple carpet to tack strip.
• On radiant-heated floors, use manufacturer’s approved adhesive to secure
tack strip do not use nails or screws to prevent damage to heating system.
16.3 Separate Cushion Selection –It is required that the cushion conform to carpet
manufacturer recommendations for the specific product being installed. Failure to
follow these recommendations for cushion may void manufacturer warranties.
These recommendations may differ, depending on the style and construction of