Installation Guide

22
20.3 Maintain Temperature – Do not allow the temperature of indoor carpeted areas to
fall below 50
o
F (10
o
C), regardless of the age of the installation.
21. Outdoor Carpet and Synthetic Turf Installation - Outdoor carpet installed with
adhesives creates conditions quite different from those encountered indoors. Both
carpet and adhesive are subjected to extreme weather and traffic. Installation
surfaces are much more varied and often are uneven.
Note: Installing artificial turf on athletic fields is a highly specialized procedure and is outside
the scope of this standard. Consult the manufacturer for specific installation instructions.
21.1 Carpet Selection - Carpet to be installed outdoors is required to be of the
construction, and backing and fiber type recommended for outdoor use.
21.2 Site Conditions – It is required that all installation surfaces be clean, dry, sound,
cured, smooth and have adequate drainage. It is required that the temperature prior,
during, and after installation be a minimum of 65
o
F (18
o
C) and a maximum of 95
o
F
(35
o
C). Substrate temperatures are required to be between 65°F (18°C) and 85°F
(29°C). If these conditions are not attainable, contact the flooring and adhesive
manufacturer for applications to warranty.
21.3 Floor Preparation - Carpet is required to be installed over properly prepared
substrates that are suitable for the specific product and installation method
selected. All cracks, holes and flooring irregularities are required to be repaired to
ensure a smooth, finished appearance and prevent accelerated wear. Substrates
are required to be structurally sound and free of foreign substances that will
compromise the carpet or its installation. Patching compounds are required to be
suitable for the use application. Select polymer-fortified patching compounds
according to the carpet manufacturer’s instructions.
Note: Check porosity. Patched areas may be non-porous and highly alkaline, which will
prevent adequate adhesive bond. For best results, prime patched areas.
21.3.1 Wood – Cover slotted wood surfaces with an outdoor-grade plywood and prime with
a primer that is compatible with the adhesive selected. Joints in the substrate must
be properly patched and prepared to prevent telegraphing of joints. Waxed or oiled
wood surfaces present special problems and require resurfacing. Adhesive
installations over pressure-treated lumber generally are not recommended. Contact
the adhesive and carpet manufacturer for recommendations.
21.3.2 Metal – Clean metal surfaces of grease, oil, soil and rust, and properly primed.
Prepare painted metal surfaces and remove loose paint appropriately. Aluminum
surfaces should be sanded and cleaned with cleaner approved by the adhesive
manufacturer immediately before applying adhesive.
21.3.3 Surfaces such as terrazzo, ceramic and natural stone - Remove finishes and
prepare flooring surfaces to ensure adhesion. These surfaces are required to be
structurally sound and well bonded to substrate. Fill grout lines flush with approved
cementitious leveling or patching compound. Follow the open time