2.
For a fee, subfloors must be properly prepared. All cracks, holes, joints and protrusions
must be adequately addressed to ensure a smooth, finished appearance.
3. There is usually a minimum of
18" of air space under wood subfloors – refer to local codes.
4.
On-site temperature required 48 hours prior to & during installation
is usually between 65-95 degrees. It is
maintained for at least 72 hours following installation. The slab temperature
shall never be less than 65 degrees. Inside temperature is NEVER to fall below
50 degrees to ensure quality of installation.
5.
Alkalinity = A pH reading above 9 requires corrective measures for
direct-glue installation.
6.
Moisture tests should be performed before installing over existing
resilient tile or concrete – use ASTM Standards.
7.
It is recommended that the owner or general contractor submit to
flooring contractor a written report on moisture and alkalinity ratings of the
slab to determine if substrate is suitable PRIOR to installation, according to
the industry-accepted white paper.
8.
If a powdery or overly porous surface is present, use a primer
compatible with the adhesive to provide acceptable surface for a direct-glue/double-glue
installation.
9.
Mix floor patch and apply according to manufacturer's recommendations.
10.
Do NOT apply adhesive over existing sheet vinyl, solid vinyl tile and
certain rubber products. Consult
manufacturer for correct installation procedures.
11. The use of liquid adhesive
removers may void applicable warranties.
CHECK!
12. Minimum of 90-120 days is
required for curing of concrete slab to reach acceptable dryness for
installation of carpet.
13. Generally, for adhesive
installations, a moisture emission rate above 5 pounds in 1000 square feet in
24 hours is considered unacceptable.
Consult the manufacturer for specific details.
VOCABULARY
1.
ACID – Displays a pH below 7 – Neutral is 7
2.
ALKALINITY – A base or salt.
Property of water substances with a pH greater than 7
3.
AMBIENT AIR – Surrounding air
4.
BOND TEST – 24-hour test to determine if flooring will stay adhered with
adhesive to substrate
5.
CALCIUM CHLORIDE TEST – 24 hr. test for concrete moisture emissions
6.
CONDENSATION - The conversion of the moisture in the air to water
7.
DEW POINT – Temperature at which vapor begins to condense and form water
8.
LITMUS PAPER – A material used to measure alkalinity of concrete or
water
9.
MAT TEST – Method used to check for water or moisture through substrate
by taping section of plastic to floor with duct tape
10.
pH – Acceptable range of concrete is between 5-9 pH. Indicates relative acidity or
alkalinity of
concrete.
11.
POROSITY – Ratio of volume of air within the boundaries of a solid
matter. The
substrate’s
ability to absorb liquid
12.
rH – relative humidity – moisture in vapor form in the air
13.
RMA Test – Method used to assess moisture emissions through
concrete. (Rubber
Manufacturers
Association Test)
14.
SLAB TEMPERATURE – Concrete substrate temperature no less than
65-degrees
15.
5 lbs. – Amount of moisture allowed to emit from concrete substrate per
1000 square feet
16.
VAPOR EMISSION – Water emission from the substrate in vapor form
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