Humidity in Concrete Floor Slabs Using situ probes) is also acceptable. Relative slab humidity should never exceed 75%.
Installing Knockout Plank
Plank should always be inspected for any dye lot variations. The Manufacturer will not warrant that different dye lots will match each other. Best results are obtained by installing the plank from the center of the room. Measure and mark at the center of each end wall. Connect these center points with a chalk line. Locate the center and establish a line at the right angle to the existing line. Installing Knockout Plank Plank should always be inspected for any dye lot variations. The Manufacturer will not warrant that different dye lots will match each other. Best results are obtained by installing the plank from the center of the room. Measure and mark at the center of each end wall. Connect these center points with a chalk line. Locate the center and establish a line at the right angle to the existing line. When planks are installed over concrete, wood, or pre-existing resilient floors apply Franklin 670 adhesive rolling the adhesive using a short nap roller (3/16 or 3/8”) and apply evenly at a rate not to exceed 1200sq’ / 4-gallon. Allow adhesives open time so it can dry to the consistency of contact cement. Tack time will vary depending upon temperature and humidity. Observing this open time is very important to ensure proper bonding and to prevent possible bleed through. At that point, you can apply planks.
Presence of alkali, moisture or hydrostatic pressure in subfloors will void the installation and all warranties.
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