Installation Guide

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Cali Vinyl
®
Pro with Mute Step
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Flooring Installation Guide
Page 7
Subfloor Requirements
General
• Floating floors can be laid on top of most hard surfaces (e.g. concrete, ceramics, wood)
• Soft subfloors (e.g. carpets) must be removed
• The subfloor must be level – Flat to 3/16” per 10-foot radius
• The subfloor must be clean = Thoroughly swept and free of all debris
• The subfloor must be dry
• The subfloor must be structurally sound
Even though Cali Bamboo Vinyl Plank Flooring is waterproof it is NOT considered a moisture barrier. CALI always
recommends the use of a moisture barrier (like 6mil plastic) on concrete.
Acceptable Subfloor Types
• CD Exposure 1 plywood (grade stamped US PS1-95)
• OSB Exposure 1subfloor panels
• Underlayment grade particleboard
• Concrete slab
• Existing wood
• Ceramic tile (must fill in grout lines with a compatible patch compound)
• Resilient tile and sheet vinyl
Wood subfloors must be securely fastened. A best practice is to nail or screw every 6” along joists to avoid squeaking. If
leveling is needed, sand down high spots and fill in low spots with a Portland based leveling compound.
Quick Tip! If your plywood, OSB or particle board subfloor is reading higher than 13% MC it is advised to find and correct the
source of moisture intrusion before continuing installation. Cali Bamboo is not responsible for any damage caused by moisture
intrusion.
Concrete subfloors must be fully cured and at least 60 days old, preferably 90 days old. If leveling is needed, grind down
high spots and level low spots with a Portland based leveling compound.
Quick Ti
p! When laying 6 mil plastic it is always advised to overlap the seams at least 6” and cover all seams with duct tape.
Slabs on or below grade must be free of hydrostatic pressure.
Important: Cali Bamboo Vinyl Plank flooring is waterproof, however moisture intrusions from concrete hydrostatic pressure,
flooding, or plumbing leaks, along with high levels of alkalinity, can affect the floor over time. Moisture can also be trapped
below the flooring and create mold or mildew. The installer, not Cali Bamboo is responsible for making sure the concrete
moisture and alkalinity are suitable prior to installing this floor.
Ceramic Tile, resilient tile and sheet vinyl must be well-bonded to subfloor, in good condition, clean and level. We do
not recommend sanding existing vinyl floors, as they may contain asbestos. We do recommend filling any grout lines or
embossing with a compatible patch compound. Any damaged caused by skipping this step will not be covered by Cali
Bamboo.
Crawlspaces must have a minimum of a 6-mil polyethylene sheeting covering any exposed earth. Crawl spaces must have
adequate ventilation and a minimum of 18” of air space between the ground and the floor joist.
Pre-Installation
Acceptable Subfloor Thickness Requirements:
Joist System Spacing (inches on center) Minimum Thickness
12” 5/8”
12” to 16” 3/4”
16” to 19.2” 7/8”
19.3” to 24” 1-1/8”