Instructions / Assembly
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This information, offered as a customer service, is based on Mohawk Group’s engineering test and eld experience. It is
intended for installers with professional experience to be used at their discretion and risk. Mohawk Group does not guarantee
results and assumes no liability in connection with these instructions
SITE CONDITIONS
Concrete slabs must be tested for moisture by the current version of ASTM F2170. (Consult CRI 104 part 6.2 for standard test
method for determining relative humidity on concrete oor slabs using In-Situ Probes.) Below are the requirements for each
Mohawk Group Carpet Tile products.
Ecoex NXT & Ecoex MATRIX
The following applies to new pour concrete:
On or Below Grade:
An ASTM E-1745, Class B minimum vapor barrier must be in place and directly in contact with the concrete
• If reading is below 95% RH, Enpress adhesive or FlexLok tabs only
• If reading exceeds 95% RH, and no signs of visible moisture are present, Mohawk FlexLok tabs are an approved
installation method. For thorough guidelines regarding site conditions, oor prep and installation consult the complete
set of FlexLok installation instructions.
Above Grade:
• If reading is below 95% RH, Enpress adhesive or FlexLok tabs only
• If reading exceeds 95% RH, and no signs of visible moisture are present, Mohawk FlexLok tabs are an approved
installation method. For thorough guidelines regarding site conditions, oor prep and installation consult the complete
set of FlexLok installation instructions.
The following applies to renovation:
On or Below Grade:
An ASTM E-1745, Class B minimum vapor barrier must be in place and directly in contact with the concrete
• If reading is below 95% RH, Enpress adhesive or FlexLok tabs only
• If reading exceeds 95% RH, and no signs of visible moisture are present, Mohawk FlexLok tabs are an approved
installation method. For thorough guidelines regarding site conditions, oor prep and installation consult the complete
set of FlexLok installation instructions.
Above Grade:
• If reading is below 95% RH, Enpress adhesive or FlexLok tabs only
• If reading exceeds 95% RH, and no signs of visible moisture are present, Mohawk FlexLok tabs are an approved
installation method. For thorough guidelines regarding site conditions, oor prep and installation consult the complete
set of FlexLok installation instructions.