Installation Instructions
10
Installation for Below Concrete Slab
• Install FOAMULAR
®
Insulation after gravel fill has been built up to grade, and thoroughly tamped.
• Lay FOAMULAR
®
Insulation in place with edges pressed together and butting the foundation wall or adjacent vertical
insulation.
• A small piece of tape (construction or duct tape) may be used to hold butt joints together while walking on during installation
and in windy conditions.
• If installing two layers of FOAMULAR
®
Insulation, off-set the seams for the second layer starting in the corner.
• Place polyethylene vapor barrier on top of FOAMULAR
®
Insulation. Overlap seams 6"-12" and seal with tape. Tape perimeter
of the vapor barrier over the top of the concrete forms for the floor slab.
• Pour concrete slab to cover all FOAMULAR
®
Insulation.
Basic Tools:
• Tape Measure
• Utility Knife
• Straightedge
• 4"-6" Serrated Knife
Site Preparations:
• Ensure gravel fill is tamped and level.
• Remove obstacles to the work area, including all
potential trip hazards.