Installation Guide

Installation - Below-Grade, Perimeter
Foundation Insulation
In order to achieve full thermal performance, boards should
be butted securely and, where plumbing, electrical or other
penetrations exist, the board should be cut to t tightly
around the penetration. Use caulk, sealant or spray foam to
seal around penetrations.
1. Install insulation board to the exterior side of masonry walls
after the waterproong membrane has cured according to the
manufacturer’s installation instructions. If the surface of the
cured waterproong membrane is not tacky enough to hold
the insulation board in place until backlling takes place, then
an adhesive can be used to secure the insulation board to
the wall. If the adhesive manufacturer provides instructions for
the amount and pattern required for the application, use that.
Otherwise, apply a line of adhesive across the board starting
at one edge and repeating every 24” to the other edge. Many
common adhesives are compatible with Kingspan GreenGuard
®
XPS Insulation Board. Go to www.kingspaninsulation.us and
refer to Technical Bulletin 11- Adhesive, Spray Foam and Primer
Compatibility.
2. Begin by aligning the rst board at a corner of the structure
making sure that the bottom ts snugly to the ashing over the
footer.
3. Place backll directly in contact with the insulation board.
Remove all large rocks and other debris that may damage
insulation board during backlling.
4. Do not leave Kingspan GreenGuard
®
XPS Insulation Board
exposed above grade. If insulation board is exposed above the
grade line, then it must be covered with an exterior cladding
material or foundation covering.
Installation - Below-Grade, Slab-On-
Grade Insulation
In order to achieve full thermal performance, boards
should be butted securely and, where plumbing, electrical,
ventilation or other penetrations exist, the board should be
cut to t tightly around the penetration.
1. Place a 6-mil polyethylene vapor retarder sheet over
graded, smooth dry, well tamped ll. Lap sheet a minimum
of 2 in. and extend vertically up the perimeter foundation
wall a minimum of 2 in.
2. Lay Kingspan GreenGuard
®
XPS Insulation Board over
the vapor retarder sheet, cutting to size as necessary.
Place adjacent insulation boards with joints staggered.
Place subsequent layers of insulation board over the lower
layer with boards placed perpendicular to the previous
layer with joints staggered.
Insulation Board
1-Layer Staggered-Joint Pattern
2-Layer Staggered-Joint Pattern