was designed specifically for under slab applications. Manufactured using
two separate layers of 1/4" polyethylene foam with a pure aluminum
center. This product is available in 4' x 63' rolls for easy application.
It is simply unrolled and taped together ( this is necessary for a complete
vapor barrier to be achieved). Slab-Shield provides excellent thermal
performance, and a vapor barrier all in one easy to use product. With
Slab-Shield there's no time wasted installing 4' x 8' foam boards. With
a puncture resistance of 92.9psi you can work and walk on top of it without
it crumbling apart. One major difference between Slab-Shield and the
foam board insulations is the pure aluminum center-leaf of the Slab-Shield.
It is important to know that in most applications the ground temperature
that the insulation is going to be directly exposed too is a constant
55 degrees or lower all year round. Mass insulations (foam boards/extruded
polystyrene) even though they may have high R-values (depending on thickness)
will eventually stabilize at that constant ground temperature of 55 degrees
or lower depending on climate. Therefore the mass insulation provides
a constant drain on the radiant system and the slab. This is where the
pure aluminum center-leaf comes into effect. It provides an effective
thermal-break between the foam layers and prevents the slab or heating
system from seeking the cold ground below it, thereby allowing the slab
to reach temperature sooner and help the system perform more efficiently.
roll size is 4' x 63' (252 sq.ft.)