FOAMGLAS® PERINSUL® SL is an innovative product developed by PITTSBURGH CORNING to eliminate thermal bridges at joints within wall constructions. FOAMGLAS® PERINSUL® SL blocks, manufactured from FOAMGLAS®, are designed to form an effective insulated joint between vertical wall insulation and horizontal floor or roof insulation. Possessing all the thermal properties for which FOAMGLAS® is well proven, together with the exceptionally high compressive strength of FOAMGLAS®, cold bridging is eliminated and structural integrity maintained.

Applications:
FOAMGLAS® PERINSUL® SL has a compressive strength of 3000 kN/m2 and, when a safety factor of 3 is used, it has a load bearing capacity of 1 N/mm2 without compression or deformation. It can therefore be installed at the base of structural walls in the following situations:

• inner walls (block or brick)
• outer walls (block or brick)
• parapets
• access points
• support areas for roof trusses
  

This thermal image shows the major cold bridge and high thermal loss at the junction between the floor slab and wall construction.

Junction of External Wall / Ground Floor Basement
	Optimised thermal bridge free construction. The PERINSUL® SL block is fitted under the external wall to stop the cold bridge. a / b e [W/m•K] i,o i,u [W/m•K] fo / fu [-] 100 / 60 0,020 0,034 0,097 0,931 0,882 120 / 80 0,062 0,032 0,121 0,922 0,899 140 / 100 0,092 0,031 0,138 0,929 0,909
Junction Basement / Ground Floor
	Optimised thermal bridge free construction. The PERINSUL® SL block insulates between the wall and ground floor slab. a / c e [W/m•K] i [W/m•K] f [-] b = 175 100 / 60 120 / 80 140 / 100 -0,055 -0,038 -0,026 0,118 0,113 0,110 0,834 0,847 0,855 b = 240 100 / 60 120 / 80 140 / 100 -0,067 -0,043 -0,028 0,127 0,124 0,122 0,835 0,847 0,854

- Values:
The calculation is based on the building elements; this gives a design value of the -value (heat loss coefficient for thermal bridge (W/mK) with reference to the length of the element).

Using FOAMGLAS®, -values can be achieved of zero or even negative values. The calculation follows the European regulations for thermal energy saving, taking into consideration the heat loss by thermal bridges in an optimal way.

FOAMGLAS® for Installation