top of page


EnduraDuct is a Proud Distributor of Alleguard Rigid Foam Board Insulation. 

Please call or email for updated Inventory.


We have what you are looking for !!!

Pick up in our Saint Charles Location today

Or let us arrange shipping for you

High R Values 
25 PSI
Great Pricing

Rigid Foam Board Insulation for sale. Envirosheet, Comparable to Owens Corning FOAMULAR at a fraction of the price. Insulation Board. Rigid Insulation. Continuous Insulation.


SilveRboard Graphite is a high performance, non-structural, rigid insulation board made from closed cell Expanded Polystyrene (EPS) with a layer of reflective metalized polypropylene film lamination on both sides. The EPS core is embedded with graphite particles changing the color from white to grey greatly increasing the thermal resistance. Designed to be installed as a continuous insulation to reduce thermal bridging in the building envelope. 


                          - Exterior above grade walls 

                          - Component of building recladding 

                          - Interior below grade foundation walls 


Envirosheet is a non-structural, rigid insulation board made from closed cell Expanded Polystrene (EPS) offering cost effective performance. Designed to be installed as continuous insulation, reduce thermal bridging, and directly improve building envelope performance. Envirosheet's exceptionally low, long term, Inservice water absorption properties allow it to maintain its specified thermal performance and durability when installed for slab on grade or BELOW GRADE applications. 


                      -Under concrete slab

                      -Foundation walls

                      -Flat and sloped roofs

                      -Ice Rinks 

                      -Frost Walls 

                      -Exterior above grade walls 

Foam Board Options

bottom of page