Current Inventory - Polyiso 
1/2"x4'x8' Felt Back | SOLD OUT!
Factory direct new off grade polyiso with fiberglass (kraft) backer on both sides.  It is perfect for fully adhered roof projects

​Off grade means that there is a manufacturing defect or damage that prevents the manufacturer from selling as "grade A".  Most of this insulation has been down graded due to minor thickness variation.
3/4"x4'x8' Foil Back | $7.50
Factory direct new off grade polyiso with foil backer on both sides.  

​Off grade means that there is a manufacturing defect or damage that prevents the manufacturer from selling as "grade A".  Most of this insulation has been down graded due to minor thickness variation.
1"x4'x8' Foil Back | $10.00
Factory direct new off grade polyiso with foil backer on both sides.  

​Off grade means that there is a manufacturing defect or damage that prevents the manufacturer from selling as "grade A".  Most of this insulation has been down graded due to minor thickness variation.
1.5"x4'x8' Foil Back | $12.00
Reclaimed Celotex Thermax SP-1 polyiso with foil backer on both sides.  

​1.5"x4'x8' Foil Back | $8.00
Same reclaimed polyiso as above that the foil backer on one side is damaged due to the ballast from its original use.  These sheets are not be as rigid.
1.5"x4'x8' Felt Back | $13.00
Factory direct new off grade polyiso with fiberglass (kraft) backer on both sides.  

​Off grade means that there is a manufacturing defect or damage that prevents the manufacturer from selling as "grade A".  Most of this insulation has been down graded due to minor thickness variation.
1.5"x4'x8' Foil Back | $15.00
Factory direct new off grade polyiso with foil backer on both sides.  

​Off grade means that there is a manufacturing defect or damage that prevents the manufacturer from selling as "grade A".  Most of this insulation has been down graded due to minor thickness variation.
2"x4'x8' Felt Back | $16.00
Factory direct new off grade polyiso with tan fiberglass (kraft) backer on both sides. 

2"x4'x8' Foil Back | $20.00
Factory direct new off grade polyiso with foil backer on both sides.  

2"x4'x10' Foil Back | $25.00
Factory direct new off grade polyiso with foil backer on both sides.  

​Off grade means that there is a manufacturing defect or damage that prevents the manufacturer from selling as "grade A".  Most of this insulation has been down graded due to minor thickness variation.
2.5"x4'x8' Foil Back | $25.00
Factory direct new off grade polyiso with foil backer on both sides.  

​Off grade means that there is a manufacturing defect or damage that prevents the manufacturer from selling as "grade A".  Most of this insulation has been down graded due to minor thickness variation.
3"x4'x8' Foil Back | $30.00
Factory direct new off grade polyiso with foil backer on both sides.  Many have white foil on one side!

3"x4'x10' Foil Back | $35.00 Only 10 Left!
Factory direct new off grade polyiso with radiant barrier foil backer on both sides.

​Off grade means that there is a manufacturing defect or damage that prevents the manufacturer from selling as "grade A". Most of this insulation has been down graded due to minor thickness variation.
4.5"x4'x8' Felt Back | $38.00  
​Factory direct new off grade polyiso with fiberglass (kraft) backer on both sides.  

​Off grade means that there is a manufacturing defect or damage that prevents the manufacturer from selling as "grade A".  Most of this insulation has been down graded due to minor thickness variation.
Find the latest deals on close-out and damaged polyiso at the Bargain Corner!

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