
Atlas Roofing Corporation
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Atlas Roofing Corporation manufactures Polyisocyanurate rigid insulation boards for both low slope and steep slope applications. Atlas offers a variety of facer options for its Polyiso boards, ranging from black organic felt paper, coated glass, composites and more. Atlas also manufactures Polyiso panels for steep slope systems needing ventilation, both with and without a radiant barrier.

Building Products of Canada Corp.
Building Products of Canada manufactures ESGARD Regular as well as High-Strength Roof insulation Wood Fibre Board which is a uniform density product that is composed of interlocking fibres impregnated with a water-repellent petroleum paraffin emulsion that allows for a high moisture resistance. Its high compressive strength also increases the rigidity and strength of the roof.

Firestone Building Products Co. ![]()
Firestone’s ISO 95+™ GL flat and tapered insulation, along with other polyiso composite products, have been approved and certified by the PIMA QualityMarkCM Certification program, highlighting the long-term thermal resistance values that lead the industry. Firestone ISOGARD™ HD Cover Board combines impact resistance, energy savings and ease of installation in a single durable product.

Foam-Control EPS ![]()
Foam-Control EPS is the leader in providing products for construction, geotechnical, industrial, and packaging applications. Foam-Control EPS insulation products are available in a range of densities necessary to provide energy efficiency, structural integrity, and cost effectiveness.

GAF ![]()
Founded in 1886, GAF is the largest roofing manufacturer in North America. Offering high quality products in steep- and commercial roofing systems, ductwork and specialty fabrics, GAF is your best and safest choice.
GenFlex Roofing Systems
GenFlex Polyiso is perfect for use with virtually all membrane roofing systems. GenFlex Taper Polyiso is tapered to provide a sloping surgace to promote positive drainage. Genflex Polyiso comes in a standard size of 48"x48" amd 48"x96: and in thicknesses from 0.50" to 2.5". The tapered Polyiso comes in three drgrees if slope per foot: 1/8", 1/4" and 1/2".

Pittsburgh Corning ![]()
FOAMGLAS® cellular glass insulation - unrivalled in performance whatever the building system where long-term effective construction, coupled with financial efficiency are demanded by owners and specifiers. For flat roofs; standing seam roofs; green roofs or car park decks; interior, exterior or cavity walls; under or over concrete and hardcore floors, there is a FOAMGLAS® solution to ensure lifetime performance without degradation.

Versico ![]()
Single source for single-ply roofing. An industry leader in single-ply roofing, Versico offers both polyiso and EPS insulation for single-ply applications. We also offer a wide range of insulation and underlayment options that – combined with Versico single-ply roofing systems – provide building owners with our single source warranties of up to 30 years.
See also:
03 5200 - Lightweight Concrete Roof Insulation
06 1650 - Gypsum & Cement Sheathing - for underlayment materials
07 2120 - Plastic Insulation - for EPS and PolyIso Boards
07 2124 - Extruded Polystyrene (XPS)
07 2280 - Nailbase Insulation
07 5700 - Coated Foamed Roofing

Atlas Roofing Corporation
![]()
Atlas Roofing Corporation manufactures Polyisocyanurate rigid insulation boards for both low slope and steep slope applications. Atlas offers a variety of facer options for its Polyiso boards, ranging from black organic felt paper, coated glass, composites and more. Atlas also manufactures Polyiso panels for steep slope systems needing ventilation, both with and without a radiant barrier.

Building Products of Canada Corp.
Building Products of Canada manufactures ESGARD Regular as well as High-Strength Roof insulation Wood Fibre Board which is a uniform density product that is composed of interlocking fibres impregnated with a water-repellent petroleum paraffin emulsion that allows for a high moisture resistance. Its high compressive strength also increases the rigidity and strength of the roof.

Firestone Building Products Co. ![]()
Firestone’s ISO 95+™ GL flat and tapered insulation, along with other polyiso composite products, have been approved and certified by the PIMA QualityMarkCM Certification program, highlighting the long-term thermal resistance values that lead the industry. Firestone ISOGARD™ HD Cover Board combines impact resistance, energy savings and ease of installation in a single durable product.

Foam-Control EPS ![]()
Foam-Control EPS is the leader in providing products for construction, geotechnical, industrial, and packaging applications. Foam-Control EPS insulation products are available in a range of densities necessary to provide energy efficiency, structural integrity, and cost effectiveness.

GAF ![]()
Founded in 1886, GAF is the largest roofing manufacturer in North America. Offering high quality products in steep- and commercial roofing systems, ductwork and specialty fabrics, GAF is your best and safest choice.
GenFlex Roofing Systems
GenFlex Polyiso is perfect for use with virtually all membrane roofing systems. GenFlex Taper Polyiso is tapered to provide a sloping surgace to promote positive drainage. Genflex Polyiso comes in a standard size of 48"x48" amd 48"x96: and in thicknesses from 0.50" to 2.5". The tapered Polyiso comes in three drgrees if slope per foot: 1/8", 1/4" and 1/2".

Pittsburgh Corning ![]()
FOAMGLAS® cellular glass insulation - unrivalled in performance whatever the building system where long-term effective construction, coupled with financial efficiency are demanded by owners and specifiers. For flat roofs; standing seam roofs; green roofs or car park decks; interior, exterior or cavity walls; under or over concrete and hardcore floors, there is a FOAMGLAS® solution to ensure lifetime performance without degradation.

Versico ![]()
Single source for single-ply roofing. An industry leader in single-ply roofing, Versico offers both polyiso and EPS insulation for single-ply applications. We also offer a wide range of insulation and underlayment options that – combined with Versico single-ply roofing systems – provide building owners with our single source warranties of up to 30 years.