Roofs - Insulation (Waterproofing Systems)

2 Composite Board Insulation

Posi-Slope Western

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Soprema Inc.

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4 XPS (Extruded Expanded Polystyrene Foam)

Tech-Crete Processors Ltd.

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Dow Chemical Canada Inc.

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Owens Corning Canada

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5 EPS (Expanded Polystyrene Foam)

Mansonville Plastics (B.C.) Ltd.

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Plasti-Fab

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7 Polyisocyanurate Foam

Atlas Roofing Corporation

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Carlisle Syntec Systems Canada

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Firestone Building Products

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Hunter Panels

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Johns Manville Corporation

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IKO Industries Ltd.

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Siplast

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Soprema Inc.

Sopra-Iso Plus

8 Fibreboard Roof Insulation

Building Products of Canada Corp.

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IKO Industries Ltd.

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Western Louiseville Fibreboard Inc.

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9 Perlitic

Johns Manville Corporation

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10 Mineral Fibre Roof Insulation

Roxul, Inc.

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Soprema Inc.

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11 Lightweight Insulating Concrete

Siplast

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