Project Type New Build – Flat Roofing Warm Roof Metal, Plywood, Concrete Deck Traditional Torch-On Derbigum Built Up Metal Deck Single Layer, Cold Adhesive Derbigum Single Layer Inverted Roof Concrete Deck Built Up Derbigum Built Up Refurbishment – Flat Roofing New Waterproofing Existing Roofing Single Layer Overlay Derbigum Built UpDerbigum Single Layer Existing Roofing Two Layer Overlay Derbigum Built UpDerbigum New Waterproofing & Insulation Existing Roofing New Insulation & Waterproofing Derbigum Built UpDerbigum Single Layer Existing Roofing New Insulation & Waterproofing – Drainage Falls Derbigum Built UpDerbigum Single Layer Total Renewal Existing Deck Insulation & Waterproofing Derbigum Built UpDerbigum Single Layer New Structural Deck Failed Deck & Roofing System Derbigum Built UpDerbigum Single Layer New Build – Structural Waterproofing Type Concrete Deck Protected Roof (Inverted – Ballast or Paving) Hydrotech Concrete Deck Plaza Decks or Podiums Hydrotech Concrete Deck Substructures & Basements Hydrotech Concrete Deck Green Roofs Hydrotech Concrete Deck Access Roadways Hydrotech Green Roofs Type Extensive/Biodiverse Low Pitched Roofs ZinCo ExtensiveZinCo Biodiverse Extensive/Biodiverse Zero Falls Roofs ZinCo ExtensiveZinCo Biodiverse Extensive/Biodiverse 8-25º Sloped Roofs ZinCo ExtensiveZinCo Biodiverse Extensive/Biodiverse Standing Seam Roofing ZinCo ExtensiveZinCo Biodiverse Semi-Intensive Low Pitched Flat Roofs ZinCo Semi-Intensive Intensive Low Pitched & Zero Falls Roofs ZinCo Intensive Intensive Zero Falls Roofs, Resevoir Irrigation ZinCo Intensive Intensive Hard Landscape or Podium ZinCo Intensive