PRIMARY ROOFING SYSTEMS

Introduction: Asphalt-based roofing membrane modified with rubber for flexibility.
Types: APP vs. SBS (SBS is rubberized); cap sheet vs. base sheet; granular or smooth finish.
Elements: Base sheet, interply layers, cap sheet; adhesives or torch.
Application: Commercial or multifamily buildings, retrofit jobs; good in colder climates.
Methods: Torch-applied, cold adhesive, or self-adhered; multi-ply systems.

Introduction: Single-ply membrane roofing known for energy efficiency and heat-weldable seams.
Types: Standard white TPO; other colors available for aesthetic or solar reflectivity goals.
Elements: TPO membrane, insulation board (polyiso, EPS, XPS), cover board, fasteners or adhesive.
Application: Flat/low-slope commercial buildings; sustainable and cost-effective.
Methods: Mechanically fastened, fully adhered, or ballasted; seams heat-welded for water resistance.
Summary: Durable and reflective, suitable for large flat roofs, with good chemical and UV resistance.

Introduction: Asphalt roofing membrane modified with plastic (APP) for enhanced UV and heat resistance; applied using an open-flame torch.
Types: Granulated or smooth-surfaced cap sheets; single-ply or multi-ply assemblies.
Elements: Primer (optional), base sheet, APP torch-applied cap sheet, flashing, termination metals.
Application: Commercial buildings, warehouses, and flat roofs in warm climates; also used in re-roofing.
Methods: Torch-applied using propane flame to melt underside of membrane to substrate or base sheet; requires experienced installers.

Introduction: Cold liquid-applied resin system forming a fully bonded, seamless membrane.
Types: PMMA base and top coats; fleece-reinforced systems.
Elements: Primer, base coat, reinforcing fleece, top coat, detailing components.
Application: Ideal for complex roofs, irregular shapes, and retrofit of aging roofs.
Methods: Applied with rollers or squeegees; rapid cure allows fast recoat.
Summary: High performance, seamless, and fast-curing — excellent for detailed and waterproof applications.

Metal Roofs / Siding

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