Steep-slope systems
Tile, metal, and asphalt shingles each bring different weight, profile, attachment, repair, appearance, and budget considerations.
- Concrete and clay tile
- Standing-seam and exposed-fastener metal
- Architectural asphalt shingles
Roof systems
Roof systems selected for the building, slope, and exposure.
There is no universally best roof material. The right system depends on slope, structure, drainage, exposure, architecture, use, approved assemblies, maintenance expectations, and lifecycle priorities.
Low-slope systems
Commercial and low-slope roofs rely on continuous waterproofing assemblies and carefully detailed drainage, seams, edges, and penetrations.
- TPO single-ply membrane
- Modified bitumen
- Coating and restoration options where suitable
- Low-slope metal and hybrid conditions
Frequently asked questions
Questions about roof systems.
These answers provide a practical starting point. The building, roof assembly, permit jurisdiction, and observed conditions determine the final recommendation.
Which roof type lasts the longest?
Service life depends on the complete assembly, installation, exposure, maintenance, repairs, drainage, and product—not the material category alone.
Can every home use tile or metal?
No. Roof slope, structure, product approvals, attachment design, geometry, community requirements, and budget must support the selected system.
Why are low-slope roofs different?
They drain more slowly and rely on continuous waterproofing membranes, sealed seams, flashings, drains, scuppers, and edge details rather than overlapping water-shedding units alone.