Where low-slope systems appear
They may be used on additions, porches, garages and modern roof forms. The right system depends on slope, drainage, substrate and adjoining walls.

ROOFING MATERIALS
Low-slope sections rely on continuous water-shedding or waterproofing assemblies rather than the overlapping approach used on steep-slope shingles.
They may be used on additions, porches, garages and modern roof forms. The right system depends on slope, drainage, substrate and adjoining walls.
Drains, scuppers, edges, penetrations and tie-ins need careful installation because water moves away more slowly than on a steep roof.
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