Torch-Down Roofing in Pittsburgh
Modified bitumen torch-down systems for rowhouses, porches and low-slope roofs.
Torch-down roofing is a modified bitumen system: rolls of asphalt-based membrane are heat-welded to the roof and to each other, forming thick, fused seams. It's a common, durable choice for Pittsburgh rowhouses, porch roofs and other low-slope areas.
Because it involves an open flame, torch-down should only be installed by experienced crews who follow safe practices around edges, walls and penetrations.
Signs you may need torch-down roofing
- Cracked or alligatored surface on an older torch-down roof
- Seams or laps opening up
- Blisters in the membrane
- Leaks at parapet walls or chimney bases
Our process
- 01
Assess
We check existing layers, decking, drainage and flashing details.
- 02
Prep
Old material removed or prepared as appropriate, and the base layer installed.
- 03
Torch-apply
Membrane heat-welded with overlapping, fused seams.
- 04
Detail & inspect
Edges, walls and penetrations flashed and every seam checked.
Things to consider
- Torch-down is well-suited to roofs that get light foot traffic, like porch roofs and decks over living space.
- Some buildings are better suited to a non-torch system; we'll recommend the safest appropriate option.
Torch-Down Roofing FAQ
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