Flat & Low-Slope · Modified bitumen

Porch flat, detailed for standing water

The kind of low-slope section we get called about after somebody shingled it — a modified-bitumen system replacing an assembly that was below its rated slope.

The same porch deck with asphalt shingles laid below their rated slope, water standing on them. — Before

A low-slope porch roof finished in modified bitumen and terminated at the wall. — After

Modified bitumen membrane being bedded and terminated against a brick wall.

The transition from low-slope to steep-slope.

What to look at

Shingles have a manufacturer-specified minimum slope and below it they are outside their own instructions. The transition where this section meets the steep-slope roof is where these fail, so that detail is the one worth looking at rather than the middle of the flat.

Service: Flat & Low-Slope
System: Modified bitumen
Service area: KennesawCobb County

A long run of finished architectural shingle roofline against a clearing storm sky.

Get on the roof and know for sure.

Forty-five minutes, dated photographs, a written answer, and no obligation of any kind.

Book a free inspection (770) 555-0126