Roofing Contractor in Rohnert Park, CA

Rea Roofing Inc. re-roofs and repairs across Rohnert Park, and the work is mostly composition shingle on single-story homes with shallow to moderate pitches — plus the flat-roofed additions and carport structures that came with a lot of the original construction.

The shallow pitches common on the early sections are the thing to watch. A low-slope roof gives water less help getting off, so underlayment, valley detail and the metal at the eaves do proportionally more of the work. It also means debris sits rather than sliding off, and a shallow valley packed with leaves backs water up under the shingles far more readily than a steep one would.

Many original Rohnert Park homes came with, or later acquired, a genuinely flat section — a carport roof, a patio cover, a rear addition. These are almost always the leaking part of the house. Where the flat area was roofed with an old built-up or rolled system and patched repeatedly, the right answer is a proper low-slope membrane with real slope to an outlet, not another layer.

Ventilation is the other systematic issue. A great many homes here were built with minimal attic intake and exhaust, and where that has never been corrected the roof above it cooks in summer and sweats in winter. Correcting it during a re-roof is inexpensive and is one of the few things that genuinely extends the life of the new roof.