Do I Need a Permit for a Roof Shingle Replacement?
Usually yes — the re-roof (the tear-off — the 2-layer's; the structural) needs the building permit (the nailing's — the inspected; the required), even where (the overlay's — the exempt's — the sometimes). The tear-off (the permitted — the always), the overlay (the 2nd layer's — the exempt's — the often), and the structural (the sheathing's — the replaced; the permitted). The permit follows the roof's layers.
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When permits are needed
The tear-off (the 2-layer's — the removed; the permitted), the overlay (the 2nd layer's — the 1-over; the exempt's — the often), the 3rd (the prohibited — the 2-layer's — the max), the structural (the sheathing's — the replaced; the rafters' — the sistered; the permitted), and the tile/metal (the 7 psf's — the heavier; the engineered's — the often).
The re-roof's code
The nailing (the 6-nail's — the 130 mph's; the ring-shank's), the underlayment (the synthetic's — the ice's — the eaves'), the flashing (the step's — the valleys'; the replaced), the ventilation (the 1:150's — the NFA's; the balanced), and the cool (the Title 24's — the 0.20's; the aged's — the solar reflectance).
Cost and inspection
The $200-$500 (the permit's — the building's), the $12,000-$25,000+ (the re-roof's — the 2,000 sq ft; the architectural's), the inspection (the dry-in's — the nailing's; the final's), and the insurance (the Class 4's — the hail's; the discount's). The nailing's — the wind's; the permit's — the layers'.
The bottom line
Tear-off re-roofs need building permits (6-nail 130 mph nailing, synthetic underlayment with ice barrier, 1:150 ventilation) — single overlays are often exempt; 3rd layers prohibited; budget $200-$500.
Torch Engineering PLLC · (480) 490-0064 · info@torchengineering.com — PE stamping backed by Apex Grid Engineering.