STANDARDS OF PRACTICE
The International Standards of Practice for inspecting the roof system is located at www.nachi.org/sop.
MASTERING ROOF INSPECTIONS
To learn about inspecting metal roofs, please visit Mastering Roof Inspections.
Observation
Over driven fastener. This may cay cause pooling around the fastener and corrosion may occur.
Observation
Holes not repaired or sealed. Repairs made and will need to be maintained.
Observation
Under driven fasteners, fasteners missing gaskets another source of leaks and corrosion.
Observation
Scratches and scuffs on the finish will decrease lifespan and corrode faster. Debris on the surface and dimples will let water set and increase corrosion potential.
DRIP EDGE
According to 2015 IRC R905.2, a drip edge must be installed on the roof.
Observation
Kick out flashing missing. Drip edge on the rake not fully secured.
Observation
The minimum slope for lapped, non-soldered seam metal roofs without applied lap sealant shall be three units vertical in 12 units horizontal (25-percent slope).
