COMMERCIAL ROOF MAINTENANCE & INSPECTION
Regular roof inspections, maintenance, and cleaning can dramatically lower your overall facility costs, emergency requirements, and can prolong the life of your commercial roof. Dilmar Group recommends inspecting your roof at least twice a year, even more often in areas subjected to high winds, tornadoes, hail, and hurricanes.
ROOF INSPECTION CHECKLIST
Here’s what you should be looking for when you’re up on the roof, in the attic, or on the ground performing an inspection.
- Visible damage
- Debris and dirt
- Color fade or chalking
- Chimneys, vents, skylights, fascia, drip edges, and decking
- Interior roofing components, such as rafters and roof trusses, should be inspected for signs of mold, mildew and rot
- Expansion joints should be checked for excessive movement
- Interior walls should be inspected for signs of water damage
- Ceiling should be inspected for signs of moisture
- Exterior walls should be inspected for signs of moisture
- Roof edges should be checked for deterioration
- Discoloration at lap joints
- Substrate firmness should be evaluated
- Penetrations should be filled and patched as required
- Gutters and drainage systems should be cleared
- Roof-mounted HVAC systems should be checked
- Surface should be inspected for deposits, ponding, growths, vandalism, and wear and tear
Flat Commercial Roof Inspection
Flat roofs are vulnerable to degradation due to weathering and standing water. Inspect your roof for granular loss, stretching, ponding, holes, punctures, or blisters. Membrane roofs should be carefully inspected overall to determine their condition.
Sloped Commercial Roof Inspection
Typically sloped roofs are made of asphalt shingles, tiles, slate, or metal. Inspect the shingles to ensure they are in good shape and free of granular loss, curling, or cupping. If your roofing material is losing grain or bending, it may be near the end of it’s functional life and will require replacement.
Metal Commercial Roof Inspection
Inspect metal roofs for corrosion, oil canning, popped screw heads, loose, bent or damaged panels. Seams should be checked to ensure that water can’t enter and exposed fasteners should be individually checked to sure proper seals.