Roofing is often damaged by other trades after it is installed.
In this article
Sequencing
Equipment before final roofing when possible.
Penetrations
Planned and flashed by the roofer.
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Warranty
Manufacturer requirements.
Protection
Walkways and boards.
Inspections
Before closeout.
A closer look
Mechanical and electrical trades often cut penetrations after the roofer leaves. Without the roofer's involvement, leaks and warranty problems follow. Coordinating penetrations and protection keeps the roof warranted.
Where to start
Hold a roof coordination meeting with roofing, mechanical and electrical before roofing starts.
An example
A GC required all penetrations to be flashed by the roofer. The roof passed the manufacturer inspection without issues.
Common mistakes
Unplanned penetrations, no protection and missing warranty inspections.
What to track
Track penetrations, leak reports and warranty inspection results.
Questions to ask
Which trades need roof access and when? Who flashes penetrations? What does the manufacturer require for the warranty? How will the roof be protected during rooftop work?
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Frequently asked questions
Why is roofing coordination important?
Because rooftop equipment, penetrations and foot traffic can damage the roof and affect the manufacturer's warranty if not planned.