CSLB C-39 Roofing ContractorSafety and RepairHard
A roofing contractor is performing a reroof on a residential building. During the tear-off, the crew discovers that the existing fascia board is severely rotted and needs replacement. What is the correct sequence of steps for replacing a rotted fascia board and ensuring proper integration with the new roofing system?
- AReplace the fascia board, then install drip edge, then install roofing underlayment.
- BInstall new roofing shingles, then replace the fascia board, then install drip edge.
- CInstall new roofing underlayment, then replace the fascia board, then install drip edge.
- DReplace the fascia board, then install roofing underlayment, then install drip edge.
Show answer & explanationAnswer & explanation
Correct answer: A. Replace the fascia board, then install drip edge, then install roofing underlayment.
The fascia board is structural and forms the edge for the roof. It must be replaced first. The drip edge then goes over the fascia board and under the underlayment to direct water away from the fascia and into the gutter, protecting the entire system.
Why the other options are wrong
- B. Installing shingles before replacing fascia and drip edge is entirely out of sequence and would lead to immediate failure.
- C. Installing underlayment before fascia replacement is incorrect as the underlayment needs to overlap the drip edge, which sits on the fascia.
- D. Installing underlayment before drip edge is incorrect; the underlayment should overlap the drip edge flange.
Fascia, Drip Edge, Underlayment Sequence
The correct installation sequence at the eaves is: fascia board, then drip edge, then roofing underlayment.
- Fascia provides structural support for the eave.
- Drip edge protects the fascia and directs water.
- Underlayment overlaps the drip edge for continuous waterproofing.
Memory trick: Fascia first, then the drip edge takes its place, underlayment on top, for a watertight embrace.