Can I install siding, soffit, and fascia before roof shingles?
Installing siding and trim before shingles leaves the critical roof-to-wall flashing exposed and vulnerable to being redone. Doing the roof first ensures proper water-shedding integration where the materials meet.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Waiting for the contractor to returnDid this help you?
- 2Installing weather shield underlayment as a temporary protectionDid this help you?
- 3Installing a 1x3 inch board onto the vertical part of the flashing, pinning it to the house, and caulking across the top of the trim board.Did this help you?
- 4Removing siding to get the flashing in correctly.Did this help you?
- 5installing a second layer of shingles instead of a full tear-offDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“I need to finish one relatively small section over the garage with a valley and its been raining for 2 days. It finally stopped. Can/should I shingle over wet shingles??”source ↗
“Just shingled my new shed and need to install flashing at the house. Suggestions on what type flashing to use?”source ↗
“The lowest full run of shakes is pretty far up from the shingles, so it's not looking very easy to slide flashing underneath.”source ↗
“But I am assuming a 90 degree flashing will not lay down on the shingles well and that trying to bend it down will simply make it look junky.”source ↗
Where this came up
People with this problem also raised
- 11How to fix cement fiber siding touching roof shingles
- 7How to install drip edge on an existing roof
- 2How to put a metal roof on a cordwood building
- 5Is a gap in roof sheathing at the ridge okay before shingling?
- 4How to shingle around roof bends and height differences?
- 2How to fix loose exterior soffit panels that keep falling out