How to Install & Build a Porch Roof
A porch roof is essentially composed of layers of specialized materials that are designed to last for many years of natural exposure. Above the structural trusses or rafters, your roof will be covered in 3/8” or 1/2” tongue and groove plywood. The plywood for the roof comes in 4’x8’ sheets and will hold the roof members together much like decking secures the deck frame. The next layer will be a minimum #15 roofing felt, which can be stapled in place over the plywood to create a water tight barrier for the shingles to cover. Install drip edge flashing to the lower edge of the roof and step flashing at the house wall.
| 1.Siding | 2.Kickout Flashing | 3.Step Flashing |
| 4.House Sheathing | 5.Gutter | 6.Roof Sheathing |
| 7.Drip Edge Cap | 8.Asphalt Shingles | 9.Roof Felt |
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Explore Articles by Topic
Footings
Information related to installing frost footings for decks
Framing
Learn structural framing methods
Decking
Learn about wood and composite decking materials
Stairs
An in-depth look at the complex issue of how to build stairs
Railings
How to install guardrails and handrails to meet IRC code
Features
An overview on water drainage, benches, planters and lights
Design
The basics of deck design
Planning
Learn about permits and working with contractors
Porches & Patios
Build a covered deck to enjoy all seasons
Ledger
Proper attachment techniques
Care
Maintain your deck to maintain your investment
Materials
An overview on water drainage, benches, planters and lights