You have to do it thoroughly so that the rafters sit flush on it.
How to add a roof on a deck.
Always check the local codes.
Installing a porch roof over an existing deck is usually not recommended unless the deck was originally designed to support a future porch.
Before you begin make sure you re matching the house roof pitch angle and overhang for your roof.
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Most deck roofs require separate footings from the deck to support the weight of the roof throughout the seasons.
Our experts can take care of all this and more.
Porch decks also require larger footings than deck footings.
Discuss the following issues with your professional handyman during the deck roof design process.
To solve this problem you can either replace your original deck footings to support your new roof or build your roof separate from your deck to ensure a proper foundation.
While a typical deck is designed to support 55 pounds per square foot psf a roof requires 80 psf of support.
Check local building code to see if you can attach a patio roof directly to your deck.
Building on an existing deck.
After that to make it flush with the roof of the existing house cut the two outer rafters.
Installing a roof over an existing deck isn t recommended unless your deck was originally designed to support the roof.
For deck roof posts dig holes for the roof posts and pour cement to keep them secure.
Make a cutting on one of the sides of the horizontal roof beam on an angle.
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These are used to attach the support posts to the frame of the.
If you have an existing deck it s possible to add a roof to it by installing additional supports.
Typical decks are designed to support 55 psf lbs per square foot.
Install post base connectors.
Attach the horizontal beam by using a nail gun.
Blow out the dust fill the hole with epoxy and insert the rod to the required depth.
Porch decks require 25 additional psf for roof loads for a total of 80 psf.