Building a Wooden Patio Overhang
Materials and Tools:
screw gun and screws
flat saw bit
palm nailer and nails
framing nailer and nails
protective eye goggles and gloves
4x4 wood posts
U26 joist hangers
lonseal vinyl flooring
1. Carefully remove existing patio cover.
2. Decide the design of your new structure. Measure the footprint of where the posts will sit and mark on the foundation. Plan and measure layout.
3. Install post anchors into the ground and set up the 4x4 posts with a palm nailer, making sure they are level before attaching.
4. Cut the posts to the desired height when in place. Install a 4x6 header on top of posts. Use carriage bolts to attach the header to the posts.
5. Install a 2x6’ ledger board on top of existing fascia board with carriage bolts for added strength for overhang.
6. Secure the joist hangers for the 2x6’ rafters to the fascia board on the house using the palm nailer. Lay out for 24-inch rafter spacing. Only secure one side of hanger to allow for the rafters to be adjusted and tightened when they are ready to be installed.
7. Lift the 2x6’ rafters into place from the hanging saddle to the anchored post to determine the proper placement for the notch for the header. Mark out for header notches at anchored posts.
8.Lower each rafter and cut out two inch notches at the header end – away from house – to maximize header height and maintaining a 1/4-inch to one-foot roof slope.
9. Install header on top of anchored posts – away from house – using a framing nailer, providing 2x6’ blocking.
10. Check for plumb and square before installing the rafters. Begin installing your 2x6’ rafters, fitting the pre-cut notches over the header and setting the house end into the joist hangers and securing with palm nailer. It’s okay to leave the rafter tails (away from the house) they can be trimmed to a uniform length after all the rafters are in place.
11. Once all rafters are in and secure, make sure they have the proper slope for the roof. Use a string line to mark a uniform line and cut in place.
12. Install T1-11 plywood upside down so that the paneled side creates the ceiling and the smooth side is the roof. Install 2x2 metal roof edge.
13. Apply vinyl roof covering with manufacturer recommended adhesive and use a roller to eliminate air bubbles.
14. Apply two coats of stain to the underside of the roofing with an airless sprayer
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