How to install drip edge flashing

Situated along the edge of the roof is the drip edge flashing. The drip edge flashing stops water from being blown or seeping under the roof tiles thus preventing leaks and costly repairs to your roof.. This type of flashing is available in 10-foot sections and can be purchased in several different types. This edging helps to prevent water from blowing under your shingles. This is also a lip along the edge that makes water drip down and out and away from your house, instead of directly down the side of the wall or fascia. This helps prevent water damage all the way from the roof to the foundation. Your local roofer in Austin, TX can answer any questions you have about the drip edge flashing and its importance to your roof’s lifespan.

To install your own drip edge flashing, you will need to gather a few items. These things are suggested:

  • ladder

  • metal drip edge flashing

  • tape measure

  • carpenter’s pencil

  • snips

  • galvanized roofing nails

  • hammer

The first step is to prepare and measure what you are going to be doing. Before you begin, prepare your roof by removing all the dirt and debris. Then take measurements of the all the outer edges of your roof to determine how much drip edge you will need.

The second step is to cut the lengths using metal snips. Cut the lengths to the measurements you obtained. Remember to double check your measurements before you cut. It’s always best to measure twice and cut once. For the first piece, set the strip against the corner of the fascia where the slopped edge meets the horizontal edge. Mark the angle of the slope on the strip and cut it to match so it will be flush when installed.

The next step is to start the drip edge. It is best to do this on a warm day so the shingles can be peeled back easier and so as to not damage the shingles. Start the installation at the lower edge of the roof and work your way up towards the peak. Lift the shingles and slide the top flange of the drip edge underneath. Tack the edge in place with a roofing nail every foot or so. Drive the mail through the drip edge into the roof surface and not through the fascia. Put the shingles back into place as you go along.

The last step is to overlap the joints. When you reach the end of a strip start the next length with a lap joint. To create the lap joint, overlap the drip edge ends with the upper edge over the lower edge. This is so that the water will pass over the joint and not under it. Continue this process until you have laid the drip edge metal strip on all the edges of the roof on all sides and the front and back.
Your local roofer in Austin, TX will be happy to answer any questions that could arise as well as estimate and install the drip edge for you.

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