Copper Drain on Flat Roof

Copper Drain on Flat Roof

I want to show you a quick easy method for installing
a drain. First thing you do is find your low spot then turn the drain upside down. Use the edge of the drain as your cutting template. For this drain, we had access from down below
so it was real easy to hook up the pipe. When you don’t have access from down below,
you’ve got to feed the pipe in between the joists. If you have to run a pipe perpendicular to the joists,
be sure that you cut the center of the joists. Don’t cut the hole towards the top or the bottom
or you’ll weaken the joists. We made this model to show you how easy it is to slip the drain in place and hook up the pipe. Position both the drain and the pipe then put some glue in the fitting and just slide it in place. It goes in real easy, piece of cake. If you have to run your pipe out through a stucco wall, be sure that you’re using a bit made for stucco. Once the drain is in place, be sure you fasten it down with plenty of screws. Space them about three to five inches each and be sure that you use self-tapping screws. You can see the drill point on this one. This one’s black, its corrosion-resistant. That’s real important. And notice that we’re using
flat head screws. Wire brush a six-inch path all the way around the drain and then blow the dust away. You can use webbing around the perimeter of the drain three core style but it’s not necessary. Then fill everything in with a thin layer of plastic
roof cement. Then lay down a 36-inch square piece of roofers foil and round the edges just for looks. Then take your finger and press down along the edges squeezing out a nice even bead of plastic roof cement. Our favorite drains are made by Thunderbird products. Check out their website, I think you’re going to
like their stuff. With the strainer in place, you’ll notice that you’ve
only got about a quarter inch clearance between the foil and the edge of the strainer. Not enough. It’ll plug up with leaves and cigarette
butts or anything. So when we install the strainer, we like to cut out a couple of sections on both sides of it so that it doesn’t plug up. And there’s the final installation, laying flatter than a pancake, will easily last 20-30 years without any problems whatsoever. Check out more roof tricks and the
How to Bid It Right Program at

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