The reason being that the decking, the wood, that's down underneath here has begun to rot and I'm afraid the next time I come up to patch I might step right through it. My friend and roofing expert Fred Bolanz is here to help me out.
Our first step is sweeping this top layer of gravel into piles and moving it off the roof. Then, the old felt paper underneath the gravel has got to go too. Fortunately, not all the surprises were bad. We found that most of the wood in under here, the decking, was still good. Now we did have some places that are rotted. We're gonna have to cut those out and replace them with 3/4 inch plywood. Now the next step is to put this #15 felt down. Okay, next we're gonna put these little tin caps down and what they do is the nail head would be a very small holding area, this gives you a much broader holding area, not as likely to rip.
After we get all of our felt paper nailed down, we're ready to install some metal flashing around the drip edge of the roof. That way, rainwater won't be able to blow in under our new roofing.