How To Cut Holes Around Pipes For Rubber Roof

Step 2 cut through the plywood and roofing material with your reciprocating saw.

How to cut holes around pipes for rubber roof.

Locate the source of the leak on the roof then use a utility knife to slice through the rubber roof around the suspected trouble spot. That gives you a perfect oval about the size of the inside of the pipe or chimney. As you can see in the photo we angled it up using two 45 degree elbows so that our roof hole would be a little higher up the slope of the roof. Check the final position off the sheet.

With the pipe in a vertical position trace around the pipe using a pencil. Pull off the old rubber roofing from the cut area. Continue around the mark until the complete cut has been made. We used a small hand saw to remove the old coupling then slid a new pipe extension over the older pipe.

And then the rest of the roof can be finished up in no time. The book mentioned in this video is no longer in print but the essential guide to the steel squ. For most roofs metal roofing will need to be installed around a vent pipe. Measure the smallest distance across the oval a line parallel to the ridge of the roof.

Follow along the line with tin snips and carefully cut out the hole to fit over top of the pipe. Take a pencil and trace the light on the underside of the roof deck. Make a straight cut from the pipe to the nearest edge of the field sheet. Fold the membrane back and begin the bonding procedure.

Be sure to maintain the proper alignment of the sheet with the roof edge wall and seams. Solid wood cut to shape cut a hole in a circle or square of regular 1x lumber with a hole saw exactly the size of the pipe then cut it in half and attach each side around the pipe also works rodents can chew though wood also but it takes them quite a while and if so you can hear them in time to make a metal patch before they can get in. Cut a hole to match the diameter of the pipe and roll the field sheet around the pipe.