How To Cut Vent In Roof

To begin the ridge vent installation they measure down 3 inches from the top of the ridge and snap a line to cut the opening for the ridge vent.

How to cut vent in roof. Make a template using cardboard that s the width of your overhang with a hole the size of the vent cut in it. Go into your attic. Follow the outline you marked out. Be careful not to damage any foundation beams supports or other essential columns.

Remove any drywall from the inside and then cut through to the outside of the roof. Place the air vent into the hole and then screw it tightly into position. The hole needs to be taller than your pipe diameter as the pipe isn t passing through the roof at a perpendicular angle. How to cut a hole in a roof for a range vent 1.

Use a tall ladder to reach a taller overhang. Measure the body of the vent. Using the tape measure determine the size of the cut into the roof that will be necessary to insert the vent into the space. Record those measurements on a notepad.

Now that the hole was cut my friend ran back down the ladder and up into the attic so that we could connect the vent pipe through the roof. Set the compass to draw a circle about 1 8 inch larger than the pipe s diameter. How to install a vent pipe through a roof step 1. Remember to allow for the lip on the vent mechanism that will fit over the opening and rest on the surface of the roof.

Have a partner hold the ladder steady so you can work safely. With the pipe in a vertical position. The size of the rectangle will depend on the size of the vents but. Measure the pipe s outer diameter.

Using a circular saw with a carbide tip blade one of the roofers plunges the saw into the ridge at the ends and then follows the chalk line. Once the roof has its shingles removed you can begin cutting. Step 2 fitting the air vent. Position the vent pipe up to the bottom of the roof.