Roof Cutting Holes

Create an in place family roof at choosing void extrusion.

Roof cutting holes.

A bit of careful planning can take some of the fear out of this task. It is better and safer to cut one hole and enlarge it then cut several smaller ones. Calculate the number of panels needed for the roof. Cutting oval holes in a sloped roof for round pipes when plumbing pipes and chimneys have to go through sloped roofs they are always cut fairly large just to make sure that the pipe will pass through.

The problem is that a 3 inch round pipe needs an oval hole in a sloped roof. Marking the metal for cutting 1. Avoid cutting the vent hole between your primary and secondary exits off the roof. Find a stable surface like a workbench you can use.

Lay the roofing sheets on a flat surface with the underside up. Determine the length of the void ideally in 3d view at wireframe mode extend this in order to. If you haven t already determined how big the panel needs to be. Once you have a hole cut through the ceiling and.

For a roof vent this means cutting a hole in an otherwise watertight roof. Cutting through the tar material and sheathing will typically require a depth of 1 to 1 1 4 inches. Measure along the. Ideally in a section view draw the contourline of the void using the pick line option on the base of the inside edge.

Putting your vent into the middle of the roof requires that you remove any tiles or slate that may be damaged when you make the hole. When cutting your ventilation. Remove any drywall from the inside and then cut through to the outside of the roof. 3 hold the saw s blade 1 inch above the roof remove the blade guard and depress the trigger.