Proper Roof Jack Installation

Select the appropriate roof jack from table 2.

Proper roof jack installation.

From the roof he will cut a hole the same size as the diameter of the vent. You can usually feel sheathing nails which are driven into rafters through the underlayment attach a jack by driving two 16d nails never roofing nails into a rafter. Measure the length of a shingle as it lies across the roof. From inside the attic your roofing professional will drive a nail about one third of the way down from the ridge between two rafters to mark the desired spot for installation.

Most asphalt shingles are 3 feet 91 4 centimeters in length. I came across this steep roof and took this video about installing the roof jacks and the board before installing the roofing materials. Determine the depth of the ceiling cavity from the center of the roof opening to the top of the furnace see dimension a in figure 1. Be careful when placing roofing materials on jacks so they are secure.

In this video i show you how to install a lead flashing on a electrical pipe something that every roofer should know. If you were not provided with base flashing you can install step flashing up the side of the chimney. Determine placement determine the best place to fasten your first roof jack. Re install any jacks that are loose or can shift.

Middle jacks will help when extra material is loaded on the roof or when workers need to walk from spot to spot. How to install roof jacks step 1. Make sure to examine each driven nail and test each roof jack before placing any planking on top. If your roof s width is not an even multiple of the shingle s length you will have a partial piece on one end of each row.

For many people out. This will help determine how the shingles will lay on the roof width. 2 if slant deck flashing is used. Cut roof shingles to fit around the roof jack and insert them under the existing shingles.

Roof jacks provide a stable surface to work increasing safety and making it easier to apply roofing. Placing the first roof. Add dimensions a and x from table 1 and fig. Nail the new shingles down with roofing nails so the nails are covered by the shingle above.

All nails need to be carefully driven fully into a roof rafter to ensure a safe installation. It is usually placed on the fourth. Hope you like it and subscribe. Ideally locate a rafter below the sheathing.

Prepping installation carefully place a ladder by the side of the roof and make sure that it is stable and. Slide a new roof jack sized to fit your vent pipe over the pipe.