Proper Roof Jack Installation

Determine placement determine the best place to fasten your first roof jack.

Proper roof jack installation.

I came across this steep roof and took this video about installing the roof jacks and the board before installing the roofing materials. 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. Ideally locate a rafter below the sheathing. How to install roof jacks step 1.

Middle jacks will help when extra material is loaded on the roof or when workers need to walk from spot to spot. Ensure the chimney s base flashing is in proper order secured to the roof as the manufacturer or mason recommends beneath the shingles. Select the appropriate roof jack from table 2. Most asphalt shingles are 3 feet 91 4 centimeters in length.

All nails need to be carefully driven fully into a roof rafter to ensure a safe installation. For many people out. Re install any jacks that are loose or can shift. Cut roof shingles to fit around the roof jack and insert them under the existing shingles.

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. Measure the length of a shingle as it lies across the roof. 2 if slant deck flashing is used. Do not stack material more than one layer high.

Make sure to examine each driven nail and test each roof jack before placing any planking on top. It is usually placed on the fourth. If you were not provided with base flashing you can install step flashing up the side of the chimney. Roof jacks provide a stable surface to work increasing safety and making it easier to apply roofing.

Slide a new roof jack sized to fit your vent pipe over the pipe. 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. From the roof he will cut a hole the same size as the diameter of the vent. In this video i show you how to install a lead flashing on a electrical pipe something that every roofer should know.

Hope you like it and subscribe. Placing the first roof. Be careful when placing roofing materials on jacks so they are secure. 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.

Add dimensions a and x from table 1 and fig. Prepping installation carefully place a ladder by the side of the roof and make sure that it is stable and.