Slide the upper tab on the jack under the shingle so that nail hole in the jack is barely covered.
Roof jack for line set corrugated roof.
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When the jacks are properly nailed to.
If the roof jack is a side mount and close to the ridge of a corrugated roof slide the roof jack under the ridge and screw down on top of the corrugations to give more air flow and cooling.
Lift up the tab and nail the jack into place.
In using roof jacks for metal roofs.
I came across this steep roof and took this video about installing the roof jacks and the board before installing the roofing materials.
The jacks must be properly nailed or leaks in the roof could occur.
Lift up the tab of a shingle where you wish to install the jack.
The following section describes one possible method for securing a roof jack to a corrugated roof.
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With your square set on the main roof side of the hip rafter step off the true run of the first hip jack using the pitch of the main roof hip 8 15 5 8.
A surefire way to get straight lines is through using the roof jacks as a guide.
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When installing or repairing shingles on a steep roof you need the support of roofing jacks which are brackets that hold a length of two inch scaffolding.
For each successive jack rafter step off the common difference.
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Roof jacks are nailed to the roof directly over rafters for strength.
The roof jacks will help us gain a better foothold while we insert the new shingles.
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This is the centerline of the first jack.
Once the shingles are laid we need to insert a vertical line in order to measure the next rows.