Next find the center of the roof at the top and the eave then snap a vertical chalk line.
Roof throw line.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
Then a user needs to find a secure object that can be used to serve as a safe temporary anchor point.
Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof.
Contrary to popular belief an anchor point does not necessarily have to be situated above the work location.
A throwing line is used to get the rope over the sloped roof.
Swurfer throw weight 150 line kit for arborists tree climbing tree swing installation bright quality arborist equipment kit 3 6 out of 5 stars 42 16 08 16.
Roof anchor 420 lb weight capacity attaches to roof deck 20 1 2 in length 3 in width item 400l02 mfr.
Eaves pictured below are the board braces or joints that extend away from the upper wall to wherever a overhanging roof ends.
Repeat this on both sides of the roof.
For a professional finished look.
Use the chalk line to snap a straight line vertically every 6 inches.
Easy blending with less work.
And unlike silicone paint sticks to through the roof.
They form an upside down v with the point at the top of the addition roof.
In this example a tree is used as a temporary anchor point.
The v cut angle along the junction of two slopes of a roof.
By using a throwing line for work on sloping roofs a rope can be pulled over the roof.
Goes on clear and stays clear easily blending in with your roof.
Every 5 inches make a new mark until you get to the rop of the roof.
Will stick to almost any roofing surface metal plastic asphalt wood concrete and more.
This allows users to create an anchor point on the other side of the sloping roof.
Most pros use this line to begin shingling working left and right toward the rakes.
The felt keeps the roof deck dry before shingles go on protects against wind driven rain as shingles fail and increases fire resistance.
After the rope is anchored a weight is placed at the other end to keep the rope taut.
Generally wherever 2 sloped planes connect other than at a peak point a valley is formed.
Horizontal line at the top of the roof.