You have to do it thoroughly so that the rafters sit flush on it.
How to extend roof eaves.
With roofing you again have a couple of choices.
While roof overhang depth can differ depending on the style of the home standard overhangs extend outward about 24 inches.
Attach the horizontal beam by using a nail gun.
Some metal roofs have wood framed eaves that extend several inches or a foot beyond the house or shed wall to support metal roofing.
The cost of extending my 30 foot long roof overhang 14 inches was 340 or 11 50 per running foot for materials.
This gets snow and ice drip line farther away from the building walls without the danger of the metal roofing bending under the weight.
Of the existing material is good.
A good estimate for a contractor to do this same roof overhang extension would range from 50 to 85 per running foot.
If you want to extend the rafters farther to cover a walkway or a porch.
This video will.
First nail the subfascia and fascia to the rafter tails next match the thickness of the existing roof sheathing as best as you can within 1 8 in.
How to extend gable end roof overhang for the arrangement of the gable end overhang for the standard roof you lengthen the ridge beam beyond the facade for previously verified length using cut rafters.
With the rafter extensions installed you can turn to trimming sheathing and roofing.
After that to make it flush with the roof of the existing house cut the two outer rafters.