One important and perhaps not so obvious fact is that a flat roof is not actually flat.
How to install rafters on a flat roof.
Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.
If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters.
Attach a board uncut to the settle rafters on which you need to lay a vapor barrier material film construction.
It helps direct water away from the.
Find out how to attach the rafters to your carport roof frame.
At the peak the rafters are nailed to a ridge board and at.
This material must be laid across the rafters and overlap.
The flashing should overlap the edge of the roof by one inch to help direct.
That would be.
Once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing.
The roof rafters provide integral structural support to the roof.
Joints are sealed with vapor barrier.
A flat roof truss is also known simply as a flat truss and is not completely flat but rather slightly sloped in order to allow water to run off of the roof.
Stack insulation boards on the film top.
Bend the flashing into a v shape to fit over the top roof ridge and the corners where the panels meet.
This video from bunnings warehouse will show you how to mark out where the rafters should go a.
The 8 step process for diy installation.
The insulation thickness of 8 inches is laid as a flat carpet.