Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.
How to trim roof rafters for rain gutters.
Mark out 3 ft 0 91 m sections along your fascia board with a pencil.
Make vertical cuts into the fascia board between your roof rafters.
Horizontal beams fixed under the rafters.
Cut the board into 3 ft 0 91 m sections with a reciprocating saw.
Boards under the high point and just above the roof framing.
The roof rafters provide integral structural support to the roof.
The ridge cut also called the plumb cut at the top of the rafter the birdsmouth cut.
Overlapping tiles used as roof covering.
At the ends of the gutters are 4 inch diameter corrugated aluminum downspouts 1 75 per linear foot which were ordered in white to match the house trim.
I need to put continuos gutters on a 12 4.
Rain gutters should be attached to the fascia and run the entire length of the roof ending with a downspout.
When you cut the rafters you ll need to make 3 separate cuts.
A horizontal piece of timber or metal installed on top of the rafters.
Horizontal beams that sit on top of the rafters.
Diagonal piece of beam supporting the roof.
Square cut rafter tails 2x6 facia no soffit.
Two thoughts i am thinking of making a triangle trim to nail onto the entire facia about 1 2 up from the bottom to make the gutter plumb or just nailing some square stock where the bottom of the gutter will land.
If the gutter run measures longer than 40 feet 12 2 m it should be positioned to pitch down from the middle aimed toward a downspout at each end.
To ensure that gutters drain properly make certain they slope inch for every 10 feet toward a downspout.