The seat rests on top of the wall that you re attaching the particular rafter to while the shoulder cut parallels the wall and allows several inches of each rafter to overhang the roof.
How to do a roof chop.
Finally it can take up to a year to finish the bodywork on a bad roof chop.
There are two basic methods of pitched roof construction.
See all 21 photos.
Any fool can do this.
A quick glimpse of the chop taking shape.
After the cuts are done the roof will be real floppy.
Chopping a top what.
This is where the quality of planning for the chop shows up.
Cut the last ridge shingle to the length you need but be sure that no part of the roof is exposed.
I added them after we started cutting it but it worked ok.
I must note that before you make this cut draw several vertical lines that you can use for reference at a later time.
Cut the flashing back to the peak along each crease.
Pitched roof construction.
Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.
Earlier model cars and pickup trucks were boxier shaped than the ones produced in the 50s and 60s and not very aerodynamic.
The next cut will be the back of the roof.
Since the angle will be different now cut slits along the edge of deck lid opening.
Start by installing self stick underlayment on the decking.
Read this before you chop.
Then fold the flashing over the peak and cover the cut ends with self stick underlayment.
Seriously if the doors don t fit right before you cut the roof off a car i can assure you that they won t fit after you weld it back on and the results could be permanent.
Roof valleys channel a lot of water so they need extra protection.
The roof rafters provide integral structural support to the roof.
A birdsmouth cut has 2 parts.
We used some clamps to hold it while we cut the a pillars.
To lower that profile dry lakes racers and hot rod builders mimicking the look of racecars cut the roof off of the vehicle and reattached it after removing part of the sheet metal and posts through the center of the window line.
A horizontal cut called the seat cut and a vertical cut called a shoulder cut.
This will allow you to push down the lip to meet the correct angle.
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.
A cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters ridge boards joists and purlins etc the exact details being determined by the size of roof size of timbers etc.
Do the same with the next shingle continuing this step until you get to the far edge of the ridge.
It takes a month to finish weld the chop.
It takes one weekend to chop the top and tack weld it back on.
This process is much easier with two people.
Each shingle should be held by four nails.
It took over a year to finish the roof chop on my car.
