There are a few general best practices you need to know.
Roof that goes up to connect to another roof.
There are many roof.
If you re adding to the gable end of the house the side wall that goes up to the roof s peak it s fairly easy to extend the existing roofline over the new space says curt schultz a realtor architect builder in pasadena calif.
Place the 2 by 4 inch piece of lumber along the center of the flashing.
Slide the right edge of the flashing under the highest roof pitch.
That s a simple low cost solution that can tie in well with the main house.
The same roof has a 4 12 or 1 3 pitch.
A measurement of roof area that equals 100 square feet an area 10 feet by 10 feet.
Position the flashing between the two roof pitches.
Step flashing is the most time consuming of all flashing jobs on the roof because you must complete it step by step as you shingle up the roof.
Slope a roof s slope is the number of inches it rises for every 12 inches of horizontal run a roof with a 4 in 12 slope rises 4 inches for every 12 inches of horizontal run.
After a taking some measurements and doing a bit of ciphering we established that the steepest pitch we could use on the porch roof was 4 in 12.
A lean to roof also called a shed roof slopes in one direction with rafters that rest against another structure at their high end and overhang support posts or an exterior wall at their low end.
Building an addition on a house requires connecting two roofs whether the new space is a wing of living areas or a carport.
Snap a chalk line between the two transition marks on the shingle roof.
Tape layers should overlap shingle style up the roof in the first few parts of this series we figured out where to snap that first line.
How to tie building roof systems into one another.
We wanted to make the porch roof as steep as possible while keeping the peak of the roof below the wall to roof intersection at the top of the shed roof.
If you aren t a skilled carpenter some studying can be concerned akin to how you can design an a frame roof or how to construct a wall.
The line extends 12 inches beyond the marks each way to establish the length of the transition flashing.