A roof re cover shall not be permitted where any of the following conditions occur.
How to re roof in sections.
Nail down loose roof sheathing to rafters.
Where the existing roof or roof covering is water soaked or has deteriorated to the point that the existing roof or roof covering is not adequate as a base for additional roofing.
Start at the bottom side of the gable and overlap the sections of drip edge a few inches as you work your way up the roof see figure a.
Cover roof deck with 30 pound felt underlayment.
Use chalk lines to mark the points for placement of shingles.
Nail drip edge flashing to lower edge of roof.
Reattach loose boards in the sheathing.
Examine the sheathing for damage and rotted boards replacing the damaged sections accordingly.
Install the drip edge on the gable ends of the roof after you finish installing your underlayment.
Most importantly do a lot of research of the details of your roof how to properly flash a chimney looks like someone coated the whole thing valley details step flashings ect.
Also caulk around the entire perimeter seam.
Tear off a section dry it in.
Clear silicone would probably work.
Place the first and second row of shingles and also around vents and chimneys.
Snap vertical chalk line down center of roof.
Nail it every couple of feet.
Pry off old roof shingles with pitch fork.
Tear off the next and so on.
Use a tin snips to cut the drip edge to size.
If 50 percent or more of the total roof area is re roofed within a one year period the entire roof must comply as an approved class a b or c roof covering or approved non rated roof covering.
Staple felt every 6 to 8 inches.
Caulk around every window frame.
Finish the reroofing works.
The roof can be.
There are also provisions for fire classification weather protection re roofing roof drainage and solar power.
Per section 1504 1 of the los angeles building code labc wood shake or shingle roof coverings are not approved within the city of los angeles.
Use a good synthetic felt.
Sweep the roof as clean as possible taking the time to remove any stray nails that didn t come up in the removal of the shingles.
California roofing requirements under the california residential code cover everything from what suitable materials to use to requirements for roof coverings to roof insulation.
Trim tabs off roof shingles to create starter course.