Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option.
Muдequitos in a bundle of roofing.
The other builder i load so i usually make three stacks for a 30 35 sq house.
1 bundle of arcs in a little over a minute with a feeder of course my feeder at the time was my right hand man he kept supplied with shingles faster than i ever could by myself.
If installing a new roof on a bare roof deck cut 6 inches off the first starter course shingle and apply the rest of it on the lower corner of the roof overlapping the rakes and eaves by 1 2 inch.
A look at different roof installation methods.
A pvc roofing system such as the one from ib roof available in either 50 mil 60 mil or 80 mil thickness would be an ideal type of a roofing membrane for such a roof.
Or if all the sheathing will be replaced.
The system includes all the.
How to install a roof over an existing roof.
The roof will not be entirely flat as you will need to plan for rain water drainage via water drains placed strategically within the roof surface.
One big advantage to metal roofing is its light weight which means metal roofing can be installed over an existing shingle roof.
Roof coverings are addressed in chapter 15 of the ibc and chapter 9 of the irc.
Both codes provide requirements for roof coverings commonly used on high sloped roofs such as asphalt shingles clay and concrete tile wood shakes and shingles and metal roofing and for roof coverings typically used for low slope.
The standard nailing for asphalt shingles is a four nail pattern with nails placed 1 inch from each end of each shingle and then two nails placed 12 inches in from the end nails.
On laminated shingles this nail spacing is not as immediately apparent as it is on three tab shingles where the nails are placed above the cutouts.
The roof joists beams etc.
I have roof top delivery for every roof except a small multi layer steep tear off every now and then.
Could have been.
Cr tests only asphalt shingles but below we also offer information about faux slate and composite tile.
A metal roof can last 50 years while slate roofs can last more than 100 with diligent upkeep.
However there are some things that you will want to check out before doing it this way.
