Before you install metal roofing repair any damage to the wood under the shingles.
Install metal roof without sheathing.
If your home s existing shingles are pretty curled you could install a textured metal roof such as a metal shingle shake or tile directly over the curled shingles along with underlayment.
These requirements cover the design and construction of roof ceiling systems including roof framing roof drainage roof sheathing ceiling finishes roof ventilation and attic access.
You also need to add.
Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.
Then cover the entire roof with a layer of insulation and secure it with a staple gun.
Metal roofing is also available in the form of shingles.
Modern metal roofs are expected to last 30 years or longer.
You will want to do this on a dry and sunny day in order to minimize the chance of any water or moisture damage to your house.
You ve already determined that you are going to install metal roofing rather than just putting up new shingles so you need to remove the old roof.
Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps.
When installing a metal roof over an existing roof insulate the spaces between the wood strips with rigid insulation to prevent condensation before installing the roofing.
While metal roofing doesn t require plywood underlayment there are circumstances in which you may wish to install plywood to anticipate future roofing needs or to offer additional soundproofing.