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.

Install metal roof without sheathing.

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. 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. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Modern metal roofs are expected to last 30 years or longer.

Chapter 8 includes specifics for such things as allowable lumber to use the moisture content of fire retardant treated wood allowable rafter spans and use of. 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. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. 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.

Metal roofing is also available in the form of shingles. Next use 1 inch nails to secure some metal edging to the perimeter of the roof. Then cover the entire roof with a layer of insulation and secure it with a staple gun. 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.