Installing Metal Roofing To Strapor Not To Strap
This happens on rare occasions here in nova scotia.
Installing metal roofing to strapor not to strap. 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. You are essentially sealing off the metal roof with this flashing and you need to make sure that is securely fastened. Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. We are in the process of contacting contractors regarding the installation of a metal roof on our home and with each contractor that comes to the house we are getting more and more confused.
Question from june in new hampshire. Standing double locking seam does this tend to sweat on top of asphalt shingles. You can use 1 inch nails for the installation of eave flashing. Hurricane straps provide extra security for your home s roof.
Should it be installed over the existing asphalt or strapping 2. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Pa models installed vertically in the top of a grouted masonry wall with 6 embedment and 12 0 148 x 3 nails achieve an allowable uplift load of 1 890 lb. The easiest way to install hurricane straps is during the construction of the home.
Metal roofing is also available in the form of shingles. For pa models 0 148 x 1 1 2 nails may be substituted for 0 148 x 3 nails at 100 of listed load and with a 15 increase in deflection. After the home is built you run into major issues. The eave flashing or edging is just the steel metal strips used to cover the entire perimeter of the roof.
Although you can install corrugated metal roofing over shingles for the best foundation it is recommended that all the old roofing be removed. I have used metal roofing on sheds strapped with no sheathing and there is a minute amount of condensation when temperature extremes take place. Work at a comfortable steady pace trying not to rip up or carry off too much old roofing at once. In the local area london on the two metal roofing companies i have talked to so far have two different approaches to installing metal roofs.
How to install hurricane straps to a roof. They are able to withstand winds of more than 100 miles per hour.