Installing Steel Roofing Valleys

Lap successive sheets of metal flashing a minimum of 12 inches and seal laps.

Installing steel roofing valleys.

Install an underlayment centered in the roof valley. Steel roofing can be costly but it is a lifetime investment. Always be sure to refer to your local codes to see if they demand a particular kind of valley installation. Flashing should be installed in all of the valleys.

Then cover the entire roof with a layer of insulation and secure it with a staple gun. Open valley shingle installation. An open valley relies on metal flashing for protection. Installing metal flashing for your roof project is a challenging but essential step to take to ensure that the new roof remains as weatherproof and as strong as possible the following steps will explain how to install metal flashing in roof valleys.

Metal valley trim also known as metal valley flashing is beneficial because it drains water away from the structure of your metal building which helps prevent moisture damage. Before you install metal roofing repair any damage to the wood under the shingles. Florida building code allows a minimum pitch of 2 12 for grand rib 3 panels as long as lap screws and sealant are applied to the laps to prevent water from siphoning over the ribs see fig. Next use 1 inch nails to secure some metal edging to the perimeter of the roof.

Fold the top over the roof ridge and cut the bottom along the drip edge metal. Installation of panels roof pitch this style of metal roofing panels requires a certain degree of pitch to ensure proper water drainage. Galvanized steel which is created by using a soft layer of zinc to protect the inner layers is the most common type of steel roofing. With a clean valley you can lay down some peel and stick roofing membrane.

Indeed california valleys are prohibited in some areas. Install synthetic roofing underlayment or felt paper according to manufacturer specifications and then install the first piece of valley flashing. Noise is usually not a factor if you are installing a steel roof over asphalt. Recommended procedures of basic valley flashing installation.