Installing Asphalt Roof Panels

Detailed instructions on how to install ondura corrugated asphalt sheets on a roof.

Installing asphalt roof panels.

Do this until the entire roof is covered. Angle grinder 1 x research source the fastest option. Mounting methods for solar panels on asphalt roofs are important for contractors to understand especially when dealing with roof penetrations and warranties. The felt is laid in horizontal courses overlapping the eave ice and water protector by 4 and the valley membrane flashing by 6.

15 asphalt saturated underlayment be used with roofs having slopes of 4 12 18 degrees or greater. According to graboski to be properly installed on an asphalt roof solar panels must be mounted on racks attached to the roof deck. For asphalt shingles national roofing contractors association recommends. Roof installers secure ondura roof panels a corrugated fiber and asphalt roof panel directly to purlins or on top of an existing roof covering.

Paint or prime cut edges to prevent rust. If yours do not. Circular saw 2 x research source slower than angle grinder but follow same step 2 pre drill holes on the ridges. A single layer of no.

Allow for a minimum of 18 inches 46 cm if you need to lap to complete the run. Some panels have pre drilled holes. Graboski uses a non penetration system called snapnrack but most mounting systems require roof penetration. Step 1 cut the panels to the desired length.

While the asphalt shingles will be the primary water shedding roof layer there are many benefits to installing a roof underlayment. Continue installing the metal panels making sure that the edges overlap at least 1 in 2 5 cm or as required with the adjacent panel. If you feel the need for sealants lay a bead of 100 silicone or adhesive silicone before laying the sheet down and make sure the bead is towards the edge of the. Ondura roof panels hold snow loads up to 55 pounds per square foot and can withstand winds up to 100 mph.

Ondura corrugated asphalt roofing is designed for easy handling and installation for any size roofing project. For project specific information and more details on a fencing application please contact our customer service department at 1 540 898 7000 opt 2 m f 8a 5pm est. Ondura roof panels can go on new or existing roofs. The panels will need to be either butted against each other or the backside painted with a high quality exterior latex paint.

For roof slopes between 3 12 14 degrees to 4 12 18 degrees nrca recommends a minimum of two layers of no. Lightweight and easy to trim ondura roofing has. Wear hearing and eye protection.