How to Install CMF 5V Crimp Roofing
At ASI Building Products, we strive to provide our customers with the highest quality construction components available in the industry. Sometimes that means providing you with products we’ve manufactured ourselves, such as the metal roofing products of CMF Roof, a wholly owned brand of ASI. One of these products is the 5V crimp metal roofing panels used in warm weather climates where it’s important to use building components that feature moisture and corrosion control.
CMF 5V crimp roofing has a uniform galvanized coating that can withstand rust even in hot and humid climates. It also features a tight, leak-resistant edge thanks to its anti-siphon side lap. If you’re interested in 5V crimp roofing and are curious about how to install it, we have provided some handy tips for you to follow:
- When handling the 5V crimp roofing sheets, it is recommended that you use a spreader device on the forklift for longer length bundles to prevent any of the sheets from bending in the middle. Be sure to protect the panel edges when loading and unloading so you have good fitting and aesthetically pleasing joints when you’re done with the installation.
- Cutting and trimming may be necessary. Use a steel cutting blade in your electric saw, or for better results, use a portable shear profiled to conform to the panel. This way you’ll get perfect, across-the-profile cutting.
- When you use 5V crimp metal roofing, you are required to apply the roofing with a pitch of at least 4 inches per foot.
- To avoid water from entering the roof, the panels should be laid on the end of the building, away from the prevailing wind so the side lap seams face away from the wind.
- A positive vapor barrier—such as plastic or builder’s felt—should be installed so there is a separation between the panel and the wood if you’re installing the panels over green or damp lumber.
- These 5V crimp metal sheets should be laid from eave to ridge, with a recommended minimum 6-inch overlap. To achieve a successful “up the slope” look, the second sheet should overlap the first panel, the third should overlap above the second, and so forth. The first or bottom sheet should extend from 2 to 3 inches from the eave. Be sure not to bend the panels down at the eaves, since this will close the V-drain.
- Use galvanized nails or plated self-drilling wood screws to fasten the 5V crimp roofing panels. These nails should feature a spiral or ring shank design with a neoprene gasket under the head.
- To correctly fasten the 5V crimp roofing sheets down, you should drive the nail through the steel so the nail washer is packed in tightly against the metal. Make sure not to drive the nail in too much since this could dimple the metal, which could lead to water collecting in the area and seeping through.
- The nails should be two inches long so they can penetrate about 1-1/4 inches into the purlin if you’re driving them through the 5V crimp panel rib.
Call or e-mail us today to find out more about 5V crimp metal roofing panels from CMF for your project in Tampa, FL, Atlanta, GA, Birmingham, AL, Jackson, MS, or elsewhere in the southeastern United States.