Description
Galvalume Flat Lock Roofing Panels
24 Gauge galvalume steel flat lock roofing panels are an aesthetically pleasing solution dedicated to installation on steep roofs. Due to their flat shape, these mechanical seams are not intended for use in areas set for the occurrence of very heavy rain and snowfall. It is a premium solution that allows for above-average attractive roofs due to the lack of protrusions from the entire slope.
Although installing mechanical lock panels requires a bit more skill and knowledge than snap lock, such connections are much more durable. An additional advantage of flat lock is the possibility of using an adhesive, which will improve the tightness of the entire roof and ensure long and trouble-free operation. With the zinc coating, up to 70 years of lifespan is possible.
Flat Lock Roofing Panels – Endurance, Effectiveness, Affordability
As a sheet metal vendor, we have spent over 14 years analyzing various metal roofing technologies for their performance, cost effectiveness, durability and also failure rate. So far, flat lock panels have performed more than adequately, as long as those responsible for installing them have adjusted the curvature of the roof (no less than 3/12, optimally more than 4/12) and have not made a mistake at the joint sealing stage.
With enough force, you are able to produce a connection that will resist the action of even very strong winds. The aerodynamic surface, which cannot be achieved with standing seam snap lock roofing panels, reduces the risk of roof rupture in the event of a tornado. This is not insignificant, as flying steel or copper sheets can pose a real threat to the lives of those nearby.
At the same time, the undoubted advantage of flat lock galvalume roofing panels is their ease of production, which contributes to the low purchase price. This is a phenomenal solution for installing roofs on large buildings that exceed 10,000 sqft, although of course mechanical lock also works well for residential applications. It’s versatility, simplicity and great personalization possibilities are the key to your success.
How to Use Galvalume Flat Lock Roofing Panels?
Installation of galvanized steel flat lock roofing panels is recommended only for steep roofs with a curvature of more than 3/12, and preferably 4/12. Due to the lack of soldering, the joints are not perfectly sealed and the slow drainage of water could lead to serious leaks throughout the roof.
Mechanical seam roofing panels should also be installed on a sufficiently strong sheathing, which will provide the entire structure with sufficient rigidity and stability. As a manufacturer, we recommend using plywood with a thickness of no less than 5/8”.
We also recommend that mechanical lock flat seam roofing panels be placed on synthetic underlayment from recommended manufacturers like Roofnado, Owens Corning, DuPont as well as GAF. A thick layer of material insulating the roof structure reduces the risk of mold and extends the service life, which of course generates savings.
Galvanization is a metal coating process giving roofing panels perfect durability that outclasses standard paints, it also signifficantly reduces the risk of rusting. However, we do always recommend cleaning metal roofing panels only with a soft brush and water and detergent. This method will be completely sufficient and will remove the vast majority of contaminants, and will not scratch the zinc coating.