Metal roofing has been around for centuries and has been proven to lengthen the lifespan of roofs and eaves of houses. However, owners have to keep in mind that metal roofing is quite situational and the type of weather that’s present will influence what material should be used. In most cases, metal roofing is made out of aluminum as a means of reflecting off excessive heat, or even galvanized steel which is especially resistant to the effects of rusting as well as warping from extreme temperatures.
There are two main parts of the metal roofing panel:
- Corrugated panels – These panels have ridges and valleys that alternate between each other. These are installed with other panels and are usually overlapped with seams.
- Structural panels – Compared to corrugated panels, they have broader and flatter areas that have supporting elements while one side of the panel slides towards a groove for the connecting panel.
Installing a Do-It-Yourself metal roof isn’t necessarily hard, but it is can be a bit tricky and will rely heavily on the climate that’s present. Based on this, the length of your house’s overhangs will differ depending on the climate and the material that is used for your roof.
Metal Roofs On Any Pitch
In most cases, metal roofs installed with corrugated panels are more prevalent in houses that are exposed to a drier and warmer climate while structural panels hold well with more temperate climates. Corrugated roofs tend to warp easily and turn brittle when in contact with heavy snow. Structural panels are effective in areas with heavy snow since snow and rain can easily slide off the side of the roof without any problem.
Metal Roof Overhang
Roofs that are installed with structural panels and corrugated panels have little to no overhangs left on the eaves and edges since metal tends to bend under the stress of heavy weight. On most houses, a metal roof overhang would have around 2” – 4”, and sometimes even less.
People might have the impression that overhangs are purely aesthetic in nature but they do have some important functions that will lengthen the lifespan of the roof and the house’s main structure. If combined with drip edge flashing, water is redirected and guided towards the appropriate drainage system. Usually, metal roofing is installed on rafters instead of a solid decking that’s more common for non-metal materials.
Metal Overhangs With Support
If you are planning on installing an overhang that is extending farther than 2 – 4 inches, then it is advised that support should be placed beyond the shed wall to give added strength to metal overhangs. Extending overhangs can create larger gaps between the walls of your buildings which can help mitigate danger of your metal roofing bending due to the weight.
What Are Ice Dams?
Roofs that have lower inclinations are more susceptible to damage from accumulating snow since water tends to run off slower which can result in water freezing on your roof. Roof with higher inclination tends to have shorter overhangs since water can easily run off the roof towards drains. However, professional roofing contractors would still recommend having at least a way of preventing ice dams from forming on metal roofs because this can cause severe damage.
Metal Roofs and Gutters
Gutters are generally used to redirect water towards carefully-planned drainage areas so that water won’t compromise the structure of houses. Metal roofs do not necessarily require gutter systems or downspouts since metal roofing does not leave cracks or crevices as easily as other materials. Most professional roofing contractors would still advise on placing gutters since they are paramount in regular roof maintenance.
Common Metal Roofing Problems
Owners of houses with metal roofs will encounter these problems often:
- Since water is smoothly moving on corrugated or structured panels, they tend to move fast and overshoot easily.
- Metal reacts faster to extreme temperatures, whether it’s extreme heat that can cause metal to warp or snow build-up which can cause metal to turn brittle.
- Gutters can collapse easily if installed on metal roofing. It is advised that owners seek the services of professionals to install gutters for metal roofs.
Overall, owners of metal roofs should have overhangs and gutters installed. No roof is perfect and the quality of your roof will eventually degrade if left unchecked against the forces of nature. If ever you do try to install overhangs on your metal roofs, it is best to seek the services of a skilled roofer for careful planning and inspection. Moreover, having a professional roofing contractor Hainesport NJ can help you install the necessary panels, overhangs, and support which can help lengthen the lifespan of your home in no time.