It’s not hard to install metal roofs on your own. However, it’s better to hire a professional contractor. Most do-it-yourselfers don’t follow the correct procedure and replace their work. Hiring a professional to install your roof will save you time and money. They’ll also know how to minimize end laps, use a reinforcing plate and top panel strap, and apply sealant.
Obey all safety precautions
The installation process is risky, and workers must be protected from unforeseen hazards. For example, improperly placed materials can lead to a fall hazard, and falling materials can seriously injure the workers below. It’s also important to secure ladders and ensure that materials cannot slide off the roof’s edge. In addition, employers should post signs warning workers of potential hazards.
Another safety precaution involves using proper tools for the job. The installation process usually involves using hand tools, which may pose a risk to the installer. To minimize the risks, use approved tools, such as pneumatic or electric sheet metal shears. Proper use of these tools will ensure the cleanest cuts and minimize the risk of injury. Also, make sure to clean up debris, as well.
Safety gloves are also essential for a successful metal roofing installation. Metal roofing materials are very slippery, and metal roof installers should always wear gloves to protect their hands. Heavy leather gloves offer the best protection against injuries. Moreover, they prevent dirt from damaging the metal panel’s surface. Wearing gloves is also recommended for those who need to work on steep roofs.
Avoid over-tightening fasteners
Do not over-tighten exposed fasteners, which may lead to loose screws or compromised seals. It may also lead to premature fastener failure or leakage. You should avoid using screws with zinc plating, as these can corrode under the right conditions.
Professional installers use specialized screw guns set to precise torque and speed specifications. You should also use a large washer when using screws. These precautions will ensure a secure seal. A properly installed metal roof will be stronger than a weaker one.
Avoid angled screws
If you want to install metal roofing on a roof, it is important to avoid angled screws. These screws will create a weak seal between the metal panels and the roof deck and can eventually leak. Before installing your new metal roof, it is important to pre-drill holes in the substrate for the screws. It will allow you to plan the spacing of the fasteners properly. This process will vary based on the substrate type and your metal roof’s design.
If you want to avoid angled screws, use a screw gun for your fastening needs. Screw guns have variable torque settings and allow you to change the pressure you apply to the screws. They are also much less likely to cause problems by improperly tightening fasteners.
Another common mistake that people make is using improper screw threads and screws. The wrong type of screws can leak if they aren’t tightened enough. When installing metal roofing, it is crucial to pay close attention to the screw threads to ensure a secure fit. Incorrect screws can also cause the roof to leak or crack. To avoid this, use a screw gun designed for this purpose and set it to specific torque and speed specifications.
Avoid oil canning
Oil canning can be prevented by choosing a metal roof material with low reflectivity. A dark-colored roof can lead to oil canning, especially when exposed to sunlight. For this purpose, choosing a lighter color will be beneficial. Moreover, a panel with striations and small ribs will minimize oil canning. The thickness of the metal will also reduce the risk of oil canning.
Another factor that causes oil canning is an uneven or unbalanced roof deck. Check spotless and seamless exteriors by Klauer. Installers may have to adjust sheets to correct this misalignment. It stresses the metal and causes oil canning. This problem can occur in any color but is worse on darker or higher-gloss surfaces.
First, make sure that the ribs are properly spaced. You want to create an attractive view from the ground, but you shouldn’t over-spacing your ribs. It is because water will naturally flow toward flat areas. To avoid this, space the screws 24 to 30 inches apart.
Also, make sure that you pre-drill the screws. It will prevent them from being driven at an angle. It will also help you plan how to space them. Pre-drilling the holes may make sense if you’re installing metal roofing on a structure with a solid wood substrate.
Installing metal roofing over an asphalt shingle roof is another option. However, it is important to seek approval from local building officials. Some areas only allow a metal roof over one layer, while others will allow it over two layers of shingles. Typically, a metal roof over a single layer of shingles won’t have any problems, but you should always consult with a professional.