As manufacturers continue to improve the designs and increase the number of available colors, the number of homeowners who switch to metal roofing also continues to increase. When quality metal roofing is correctly installed, most homeowners should expect it to protect their house, its contents, and the occupants for a long time.
Like all roofing materials, however, metal roofing can be subject to the development of leaks. Homeowners who are struggling with a leaking metal roof may find the answers they need in the following information.
Is it a leak or is it condensation?
Homeowners who are seeing a water stain on their ceiling or noticing a drip inside their homes will first want to determine whether the problem is an actual roof leak or whether it could be caused by condensation. Metal roofing is especially prone to condensation issues in situations where its surface is likely to be cooler than the surrounding environment. Homeowners who find that their metal roof is dripping water due to condensation will want to speak to a roofing contractor about adding or increasing ridge and soffit venting or installing baffles to improve airflow beneath the metal.
Is the leak due to a flashing issue?
As with most other roofing materials, metal roofing must be installed with proper flashing to prevent leaks from occurring near chimneys, flues, vents, and plumbing stacks. In most cases, leaks related to flashing issues can be resolved by having the roofing contractor examine the existing sealant around these obstacles for leaks or splits and then repair or replace the sealant. In some instances, an adhesive gasket made of flexible material may need to be applied under the sealant product to ensure a leak-proof seam.
Is the leak related to the metal screws used during the installation process?
The special screws used in the installation of metal roofing are designed with a rubberized washer that, once screwed into place, cushions and seals the head of the screw and water from infiltrating the opening where the screw is located. However, if the screw is not properly seated, the rubber washer will not be correctly positioned to seal against roof leaks. This problem can occur in situations where the screw is tightened too much or not enough, as well as when the screw is misaligned or held at the wrong angle when installed.
Homeowners who are struggling to determine the cause of roof leaks or how to address them can get the answers they need by discussing the problem with a reputable roofing contractor in their area.