If you're experiencing leaks in your metal roof, one common culprit could be the stacked gaskets. These "boots" or coverings around pipes that protrude from the roof are often a weak spot for water to seep through. As a trusted Roofing Contractor in Charleston SC, we know the importance of properly ventilating and waterproofing these areas where heating, ventilation, air conditioning, and plumbing systems pass through the metal roof. That's why we pay special attention to the plug caps of these pipes to ensure a watertight seal. Most stackable gaskets are made of rubber or rubberized material that lies flat on the metal roof and forms a seal, but also “squeezes” around the pipe to form another seal.
The movement that occurs in the metal roof due to expansion and contraction always tests these joints. However, these coatings can deteriorate due to constant exposure to the elements. Rust and corrosion weaken metal panels, making them more susceptible to leaks. We have often seen that roofs fail prematurely due to simple errors made during installation that affect the tightness of the roof. If the metal coating of the roof begins to peel off, rust can corrode it into holes, allowing water to enter and can even cause structural problems in the roof.
The most common cause of metal leaks in roofs are the screws that are used to secure the panels to the building structure. Common signs of a leaking metal roof include water stains on ceilings or walls, drops or moisture inside the building, and the presence of rust or visible damage on the surface of the roof. In this blog, we'll examine six typical causes of metal roof leaks and explore several repair options. Even so, you should call a roofer to come and do a more thorough repair and replace the roof panel or possibly the entire roof.
When the screw is driven into the metal roof panel, the rubber grommet forms a “joint” between the roof panel and the screw head. The metal roof looks good, but damn it, it's hard to find companies willing to touch a metal roof (in the Seattle area, by the way). The installation of metal roofs is very different from the typical asphalt shingles that most roofing companies have experience installing. If you understand the common causes of metal roof leaks and know how to address them, you can maintain the integrity of your roof and protect your property.
