What happens if you have a leak on your roof?
In addition to having to pay extra for the roof to be fixed in most cases, a leak can also ruin other valuable items in your home or building. Metal roof leaks are a possibility; some of which are unfortunately out of our control and some of which are due to human error.
Can a failed flashing point cause a leak?
Failed flashing – Flashing is the material, typically metal, added to prevent moisture from entering at joints or additions on a roof, like pipes, chimneys, or valleys. Since they are add-ons requiring sealants and precise installation, flashing points could easily be the source of a leak.
What causes corrosion on the underside of a roof panel?
Underside corrosion – If the metal is improperly coated on the underside of the panel, corrosion could take place. This occurs when water molecules get trapped underneath between the panel and the insulation or underlayment, which can cause the metal to weaken if not coated.
Why are the screws on my metal roof coming loose?
While some metal roofs may last for decades without maintenance, the screws that anchor the metal roof material to the building may work loose. There are several reasons why the screws on a metal roof may come loose; understanding what causes loose screws can help minimize how often a roof requires repair.
Why are the shingles on my roof coming loose?
Shingles have a sealant on their underside that helps hold the shingles in place, Crowe explains. If the shingles become old and brittle, the sealant can fail and the shingles, even when nailed down properly, can come loose in severe winds.
Why do roofers need to install flashing under new shingles?
Flashing should be installed underneath new shingles to prevent water damage. Roofers sometimes poorly install flashing over the shingles instead of underneath, which compromises their water resistance. Even if caulking is used, the roof will have to be re-caulked often to avoid leaks if the flashing isn’t installed correctly.
What should the overhang be on a new roof?
Shingle Overhang The end of a roof’s shingles should only overhang off your roof between 0.5 and 0.75 inches if drip edge is installed. Too little overhang directs water into the fascia boards. Too much makes the shingles susceptible to sagging, cracking or blowing off in high winds.