Moss on your roof re-routes water, forcing it to flow in directions where it shouldn’t be running. It seeps down into the nails that hold the shingles in place and subjects them to rusting, which weakens the roof over time.
Moss gets wet from our seasonal rains and stays wet longer, even when the weather dries up. This causes the shingles, especially the cedar shake type, to remain wet. Prolonged dampness leads to rotting. If not attended to, you will most likely be looking at having to replace the entire roof, which we all know is a costly venture. Moss traps other environmental debris, such as pine needles and leaves. Heavy chunks come off involuntarily, and even at a greater pace during high winds, which land in your gutters. This plugs your drain and causes water to overflow down onto your siding, resulting in wood damage along the fascia and rafter tails. Over time, the wood gets so soft to the point where it won’t even have the stability to hold a nail.
A lack of attention to the moss on your roof means that you are also ignoring issues with the chimney and the moss that is growing there. You may not see it from the ground, but you can safely assume that if moss is on your roof, it’s down in your chimney as well. This will keep the bricks wet longer, which will cause the grout to soften and eventually deteriorate. Moss can grow under the shingles and, most likely, lift them. This leaves them extremely prone to wind damage. If your roof has suffered from moss damage, find an experienced Roselle, NJ roofing contractor.