5 Small Signs Your Roof Is Leaking

Often, a leaky roof isn't obvious. Thankfully, there are some surprising signs that you might have a roof leak on your hands, enabling you to take necessary action as soon as possible.

1. Moss Is Growing on Your Roof

Moss is a green plant that can start to grow on your roof under the right conditions. Since moss needs moisture to thrive, the fact that it's growing on your roof shingles often indicates that there is moisture to be found there. As the moss continues to grow, its roots will burrow down, further separating the shingles and widening the area where water seeps through your roof.

2. Chimney Bricks Are Dark and Damp

The place where your chimney juts through the roof is a possible place where water can seep through your roof when it rains. If the chimney flashing is bent or otherwise in need of repair or replacement, rainwater can trickle right down the sides of your chimney. The symptoms of this are damp, darkened chimney bricks, which are easily visible, possibly all the way down to the bottom of your chimney.

3. There Is a Musty Odor in the Home

Water from a leaking roof can seep down behind the walls in your living areas. This water sits stagnant and can produce a musty odor that emanates through the walls. If you notice that one or more rooms in your home smells musty, it's possible that moisture is getting into your home from your leaky roof.

4. Wallpaper Is Peeling

When water trickles through the roof that is supposed to safeguard your house, it can collect where the walls meet the ceiling. The wallboard behind your wallpaper becomes saturated over time, and eventually this affects the glue on the wallpaper, causing it to peel away from the wall. This will most often happen at the tops of your walls, where it is least noticeable.

5. There Are Dark Spots Around Ceiling Vents

Your home's ventilation system leads outside at some point on your roof. Since these ducts penetrate the roof, there is a higher potential for a roof leak around this area. If water is getting in through your roof near the ventilation system, mold may begin to grow inside your home's ducts. When you run your HVAC system, the mold spores spew out and around the vents, where more mold grows, causing telltale dark areas around the vents.

A leaking roof can cause all kinds of structural damage to your house. If you notice any of these signs, it's worth it to have your roof inspected to see if a roof repair or replacement is warranted.


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