How to Spot a Roof Leak Before It Causes Major Damage

By the time you see a water stain on your ceiling, the leak has probably been going on for a while. Water doesn't always take the shortest path down, it can travel along rafters and sheathing for several feet before it finally drips through somewhere visible. So the stain on your bedroom ceiling might be coming from a leak ten feet away on the actual roof. That's what makes these tricky.

Early warning signs most people miss

Before the obvious water stain shows up, there are usually clues. A musty smell in the attic is a big one. That's moisture sitting in insulation or wood that's not drying out. Paint peeling or bubbling on walls near the roofline is another. Sometimes you'll notice your energy bill creeping up for no clear reason: wet insulation doesn't insulate, so your HVAC works harder. If you've got an accessible attic, take a flashlight up there on a sunny day. Look for any spots where daylight is coming through, any dark stains on the underside of the decking, or insulation that looks matted down or discolored.

• Musty or moldy smell in the attic or upper floor
• Paint peeling or bubbling near the roofline
• Dark stains on attic decking or rafters
• Wet or compressed insulation
• Unexplained increase in energy bills
• Daylight visible through the roof boards in the attic

Where leaks actually come from

Here's something that surprises a lot of homeowners. Most leaks don't come from the shingles themselves. The number one source of roof leaks is failed flashing. Flashing is the metal pieces that seal around chimneys, vents, skylights, and where the roof meets a wall. Over time, the caulk or sealant around flashing cracks, the metal can pull away from the surface, and water finds its way in. Second most common is around pipe boots, those rubber collars around plumbing vents. The rubber degrades in UV light and cracks after 10 to 15 years.

The good news is that flashing repairs and pipe boot replacements are relatively inexpensive fixes compared to dealing with water damage inside your walls and ceiling. But you have to catch them before the damage spreads. If you're seeing any of these warning signs, or if it's been a few years since anyone's looked at your roof, give us a call at (913) 954-4501. A quick inspection can save you a lot of money and headache down the road.