Lexington Roofer

5 Most Common Causes Of Water Spots On Your Ceiling

Ever walked into your bathroom and looked up to find a mysterious water spot on the ceiling? Your not alone. We get numerous calls every month with reports of water spots on the ceiling. 99% of the time the stain is faint and only presents itself after a heavy rain. Obviously the roof is leaking right? Well not always. We are going to go through the 5 most common causes for water stains on the ceiling and you will be surprised they are not all related to your roof!

  1. The most common cause of water spots on the ceiling is a faulty exhaust pipe boot. Pipe boots are essentially a rubber grommet that fits snugly around a pipe protruding from the shingles on your roof. Pipe boots can crack as they age and dry out, allowing water to seep through slowly. Over time this type of leak can leave brown spots on your ceiling. Pipe boots are relatively inexpensive to replace and are the far and away most common cause of roof leaks. Have a leak Sands Roofing and Construction can help.
  2. Not enough slope on your porch or addition can cause leaks! If a roof does not have a slope of at least 3 inches of rise for every 12 inches of run (3/12 pitch) It will need more than just shingles. This is a code so if your having an a room, porch, or anything added to your home be sure your contractor has pulled a building permit. If you have this issue, unfortunately the shingles will need to be removed and a product called Ice and Water shield will need to be applied underneath the new shingles. These leaks normally occur in association with high wind and heavy rain. Wind Damage can also accompany this issue.
  3. Central Air conditioning in the attic? It can cause leaks. All air conditioning units condensate. There are drain lines in place to carry the water to the outside of your home but if they clog it can cause big problems. If the drain pan overflows and the Air conditioning unit continues to run, water will pool on your ceiling causing a brown spot and soaking your attic insulation.
  4. Duck work condensation. If you have been out of town and leave the air off, when it is turned back on, the metal registers can condensate leaving slight water stains on the ceiling. This should not be a reoccurring issue but it can and will stain your ceilings.
  5. Improper installation of roof valleys.   This is less common but we do run into this issue mostly when we are called out to roofs installed by what we call “storm chasers” (roofers that travel from town to town following storms) Often these companies are using unproven labor and very seldom have a supervisor do a post install inspection. Best way to avoid this issue is to stick with a local roofer that has a reputation and some years in the business.  Sands Roofing and Construction can help you with anything from roofing to repairing that damaged drywall on your ceiling.