Oh, and the cable line was relocated and its hole sealed up! With layers properly added to repel and divert water, the vinyl siding and roof shingles were re-installed. This was overlapped by new housewrap and topped with new, properly sized flashing. Mosby installed an ice and water shield at the roof transition from the front porch and along the roof gutter line. Outside the house, the new vinyl siding on the side of dormer and the new roofing in a large area around the leak area were removed and saved for re-installation. The owner chose to complete the painting themselves. In the foyer, the damaged plaster was chipped out and replaced with drywall that was mudded, taped and skim coated to match the existing plaster finish of the undamaged walls and ceiling. This keeps the warmth inside the house where it belongs, not heating the roof to cause problems. Inside the house, insulation was added to where it had never been before. The scope of work for this project included: The Mosby Consultant found the causes, and a Mosby technician enacted the solutions. Just as the source of a water leak can be difficult to detect, the solution to solve it is usually multi-faceted. Add a hole and improper flashing from a recent roof installation to the mix, and the water had an open invitation to run into the house. In this case, an uninsulated dormer made it easy for moisture to seep inside. Water leaks tend to be complicated to solve because water does not follow a logical path, it follows the path of least resistance. And now the water had a cable company hole and improper flashing to work with, sending the water straight down through to the foyer ceiling, soaking the plaster and creating a mess. In the case of heavy snow and ice during the last bad winter, that’s even more ponding water than usual. This was the cause of the long-standing interior moisture issues. When the roof was snow and ice covered that part of the roof would melt faster, causing water to pond which was then wicked up by the dormer structure. And this was the last piece of the puzzle.īecause there was no dormer insulation, interior heat kept that part of the roof warm. The Mosby Consultant crawled into the attic area, and in the corner where the leak started there was no insulation in the dormer wall ( shown above) that was installed 30 years ago. So a cable company hole in the roof and improper flashing were working together to let moisture inside, but what causes the major leak during heavy snow and ice? Short flashing can act as a conduit directing water into the house rather than away from it. Lifting up the shingles revealed step flashing that stopped too short ( shown above). ![]() That was considered a contributing factor because the hole wasn’t big enough to create the kind of damage seen in the foyer. ![]() A Mosby Consultant went up on the roof for a look and immediately noticed that the cable company had drilled a hole to run a wire through the roof that wasn’t properly sealed up. With a reputation for solving water leaks, the family called Mosby Building Arts for help. The heavy snows and ice of winter 2013-14 compounded the problem when ice damming on the roof backed up into the dormer and poured through to the foyer ceiling, creating the situation shown above. The interior walls of the dormer were often condensated, and heavy rains would lead to water damage on the lower level foyer ceiling.Įven though these were previously billed as solutions for the leak, a new roof and new siding did not stop the leaking. Louis, MO home had a leaking dormer ( shown above) that was problematic for years.
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