Roof Felt Problems

Four reasons asphalt saturated felt roof underlayment fails asphalt saturated felt roof underlayments will fail if torn or damaged during installation.

Roof felt problems.

To counteract the forces that are exerted on the roof the roofing and insulation must be fastened and secured to the perimeter and the main roof structure. Flat roof defect 2 blistering. Even small amounts of trapped moisture can result in your flat roof membrane detaching from the layer below and cause roof blisters. A common problem is when roofing felt on a roof with an enclosed soffit disintegrates around the eaves of a roof.

Buildings magazine examined which problems are most common and the conditions that can either cause or be the result of premature failure and reduced service life of low slope roof systems. Most damage shows up either in flashing that s deteriorating due to weathering and oxidizing or in flashing that has come loose. If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic. This is the most common roofing problem and it tends to get worse during the day when the heat of the sun causes the trapped moisture to expand.

This is not a self diagnostic guide but rather an informative list of some of the problems most often battled by building owners and facilities professionals. Wind driven water that would normally flow down the felt and into the gutter instead drips onto the soffit and then back onto the ceiling of the room below through gaps in the felt. Obvious or unforeseen roof problems are always a pain and undoubtedly a significant expense. Sometimes the water shows up at a ceiling spot distant from the leak.

Depending on the style of your house s roof you probably have it in the valleys around the chimney and pipes and around any dormer windows or skylights. Find and fix a leaking roof step 2. 12 roof repair tips. This lets any water that gets on the roof run down the underlayment and over the drip edge.

Often water runs to openings in the vapor barrier such as at ceiling light fixtures. Specifically if the underlayment.