Roof Appears Wavy

Causes of wavy roofs roofs may become wavy over time or they may have been built that way to start with.

Roof appears wavy.

Defective shingles there is always the possibility that the cause of a wavy roof is the result of a manufacturer defect. We will highlight the 4 main causes of a wavy or warped roof. When i say warms up i don t mean real hot just in the mid to upper 70 s although direct sunlight. If you notice the wavy look it could be due to a number of reasons.

Despite the roof being sized and installed in accordance with the building code waviness between framing members may occur. Most that become wavy do so over time. Thankfully this is something that can be fixed with just a little time and heat. Home exterior roof roof waviness.

This will not affect the performance of the roof. Purchase only high quality roof shingles from a good source. I often see sagging roof rafters that have been overspanned and sometimes plywood roof decking that has delaminated can result in a wavy appearance. After installation your shingles should be aligned in straight rows without any wavy appearance.

While a wavy roof is aesthetically unpleasing does it affect the performance of the roof. Although we generally think of our roofs as one of the major components of our home that keeps us dry we also need to think of them as a key structural component. If the roof had more than one layer of shingles that could be a cause. To determine if a wavy roof is more than just an eye sore you must determine the reason for the wave.

If the material was damp if the day was humid or if the paper bubbled up a bit then it can produce a wavy appearance on your new roof. The felt paper used on the decking was potentially wet or bubbly when laid down. The waviness generally does not cause a roof to leak but it may be architecturally unsightly or occasionally can indicate a problem. 10 25 2009 02 35 pm 4.

If your roof is sagging wavy or bowing there are six important things in the attic to check from a structural standpoint. You can check for damaged shingles or any other damaged areas of the roof including a wavy roof. This is your number one best case scenario and also the most common because the paper should flatten out completely within a few weeks. Frost outline on sheathing joints and over roof framing members.

Frost patterns on a roof can give the appearance of waviness without the condition existing e g. It seems during the day when it warms up abit the fiberglass takes on a definite wavy form all the way from the front to the back. As always contact a professional for a thorough inspection and roofing consultation. Cheap shingles are often thin and easily torn and they don t often adhere to rigorous quality controls and inspections.

Causes of a wavy roof.