Building and roofing contractors generally advise against a flat roof in Dayton, OH for a residential structure because these roofs are prone to leaking. There are certain reasons this happens and strategies that can help prevent the problem. Some property owners really want that flat roof for aesthetic purposes; perhaps they have a modernistic home that would not look the way they want with a pitched roof.
Flat Roof Advantages
Having a flat roof in Dayton, OH can actually save the homeowners money since it costs less to install upfront. Less material is needed and the time for the labor is shorter. This must be weighed against the potential aggravation if the roof starts to leak much earlier than would have been the case with a pitched roof. Utility costs also tend to be lower because there is no extra space under a flat roof to heat and cool.
Difficulty Shedding Water, Pressure From Puddles, and Cracks
A true flat roof does not shed water the way that a pitched roof does. It might be constructed with an extremely slight slope, having a peak in the middle. Over time, though, the middle areas of the roof may sag to a certain extent, allowing rainwater to puddle up there. That puts pressure on the roof and can cause cracks in older material.
Most Vulnerable Spots: Flashing
Flat roofs are particularly vulnerable to leaking in any spot where another structure rises up through the roof. That includes skylights, vents and chimney pipes. Flashing should be installed when the roof is or when these features are added. The flashing should be inspected and maintained annually at a minimum. Additional devices can also prevent leaks around various roof features.
Flashing also can start to pull away from the edges as the roofing material expands and contracts in heat and cold. Regular inspections and maintenance can prevent leaking and moisture from becoming trapped under the roof. Building owners can hire a roofing contractor to do the inspection and maintenance services as recommended. Click here to learn more about one particular contractor providing installation and service for flat roofs.
