- Pitched Roofs
Oftentimes, pitched roofs have damage which is difficult to
recognize, but can lead to structural problems. Sagging roof
sections can lead to leaks and deck damage due to high moisture.
Sagging roof beams can indicate structural failure, and be much more
expensive to repair. Damage caused by falling tree limbs is
oftentimes also unrecognized. Cathedral ceilings often lack proper
ventilation, which leads to moisture buildup in wooden structures.
- Shingles
Unlike what most people think, roofing shingles are not
intended to be waterproof, but instead, to shed water down a series
of overlapping shingles, and thus, keep water out of the building
structure. As such, any water which gets underneath a shingle will
enter the structure through the roof. Shingles can be made of many
different materials, including asphalt, mineral fiber, slate, and
wood. Clay tiles are also popular on southern homes.
- Flat Roofs
In order to protect a home from the elements, flat roofs
must be both completely watertight, and well ventilated. Moisture
buildup is often a problem, as water takes a far longer time to
leave a flat roof than a pitched roof. Roofs should not hold
ponded water, as it is unsanitary, and can damage the roof covering.
Instead, proper provisions should be made for correct drainage,
through either the perimeter, or the center of the roof.
- Built-Up Roofs
This roof type consists of several rolls of asphalt
sandwiched between several layers of roofing felt and covered with a
mineral aggregate, like gravel, slag, or crushed rock. Roofing of
this kind is difficult to inspect, as very little damage is readily
apparent to the naked eye. Structural damage is common because the
asphalt and roofing felt are susceptible to damage caused by the
sun's ultraviolet rays.
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