Hail Damage To Asphalt Roof Shingles Haag

Hail damage to asphalt roof shingles by timothy p.

Hail damage to asphalt roof shingles haag. Mineral granules from asphalt roofing may appear at the ends of downspouts. Hail damage to asphalt shingles may consist of punctures tears fractures bruises or the more common displacement of granules. Start by looking for evidence of hailstorm damage from the ground. However there are no published scientific studies to validate this statement.

Functional hail damage to asphalt shingle roofs is characterized by a localized loss of granules usually circular in shape and a fracture in the mat. The loss of protective granules exposes underlying asphalt to damaging sun rays. Metal components such as metal siding air conditioner or heat pump condensers and of course automobiles left outdoors may be dented or damaged. Hail damage visible from ground level.

Response of test house to vibroseis vibrations and environmental forces by david teasdale jack kiker lewis oriard charles dowding and scott morrison. Hail caused damage to an asphalt shingle in roofing is rup ture of the reinforcing mat or displacement of granules suf ficient to expose underlying bitumen. Field evaluation of damage from wind and flooding by david teasdale. Introduction controversies can arise with regard to how asphalt shingles are damaged by hail and what hail damage actually looks like.

Granules on asphalt shingles help to protect the asphalt from uv light degradation caused by the sun. Herzog and scott j. If hail damage has caused granule loss on your roof shingles it could also affect the performance of the shingle in addition to the aesthetics. A fracture in the mat is evidenced by a visible relatively clean fracture an indentation in the mat of the shingle and or localized softness in the mat.

Hail damage to asphalt roof shingles timothy p. Many asphalt shingle manufacturers have issued technical bulletins about hail and granule loss stating that if granules are lost from the shingle due to hail the shingle has lost life. What does hail damage look like on asphalt shingle roofs. The authors have inspected thousands of asphalt shingle roofs and found that damage inspectors frequently mistake various shingle anomalies such as foot scuffs adhesive spots etc as hail damage.

Displacement of granules occurs when granules have been knocked off by the impact of hail stones hitting the roof. Marshall richard herzog and scott morrison. Granules removed by hail without visible asphalt exposure constitutes hail damage. Shingles with a granular texture such as those made from asphalt or composite materials may show granular loss that exposes the underlying felt random dents with no perceptible pattern and soft spots on the surface.