Roof Hail Damage: How To Identify It - Timberland Exteriors

DOES MY ROOF HAVE HAIL DAMAGE?

In doing a hail damage inspection of your roof our trained specialists will take into account your home as a whole and inspect the roofing, siding, gutters, and windows

What does hail damage to my roof look like?

Damage to items other than the roof is called collateral damage. The nature of collateral damage may give you information about the hail size and density that will help you better understand the damage you see on the roof. The most important type of collateral damage is elevation damage.

Elevation damage is damage to those parts of the home on the exterior walls, such as siding and trim, windows, doors, window well covers, and any other building components that can be damaged by hail.

Collateral damage on the roof is usually shown by the soft metals on the roof like roof vents and metal valleys

Hail Damaged on Roof Turtle Vent

Hail Damage to valley metal

Hail Damage to HVAC pipe caps are not a reliable source of collateral damage as many roofers will choose to not replace this when a new roof is installed.

HVAC Pipe Cap – Often times not replace by roofers and may show old damage from another storm

The following photos show the possible conditions of your roof and what hail damage looks like

Hail –Random hail hits to a roof shown above

Bruise – Created when a hailstone crushes the
mat material and can displace granules. Bruises
may cause premature deterioration and weathering,
eventually resulting in a hole in the shingle.

Blisters – Small bubbles or crater-like holes
generally. Blistering can result from the manufacturing
process or from roof ventilation issues and are not
caused by hail. Blisters can eventually cause
granule displacement.

Blisters often occur when excessive heat damages the roofing materials. … A discrepancy between attic and roof temperatures, caused by lack of insulation on the attic floor, creates the conditions that yield blisters. Moisture that gets underneath shingles also has the tendency to create blisters on your roof.

Thermal Cracking – Web-like pattern of cracks in surface of
shingles due to natural weathering. Cracking may also occur because of stress, shingle movement caused by high winds, and deck movement. Thermal tearing happens when extreme temperature changes cause the shingles to crack or split completely. … When undetected, the cracks or splits may let moisture in through the shingles and other layers of the roof.

Curling/Cupping – Both heat and moisture cause asphalt shingles to curl or cup. Venting the attic properly according to the latest building codes allows moisture to escape and lowers the temperature on the hottest summer days. Improper attic venting shortens the lifespan of shingles.

Flaking – Shingle Flaking is the deterioration of the roofing surface, which is usually caused by weathering of the shingle due to extreme age.

Footfall – Asphalt that softens at too high a temperature is brittle and more easily damaged by impact or flexing. Brittle shingles may also be broken more easily during installation. This shingle shows marring from a heel made when the asphalt was soft.

Manufacturers Defect – Shingle granule loss defects occur on organic-mat or fiberglass-mat asphalt roof shingles and, depending on the cause and extent of mineral granule loss, the loosening of this protective coating can spell the end of life of an asphalt shingle roof or the demise of a mineral-granule-coated roll roofing roof.

Nail Pop – Roof nail pops on a roof can be caused by a variety of reasons. During climate changes, expansion and contraction can cause to the nail to pop up. When this happens, the roof shingles become loose and start to lift. … Additionally, the roof installers could have used nails that were too short.

Nail Pop – An elevated nail that can push a
portion of the shingle off the roof plane. Over time,
this pop can cause a hole in the shingle.

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