The short answer
Understanding Hail Size and Roof Impact
The size of hail is directly linked to its potential for damage. Small hail, less than one inch, often causes minimal issues, though it can bruise or dent softer roofing materials over time. Hail measuring one inch can crack asphalt shingles or dent metal panels, especially on older roofs. Larger stones carry more kinetic energy, making significant damage far more probable with each increasing quarter-inch of diameter.
Multiple factors influence whether a specific hailstone causes a leak. The angle of impact, the presence of protective granules on shingles, and the underlying roof deck condition all matter. A steeply pitched roof might deflect some impacts, while a flat section absorbs the full force. Wind-driven hail compounds the damage, as it strikes with greater velocity and can hit vulnerable edges.
Inspecting Your Roof After a Hail Storm
After any hail event, safely inspect your property from the ground using binoculars. Look for dark spots or bruises on shingles where granules have been knocked away. Check gutters and downspouts for an accumulation of granules, which signals shingle wear. Also, examine metal fixtures, vents, and flashing for new dents, as these are often the first places hail damage becomes visible.
Do not walk on a hail-damaged roof, as it can be slippery and the structure may be weakened. Instead, document what you see with clear photographs from multiple angles. Note the date of the storm and the approximate size of the hailstones you observed. This visual record is valuable for a professional inspection and for any discussions with your insurance company.
- Look for circular, dark bruises or dents on asphalt shingles.
- Check for cracks or punctures in wood shake or slate tiles.
- Inspect metal roofing, vents, and flashing for new dimples or dings.
- Examine gutters and the ground for a sudden buildup of roof granules.
- Look for damage to roof-mounted equipment like satellite dishes.
- Note any leaks or water stains appearing on ceilings inside your home.
When to Call for a Professional Inspection
If you suspect damage or see hail one inch or larger, contact local water damage pros for a roof inspection. They can safely assess the extent of the damage to your roofing system and the underlying deck. This inspection is crucial because some damage, like fractured matting under shingles, is not visible from the ground and can lead to leaks much later.
Common Types of Hail Damage to Roofs
Asphalt shingles commonly suffer granule loss, which exposes the underlying mat to sun and rain, accelerating wear. They can also develop fractures or bruises that compromise their waterproofing ability. Wood shingles may split, and the impact can loosen their fasteners. Synthetic or slate tiles might crack, creating direct pathways for water to enter the roof deck and the structure below.
Preventing Water Damage After Hail Impact
The primary risk from hail-damaged roofs is water intrusion. If you notice a leak, act quickly to minimize interior damage. Move furniture and belongings away from the wet area and place buckets to catch dripping water. You may need to tarp the damaged section of the roof temporarily to prevent further water entry until permanent repairs can be made.
Addressing roof damage promptly prevents secondary issues like rot, mold, and structural decay. Moisture trapped in attic insulation or wall cavities creates an environment for mold to grow. For any resulting interior water damage, local water damage pros can dry the structure properly. If mold is a concern, a mold assessment professional can determine if remediation is needed.
- Act quickly to stop active leaks with temporary measures like tarps.
- Protect interior belongings by moving them away from water entry points.
- Ensure proper attic ventilation to help dry any incidental moisture.
- Schedule roof repairs before the next rain event to prevent worsening damage.
- Consider a full roof inspection if your area frequently experiences severe hail.
- Keep records of all inspections and repairs for insurance purposes.
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Call Now (253) 785-9361Frequently asked questions
Can pea-sized hail damage a roof?
Pea-sized hail, under one inch, rarely causes immediate functional damage to a sound roof. However, it can contribute to cumulative granule loss on asphalt shingles over many storms, shortening the roof's lifespan. It may also damage very soft or aged roofing materials.
What should I do if my insurance denies my hail damage claim?
Review your policy's declarations page and the insurer's inspection report. You can request a re-inspection, sometimes with your own professional's report as evidence. If disagreements persist, you may consult a qualified attorney or your state's department of insurance for guidance on the dispute process.
How long after hail damage does a roof leak appear?
A leak can appear immediately if the hail punctures the roof membrane. More often, leaks develop weeks or months later as cracked shingles or compromised seals degrade. Water may travel along roof decking before dripping inside, making the leak's origin hard to find without an inspection.
More questions and answers
- What Does Hail Damage Look Like on a Roof?
- Can Hail Damage a Roof Without Leaking Right Away?
- Does Hail Damage Void a Roof Warranty?
- What Are Unique Storm Damage Risks for Flat-Roof Buildings?
- What Damage Does a Roof Leak Cause to Insulation?
- How Do Insurance Companies Inspect for Hail Damage?
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