How to Repair Granular Loss on Roof in CA

Granular loss on your roof is a common issue that many homeowners face, especially in regions with a variety of weather patterns, like California. Granules are the small, gritty particles on asphalt shingles that protect the shingles from UV damage, reduce heat buildup, and add durability. Over time, granules may fall off due to aging, weather exposure, or improper installation. If left untreated, this can lead to leaks, structural damage, and a reduction in energy efficiency. Here, we’ll guide you on how to repair granular loss on your roof in California, helping you extend the lifespan of your roofing and maintain its effectiveness.

Understanding Granular Loss: Causes and Signs

Granular loss occurs naturally as shingles age, but other factors can accelerate the process. Knowing what to look for and what may have caused granular loss can help you address it appropriately.

Causes of Granular Loss

1. Age and Wear: As shingles age, they naturally lose granules due to exposure to the sun, rain, and other elements. Most asphalt shingles are designed to last about 20-30 years, but this depends on the quality of the material and climate conditions.
2. Severe Weather: California’s weather varies greatly by region, from intense sun and heat in the south to rain and snow in the northern regions. Severe weather, like heavy rain, high winds, hail, and even the intense sun, can strip granules off your roof.
3. Poor Installation: If the shingles were improperly installed, they could be more prone to premature granular loss. Issues like misalignment or using too much adhesive can weaken shingles, causing them to lose granules quickly.
4. Foot Traffic: Walking on your roof, especially in hot weather, can cause granules to come loose. Frequent roof inspections, maintenance, or repairs done without care may lead to accelerated granule loss.
5. Manufacturing Defects: In rare cases, some shingles may come with defects from the manufacturer that make them more prone to granular loss. If you’re experiencing significant granular loss early on, consult the manufacturer as it may be covered under warranty.

Signs of Granular Loss

Granular loss is easy to spot if you know what to look for:

• Granules in Gutters: One of the most common signs is an accumulation of granules in your gutters or downspouts. Check your gutters regularly for granules after rain or windstorms.
• Bald Spots on Shingles: Bald spots or patches on shingles are another sign of granular loss. These areas may appear lighter in color or smoother than the surrounding shingles.
• Shiny Spots: If you see shiny patches on the roof, it may mean the asphalt layer beneath the granules is exposed, indicating significant granular loss.

How to Repair Granular Loss on Roof

If your roof is experiencing granular loss, there are a few repair options available depending on the severity. Here’s a step-by-step guide on how to repair granular loss effectively.

Step 1: Inspect the Roof

Begin by inspecting your roof to assess the extent of the granular loss. You can do this from the ground with binoculars, or, if you’re comfortable, climb up for a closer inspection. Look for bald spots, shiny patches, and loose granules around your gutters and downspouts. Document any areas with noticeable damage, as you may need this information if you decide to file an insurance claim or contact a roofing professional.

Step 2: Clean the Roof

Before making any repairs, clean your roof to remove debris, dirt, and loose granules. This will help you see the areas that need repair and improve the adhesion of any materials you’ll be using. Be careful not to use a pressure washer, as this can remove more granules. Instead, use a soft-bristled broom or a leaf blower to clear the roof gently.

Step 3: Apply a Roof Sealant

A roof sealant can protect the shingles and restore some of the lost granules. Roof sealants are available at most hardware stores and provide a protective layer over the shingles, preventing further granule loss and sealing minor cracks. When applying the sealant:

1. Ensure the roof is dry and clean.
2. Use a roller or brush to apply the sealant evenly.
3. Let the sealant dry completely before proceeding.

This step helps to reinforce the roof’s durability, especially in areas that experience heavy sunlight or rain, common in California’s climate.

Step 4: Use a Roof Repair Spray

A roof repair spray, specifically designed for asphalt shingles, can be applied over areas with significant granular loss. This spray acts like a glue, bonding loose granules back onto the shingles. Follow these tips for the best results:

1. Shake the spray can well and follow the manufacturer’s instructions.
2. Apply an even coat over the bald patches.
3. Allow the spray to dry for the recommended time before inspecting.

Roof repair spray can be an effective way to restore some of the lost granules, but it’s generally more suitable for small areas rather than widespread damage.

Step 5: Reattach or Replace Shingles

If the granular loss is too severe, reattaching or replacing shingles might be necessary. To reattach a shingle:

1. Carefully lift the shingle and apply a small amount of roofing adhesive underneath.
2. Press the shingle down and hold it in place for a few seconds.
3. Repeat the process with any other loose shingles.

If individual shingles are beyond repair due to extensive granule loss, they may need replacing. Be sure to choose shingles that match the rest of the roof in both color and style for a uniform look.

Step 6: Consider a Roof Coating

For roofs with extensive granular loss, a roof coating can be applied to cover and protect the surface. Roof coatings are available in reflective or waterproof formulas, providing additional protection against California’s intense sun and rain. When applying a roof coating:

1. Clean and dry the roof thoroughly.
2. Use a brush or roller to apply the coating evenly.
3. Allow the coating to dry according to the product’s instructions.

Roof coatings provide a durable, protective layer, but it’s important to note that they are not a substitute for a full roof replacement if your shingles are nearing the end of their lifespan.

Preventing Future Granular Loss

Repairing granular loss on your roof is essential, but prevention is equally important. Here are some preventative tips:

1. Schedule Regular Roof Inspections: Have a professional inspect your roof at least once a year, especially before and after California’s rainy season. Early detection can help prevent severe damage.
2. Maintain Your Gutters: Clean gutters allow rainwater to drain properly, preventing it from pooling and eroding shingles. Clear your gutters of debris regularly.
3. Trim Overhanging Branches: Overhanging branches can drop leaves and branches onto your roof, accelerating granule loss and increasing the risk of damage during storms.
4. Avoid Walking on the Roof: Foot traffic can weaken shingles and cause granular loss. If you need to inspect your roof, consider using binoculars or a ladder to reduce direct contact with shingles.
5. Apply Roof Treatments: A protective roof treatment, like a reflective coating, can help shield shingles from UV damage, extending their lifespan.

When to Call a Professional

While DIY repairs can help with minor granular loss, there are times when you should call a professional:

• Widespread Granular Loss: If a large portion of your roof has bald patches, a roofing contractor can assess the damage and suggest solutions, which may include a roof replacement.
• Roof Leaks or Water Damage: If you’re noticing leaks or water damage in your home, it could indicate severe shingle damage. This situation requires professional intervention to prevent further structural issues.
• Warranty Coverage: If your shingles are under warranty and you’re experiencing premature granular loss, contact the manufacturer or installer. They may cover repairs or replacements based on the warranty terms.

Conclusion

Granular loss on your roof can lead to serious issues if left unaddressed, but with the right approach, you can repair and prevent future damage. By understanding the causes and signs of granular loss, taking timely actions to repair minor issues, and following preventative maintenance, you can extend the life of your roof. Whether you’re facing the sun-soaked weather of Southern California or the rainy conditions in Northern California, these steps will help keep your roof in top shape, ensuring it protects your home effectively.

Need a Roofing Contractor in Lodi, CA?

Established in 2003, Gonzalez Roofing is a roofing and general contractor based in Lodi, California. We specialize in just about everything when it comes to roofing and general contracting including repairs, installations, maintenance, and gutter services for residential locations. With over 15 years of experience, we value providing quality services and high attention to detail. Contact us today for more information!