Laying a Second Layer Over Existing Asphalt Shingles Roof

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3. Pre-Installation Inspection and Preparation

Before installing a second layer of shingles, Ernie’s Roofing performs a comprehensive inspection, which includes:

• Checking for damaged or rotted decking.
• Assessing the condition of the existing shingles.
• Ensuring compliance with Denver’s building codes.
• Measuring the roof’s weight-bearing capacity.

Example:

During a recent project in Denver, we discovered significant rot in the fascia boards and starter boards. By replacing these components beforehand, we ensured a stable foundation for the new layer of shingles.

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4. The Ernie’s Roofing Approach

Unlike some contractors who skip essential steps to save time, we prioritize quality and durability. Here’s how we stand out:

• Flashings Replacement: We remove old, rusted flashings and install new ones to protect against leaks.
• Ridge Vent Installation: Ventilation is crucial for preventing moisture buildup and prolonging the roof’s lifespan.
• Full Cleanup: We meticulously clean the roof before installation, removing debris and ensuring a smooth surface.

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5. Step-by-Step Process for Laying a Second Layer

Step 1: Remove Old Flashings and Damaged Components

All old flashings, rusted caps, and damaged wood are removed to create a clean working surface.

Step 2: Replace Edge Metal

New edge metal is installed to provide a secure boundary and prevent water infiltration.

Step 3: Install Underlayment

A layer of 30-pound felt is applied over the existing shingles, particularly in valleys, to add an extra barrier of protection.

Step 4: Secure Ridge Vents

Ridge vents are installed to promote airflow, cutting about 1.5 inches on each side of the ridge.

Step 5: Lay the New Shingles

New asphalt shingles are aligned and installed, ensuring proper overlap and sealing.

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6. Replacing Flashings and Damaged Wood

Importance of Replacing Flashings

Old flashings are often rusted or worn out, leading to leaks and water damage. At Ernie’s Roofing, we replace all flashings with high-quality materials to ensure long-term performance.

Real-Life Example:

A homeowner in Northglenn, CO, called us to recover their roof. During the inspection, we found rusted flashings that could have led to leaks. By replacing them, we delivered a roof system designed to last for decades.

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7. Installing Ridge Vents for Ventilation

Proper ventilation is key to preventing moisture buildup and prolonging the life of your roof. We cut precise gaps for ridge vents and ensure they are securely installed.

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8. Adhering to Code Standards

In Denver, building codes require exposed wood to be primed or painted to prevent moisture damage. At Ernie’s Roofing, we go above and beyond to follow these standards, even when inspections aren’t required.

Why It Matters:

Skipping these steps may save time, but it can lead to issues down the line. For example, unprimed wood can absorb moisture, leading to rot and structural instability.

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9. Avoiding Common Mistakes

Mistake 1: Ignoring Flashings

Some contractors reuse old flashings, applying silicone or mastic as a temporary fix. This can lead to future problems.

Mistake 2: Cutting Corners

Failing to replace damaged components or adhere to code standards results in callbacks and wasted time.

Mistake 3: Poor Surface Preparation

Skipping the cleaning process can lead to an uneven surface, causing buckling and premature wear.

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10. FAQs About Asphalt Shingle Roof Recovering

Q1: Is it always possible to add a second layer of shingles?

Not always. The roof’s condition, structural capacity, and local codes must allow for it.

Q2: How long does a second layer last?

A second layer typically lasts 15-20 years, depending on maintenance and weather conditions.

Q3: Will a second layer improve insulation?

Yes, the added layer can enhance thermal insulation slightly.

Q4: What’s the cost difference between a second layer and a full replacement?

Recovering is more affordable due to reduced labor and disposal costs.

Q5: Can all damaged wood be replaced during recovering?

Yes, at Ernie’s Roofing, we inspect and replace all damaged components before installation.

Q6: How does adding a second layer affect the roof’s weight?

It adds weight, so the roof’s structure must be able to support it.

Q7: Are permits required for roof recovering in Denver?

Yes, building permits are often required, and we handle all necessary documentation.

Q8: Does adding a second layer affect ventilation?

Proper ventilation must be ensured with ridge vents or similar solutions.

Q9: Can I install a second layer myself?

We recommend hiring professionals like Ernie’s Roofing to avoid mistakes and ensure quality.

Q10: How do I choose the right contractor?

Look for licensed, experienced professionals like Ernie’s Roofing with a strong local reputation.

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Conclusion

Laying a second layer over existing asphalt shingles is a cost-effective solution for homeowners looking to extend the life of their roof. However, it requires careful preparation, quality materials, and professional expertise. At Ernie’s Roofing, we’ve been serving Denver and the surrounding areas since 1978, delivering reliable roofing solutions tailored to each homeowner’s needs.

If you’re considering roof recovering, don’t hesitate to contact us at 720-346-ROOF or visit our website at https://erniesgutter.com for a free consultation. Let our decades of experience ensure your roof stands strong for years to come!