Your Most Common Questions About Solar Panel Installation on Roofs.

How Long Does a Roof Last Under Solar Panels? A well-installed roof with solar panels can last just as long—if not longer—than a roof without them. The panels actually act as an added protective layer, shielding your shingles from harsh weather. That said, if your roof is older than 15 years, we recommend a professional replacement before installing solar to avoid future complications.

As more homeowners in New Hampshire and Massachusetts look for ways to reduce energy costs and increase property value, solar panel installation on roofs has become a leading solution. At Revive Roofing and Siding LLC, we often hear the same questions from our customers before they move forward with solar projects. Below, we address the most common concerns with detailed, expert-backed answers to help you make an informed decision.


Why Install Solar Panels on Your Roof?

Installing solar panels allows you to harness renewable energy directly from your roof. By converting sunlight into electricity, you can reduce dependence on traditional energy sources, cut monthly utility bills, and potentially earn tax incentives. Beyond savings, solar panels also increase property value, making your home more attractive to buyers in the competitive New England market.


Is My Roof Suitable for Solar Panels?

Not every roof is equally suited for solar panel installation. Factors that determine suitability include:

  • Roof orientation and pitch: South-facing roofs in New Hampshire receive the most sunlight throughout the day.
  • Roof condition: If your roof is nearing the end of its lifespan, it’s wise to replace or repair it before adding solar panels.
  • Shading: Trees, chimneys, or nearby buildings can block sunlight and reduce panel efficiency.
  • Roofing materials: Asphalt shingles, metal, and certain flat roofs are typically easier to work with compared to slate or clay tiles.

At Revive Roofing and Siding, we inspect your roof to ensure it can handle the weight and positioning of solar panels before installation begins.


How Long Does a Roof Last Under Solar Panels?

A well-installed roof with solar panels can last just as long—if not longer—than a roof without them. The panels actually act as an added protective layer, shielding your shingles from harsh weather. That said, if your roof is older than 15 years, we recommend a professional replacement before installing solar to avoid future complications.


Do Solar Panels Damage Roofs?

When installed correctly, solar panels do not damage your roof. The key is professional installation that uses the right mounting systems and flashing methods to prevent leaks. Poor installation, however, can cause issues like water infiltration. That’s why partnering with an experienced roofing company like Revive Roofing and Siding is crucial.


How Much Does Solar Panel Installation Cost in NH?

The cost of solar installation depends on:

  • System size (measured in kilowatts).
  • Roof complexity (steep slopes or unusual layouts may require more labor).
  • Permits and inspections required in your local county or city.

On average, residential solar systems in New Hampshire range between $12,000 and $20,000 after incentives. The federal tax credit can cover up to 30% of installation costs, significantly lowering your upfront investment.


What Incentives Are Available in New Hampshire?

New Hampshire homeowners benefit from multiple solar incentives:

  • Federal Solar Investment Tax Credit (ITC) – 30% credit on installation costs.
  • Net metering – Earn credits for excess energy sent back to the grid.
  • State and local rebates – Depending on your municipality, rebates may apply for clean energy adoption.

Combining these programs can shorten your return on investment period to just a few years.


Can Solar Panels Withstand New England Weather?

Absolutely. Modern solar panels are built to endure heavy snow loads, ice, wind, and hail. In fact, panels are tested under extreme weather conditions and typically carry 20–25 year warranties. For New Hampshire homeowners, winter maintenance often means brushing off snow to maximize energy production.


How Long Does Solar Installation Take?

The timeline varies, but most residential solar projects follow these steps:

  1. Roof inspection and design – 1–2 weeks
  2. Permitting and approvals – 2–6 weeks
  3. Installation – 1–3 days
  4. Inspection and grid connection – 1–3 weeks

From start to finish, you can expect the process to take about 6–10 weeks, depending on permitting speed in your area.


What Happens If My Roof Needs Repairs After Installation?

If roof repairs are required after solar panels are installed, the panels can be temporarily removed and reinstalled. However, this adds cost and complexity. That’s why it’s best to ensure your roof is in excellent condition before going solar. At Revive Roofing and Siding, we handle both roof replacements and solar readiness preparation so homeowners avoid costly surprises.


Do Solar Panels Increase Property Value?

Yes. Studies show homes with solar panels sell for 4–6% more than comparable homes without them. Buyers value lower energy bills, long-term energy independence, and environmentally friendly features. In New Hampshire’s competitive housing market, solar-equipped homes stand out.


Are There Financing Options for Solar Installation?

Yes. Homeowners can choose from several financing models:

  • Cash purchase – Highest savings, no monthly payments.
  • Solar loans – Spread out payments with interest, but you still own the system.
  • Leasing or PPAs – Lower upfront costs, though you won’t own the panels.

Your choice depends on budget, long-term goals, and how long you plan to stay in your home.


Why Choose Revive Roofing and Siding for Solar-Ready Roofing?

As a trusted roofing company in Southern New Hampshire and the Massachusetts border towns, Revive Roofing and Siding ensures your roof is ready for solar. Our team:

  • Provides expert roof inspections tailored to solar installations.
  • Uses only code-compliant and manufacturer-approved methods.
  • Offers Owens Corning Platinum-level authority, giving you peace of mind.
  • Works directly with solar providers to guarantee a smooth installation.

A roof is your home’s first line of defense. With solar panels, it also becomes your power plant. Partnering with a company that understands both roofing and solar preparation ensures maximum efficiency and durability.


Final Thoughts

Installing solar panels on your roof is a long-term investment that delivers energy savings, property value increases, and environmental benefits. The key to success lies in preparing your roof properly, choosing qualified professionals, and understanding the incentives available in New Hampshire.

At Revive Roofing and Siding LLC, we stand ready to help you make your home both weatherproof and energy-efficient for decades to come.

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This article was written by

Keith Jordan

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