Most people think of a solar installation as a one-time event: the panels go up, and that’s that. But the building codes that govern how solar systems must be engineered and secured aren’t frozen in time. In Colorado, they’ve changed in recent years, and those changes matter, particularly if your system was installed a while ago or is about to be reinstalled after roof work.

If you’re planning a roof replacement, a detach and reset, or a new installation, understanding how current wind load and building code requirements affect your system can save you from failed inspections, and, more importantly, protect your home when the next big storm hits.

Why Building Codes Changed in Colorado

Colorado has always been a demanding environment for anything mounted on a roof. High winds, intense hail, and dramatic weather swings put real stress on solar systems. But recent events sharpened the focus on how securely rooftop equipment needs to be attached.

Following the Marshall Fire, which was driven in part by extreme wind conditions, Colorado jurisdictions updated commercial building code requirements, including wind load standards that affect construction and rooftop systems like solar. The goal is straightforward: make sure what’s mounted on a roof stays there under severe wind, rather than becoming a hazard.

For solar specifically, this means the engineering behind how your panels are anchored, how many attachment points are used, and how the racking is spec’d, has to meet stricter, current standards.

What “Wind Load” Actually Means for Your Solar

Wind load is the force that wind exerts on a structure. For a rooftop solar array, high winds create both downward pressure and, crucially, uplift, the force that tries to peel the panels off the roof like a giant kite.

A properly engineered system resists that uplift through the right combination of:

• Attachment points — how many places the racking is anchored to the roof structure
• Mounting hardware — rated to handle the calculated loads for your location
• Racking design — engineered for the specific wind zone your home sits in
• Proper anchoring into structural members, not just the roof deck

When wind load requirements increase, a system that was compliant years ago may no longer meet current code. That’s not a knock on the original installer, it’s simply that the standard moved.

Why This Matters If Your System Is a Few Years Old

Here’s the practical takeaway for existing solar owners: if your system was installed several years ago and you’re now having it reinstalled, the reinstall may need to meet today’s stricter requirements, not the ones that applied originally.

This most often comes up during a detach and reset, when panels are removed for a roof replacement or repair and then reinstalled. A reinstall is generally expected to bring the system up to current code. In practice that can mean:

• Additional or relocated attachment points
• Updated mounting hardware rated for current wind loads
• Racking adjustments to meet today’s engineering standards
• Permitting and inspection under current requirements

A solar company that only knows how to bolt panels back exactly where they were may hand you a system that fails inspection, or worse, one that’s under-secured for Colorado’s winds. A specialist who works with current code reinstalls it right the first time.

Permitting and Inspection

Solar work in Colorado typically requires permits and inspection, and the exact requirements vary by jurisdiction. Front Range municipalities and counties each have their own building departments and can interpret and enforce code differently.

This is one of the biggest advantages of hiring a local, Colorado-based solar company. A contractor who works across the Front Range knows:

• Which permits your specific jurisdiction requires
• How local building departments interpret current wind load standards
• How to pass inspection the first time without costly re-work
• How to keep your project fully compliant and documented

An out-of-state or non-specialist crew is far more likely to stumble on these local details.

Why Code Compliance Protects You

It’s tempting to view code requirements as red tape, but for rooftop solar in Colorado they’re genuinely protecting your investment and your home. A system engineered and installed to current wind load standards:

• Stays put in severe wind, reducing the risk of panels lifting or detaching
• Protects your roof from damage caused by an under-secured array
• Keeps warranties intact, since improper mounting can void coverage
• Passes inspection cleanly, avoiding delays and re-work
• Holds its value, which matters if you ever sell the home

Cutting corners on mounting to save a little on labor is a poor trade in a state where a single windstorm can test every attachment point on your roof.

The Bottom Line

Colorado’s building codes have evolved, and wind load requirements are stricter than they were a few years ago. Whether you’re installing new solar or having an existing system reinstalled after roof work, meeting current standards isn’t just about passing inspection, it’s about making sure your array stays secure through Colorado’s toughest weather.

If you’re planning a new installation, a roof replacement, or a detach and reset and want it done to current code, reach out for a free assessment. As a Colorado-owned company with decades of combined solar and roofing expertise, we engineer and install every system to today’s standards, so it’s secure, compliant, and built for Colorado.

Related reading: our complete guide to solar panel removal and reinstallation in Colorado, and Do You Need to Remove Solar Panels for a Roof Replacement?

The short answer is yes. Rooftop HVAC and solar coexist on commercial buildings across the Front Range every day. It takes thoughtful design, but a cluttered roof rarely rules out a strong solar system. Here’s how it actually works.

Yes, Solar and HVAC Can Share a Roof

Solar panels and rooftop mechanical equipment are not an either/or proposition. On flat commercial roofs, which is what most Denver offices, warehouses, retail centers, and multifamily buildings have, panels are typically mounted on a ballasted or tilted racking system that sits above the roof membrane. That gives a designer flexibility to route arrays around obstructions rather than through them.

The goal isn’t to cover every square foot of roof. It’s to fit the largest, most productive array possible while keeping every unit accessible and every panel out of the shade. A good commercial solar design treats HVAC units as fixed features to design around, the same way it accounts for parapets, skylights, and drains.

What HVAC Placement Actually Affects

Rooftop equipment influences a solar design in three main ways.

Usable area. Every unit, curb, and duct run takes up space that can’t hold panels. A roof that looks big can lose a surprising amount of capacity to mechanical equipment and the clearances around it. This is why a site assessment measures usable roof area, not total square footage.

Shading. This is the one that matters most for production. A tall packaged rooftop unit or an exhaust stack casts a shadow that moves across the roof through the day and shifts with the seasons, sitting longer and lower in Denver’s winter months. A panel shaded for even part of the day produces less, and depending on how the system is wired, shading on a few panels can drag down a whole string. Designers model these shadows across the full year and keep panels out of the problem zones.

Access and clearance. HVAC units need to be serviced. Fire codes and equipment manufacturers require clear pathways and working room around each unit, and Denver’s permitting authority enforces setback and access requirements for rooftop arrays. Panels can’t box in a rooftop unit or block a technician’s path to it.

How a Good Design Works Around the Clutter

An experienced installer has several tools for turning a busy roof into a productive one.

They map every obstruction first. Before a single panel is placed on the plan, the design captures the exact location and height of every unit, vent, and curb, then models the shading each one throws throughout the year.

They lay out arrays in the open zones. Panels are grouped into the clear areas of the roof and oriented for maximum production, with intentional gaps preserved for equipment access and code-required pathways.

They use smart electronics to protect production. Module-level electronics like microinverters or power optimizers let each panel perform independently, so partial shade on one or two modules doesn’t drag down its neighbors. On a roof with unavoidable shadows, this can meaningfully protect your output.

They plan around your equipment’s lifespan. If a rooftop unit is near the end of its service life, it’s often smarter to replace it before the array goes in, so a future swap doesn’t mean working around or temporarily removing panels.

Plan HVAC and Solar Together, Not Separately

The most common and most expensive mistake is treating solar and HVAC as unrelated projects. If you install a large array and then need to replace a rooftop unit two years later, crews may have to detach and reset nearby panels to get the old unit out and the new one in. That’s avoidable cost and downtime.

Before you commit to a layout, it’s worth asking: which rooftop units are nearing replacement? Are any upgrades or additions planned? Is the roof itself due for work in the next few years? Coordinating solar with your mechanical and roofing timelines up front saves money and headaches later. If your roof is also nearing replacement, our guide to removing and reinstalling solar panels for roof work covers how detach and reset services keep that transition smooth.

What About the Roof Itself?

A crowded roof is often an older roof, and it’s worth confirming the membrane has enough life left before adding a 25-plus-year solar asset on top of it. Solar racking is designed to distribute weight and protect the roof, but the underlying structure and waterproofing still need to be sound. A proper commercial assessment looks at roof age, condition, and load capacity alongside the solar layout. Not sure whether your building is a strong candidate overall? Our overview of what makes a commercial building a good fit for solar in Denver walks through the full checklist.

The Bottom Line

Rooftop HVAC units make a solar design more involved, but they rarely make it impossible. With careful shading analysis, code-compliant access planning, and smart panel-level electronics, a busy commercial roof can still host a system that meaningfully cuts your energy costs and supports compliance with programs like Energize Denver.

The key is working with a team that understands both solar and roofing, and that plans your array around your building’s real-world constraints from day one.

Vanguard Solar Services designs and installs commercial solar systems across Colorado, and our team brings decades of combined solar and roofing expertise to every rooftop. Schedule a consultation to see what your roof can do.

Related reading: How Solar Helps Meet Energize Denver Requirements and Is Your Commercial Building a Good Fit for Solar in Denver?

Colorado’s Front Range sits squarely in “Hail Alley,” one of the most hail-prone regions in the United States. Every season brings storms capable of denting cars, shredding roofs, and, yes, damaging solar panels. If you’ve got solar and a big storm just rolled through, you’re probably wondering whether your system took a hit and what you should do about it.

The good news: modern solar panels are built tough and often survive hail that wrecks the roof around them. The important part is knowing how to check, what to do first, and how to get any damage properly documented and repaired. Here’s your step-by-step guide.

Are Solar Panels Actually Damaged by Hail?

Most quality solar panels are tested to withstand hail up to about one inch in diameter striking at high speed, and they hold up remarkably well in typical storms. But Colorado isn’t a typical-storm state. When hail reaches golf-ball or baseball size, even well-built panels can crack, shatter, or suffer damage you can’t see from the ground.

There are two kinds of hail damage to watch for:

• Visible damage — cracked or shattered glass, obvious dents, or spidering across the panel surface.
• Hidden damage (micro-cracks) — tiny fractures in the cells that don’t show up to the naked eye but reduce output and worsen over time. This is the sneaky one, because your system keeps running while quietly underproducing.

Because hidden damage is invisible and progressive, a storm that “looks fine” from the driveway can still have compromised your system. That’s why proper inspection matters.

What to Do Right After a Hailstorm

If a significant hailstorm hits, take these steps in order:

1. Stay off the roof

Don’t climb up to inspect panels yourself. Wet or damaged roofs are dangerous, and a live solar array adds electrical risk. Leave the up-close inspection to professionals.

2. Do a ground-level check

From a safe vantage point, look for obvious signs: shattered or cracked panels, visibly dented roofing, downed branches on the array, or debris. Take photos of anything you can see.

3. Check your system’s production

Log into your solar monitoring app. A sudden, unexplained drop in production after a storm is a red flag that something was damaged, even if nothing looks wrong from the ground.

4. Document everything

Photograph your panels, roof, and any other property damage. Note the date and time of the storm. This documentation is valuable for an insurance claim.

5. Call a solar professional for an inspection

A qualified solar company can safely inspect the panels up close, test for hidden micro-cracks and output loss, and give you a clear picture of what’s actually damaged.

Solar Hail Damage and Your Insurance

Here’s something many homeowners don’t realize: solar panels are typically covered under your homeowner’s insurance policy, much like your roof. If hail damages your panels, the repair or replacement is often a covered claim.

And here’s the connection to your roof: when a storm damages both your roof and your solar, the panels usually have to be removed so the roof can be replaced anyway. That removal and reinstallation, known as detach and reset, is frequently part of the same insurance claim, since the panels can’t stay on during a covered roof replacement.

A few tips for the insurance process:

• Document before you touch anything. Photos and monitoring data strengthen your claim.
• Get a professional solar inspection. An expert assessment carries weight and catches damage an adjuster might miss, especially hidden micro-cracks.
• Work with a company that understands claims. A solar contractor experienced with insurance work can document the damage and scope clearly, which helps your claim go smoothly.

Coverage and deductibles vary by policy, so confirm the specifics with your insurer. But don’t assume damaged panels aren’t covered, they often are.

Why You Need a Solar Specialist, Not Just a Roofer

After a big Colorado hailstorm, roofing crews are everywhere, and many will offer to handle “the whole thing,” solar included. Be careful here.

Panels are electrical equipment. Removing, inspecting, and reinstalling them safely requires solar-specific training, not just roofing experience.

Hidden damage needs real testing. Spotting micro-cracks and verifying output requires the right tools and know-how. A roofer glancing at panels can’t tell you whether cells are compromised.

Warranties are on the line. Most manufacturers require qualified personnel to handle the equipment. The wrong crew can void warranties worth tens of thousands of dollars.

Reinstalls must meet current code. In Colorado, wind load requirements changed following the Marshall Fire. A specialist reinstalls your system to today’s standards, not the ones from when it was originally installed.

A dedicated solar company can inspect for both visible and hidden damage, coordinate with roofers if the roof also needs work, document everything for your insurance claim, and reinstall your system correctly and to current code.

Don’t Wait to Get It Checked

Hail damage doesn’t fix itself, and hidden micro-cracks only get worse. The longer a compromised system runs, the more production you lose, and waiting too long can complicate an insurance claim. If a serious storm has hit your area, the smart move is a professional inspection sooner rather than later.

If your solar system may have taken hail damage, reach out for a free assessment. As a Colorado-owned company with decades of combined solar and roofing expertise, we inspect for both visible and hidden damage, handle the insurance documentation, and get your system safely back to full production.

Related reading: Do You Need to Remove Solar Panels for a Roof Replacement? and our complete guide to solar panel removal and reinstallation in Colorado.

You’ve got solar panels, and your roof needs replacing. Maybe it’s aging out, maybe a hailstorm did the deciding for you. Either way, you’re now facing a question most solar owners don’t think about until it lands on their plate: what happens to the panels?

The short answer is that yes, in nearly every case your solar panels must be removed before the roof can be replaced, then reinstalled afterward. But how that happens, and who does it, makes a big difference to your warranty, your roof’s longevity, and your energy production. Here’s what you need to know.

Why the Panels Have to Come Off

Your solar array doesn’t just sit on top of your roof, it’s bolted through it. The mounting hardware penetrates the roof deck at dozens of points, and the panels cover a large portion of the surface. A roof replacement means tearing off the old shingles and underlayment down to the deck and starting fresh.

There’s no way to do that with panels in place. Roofers can’t work around them, and trying to leave old flashing and penetrations in place under a brand-new roof is exactly how leaks begin. To do the job right, the panels and racking have to be fully detached, the roof replaced on a clean surface, and the system reinstalled with fresh flashing and sealant at every penetration.

This process has a name in the industry: detach and reset, sometimes called a solar removal and reinstallation, or D&R for short.

The Right Order of Operations

A roof replacement with solar is really two jobs that have to be carefully coordinated. Done in the right sequence, it’s smooth. Done poorly, you end up with scheduling gaps that leave your roof exposed or your system offline longer than necessary.

Here’s how it should go:

1. Detach — A solar specialist powers down the system, disconnects it safely, and removes the panels, racking, and hardware, labeling and storing components so nothing is damaged or lost.
2. Re-roof — The roofing crew tears off and replaces the roof on a clean, unobstructed surface.
3. Reinstall — The solar specialist remounts the array, re-flashes and seals every penetration, and reconnects the system.
4. Test — The system is powered back up and confirmed to be producing at full output.

The tricky part is timing steps 1 through 3 so the roof isn’t left open to the weather between trades. This is a big reason homeowners increasingly prefer a company that understands both the roofing and the solar sides and can schedule the whole thing as one coordinated project.

Can My Roofer Just Handle the Panels?

This is the mistake that costs Colorado homeowners the most, so it’s worth being blunt: letting a general roofing crew remove and reinstall your solar is a gamble you don’t want to take. Here’s why.

It can void your warranties. Most solar panel and inverter manufacturers require qualified personnel to handle the equipment. If an untrained crew moves your panels, you can void warranties on hardware worth tens of thousands of dollars.

It’s a live electrical system. Your array carries DC current and must be disconnected and reconnected correctly and to current code. This isn’t roofing work, it’s electrical work, and mistakes are both a safety hazard and a failed-inspection risk.

Roof penetrations need expert sealing. Every mount point is a hole through your new roof. Re-flashing and sealing those correctly sits right at the intersection of roofing and solar knowledge, and it’s the single most common place shortcuts cause water damage down the line.

Your production can quietly suffer. Panels reconnected incorrectly, or remounted at the wrong angle or with pinched wiring, can underproduce for years without an obvious sign, other than higher utility bills.

A dedicated solar service company protects your warranties, handles the electrical side properly, and seals the roof to a standard that keeps water out for the life of the new roof.

What Colorado Homeowners Should Know

If you’re in Colorado, a couple of local factors make hiring a specialist even more important.

Building codes have changed. Following the Marshall Fire, Colorado updated wind load requirements that affect how solar systems must be engineered and secured. If your system was installed years ago, a code-compliant reinstall may require different or additional mounting than you originally had. A local specialist reinstalls to today’s standards, not the ones that applied when your panels first went up.

Hail makes reinstall inspections valuable. Since a roof replacement in Colorado is often triggered by hail in the first place, the detach is a smart moment to inspect the panels themselves for micro-cracks or marginal components before they go back up and the next storm rolls through.

Will Insurance Cover the Detach and Reset?

If your roof replacement is the result of covered storm or hail damage, the cost of removing and reinstalling your solar panels is often included in the insurance claim, since the panels have to come off for the covered repair to happen. Coverage varies by policy and situation, so confirm the details with your insurer, and work with a solar company that can document the D&R scope clearly for your claim.

The Bottom Line

If you have solar and your roof needs replacing, plan on the panels coming off and going back on. That’s normal and expected. What matters is that the detach and reset is handled by a qualified solar specialist who protects your warranties, reinstalls to current Colorado code, and re-seals your roof correctly, so your brand-new roof stays leak-free and your system keeps producing for years.

If you’ve got a roof replacement on the horizon, reach out for a free assessment. As a Colorado-owned company with decades of combined solar and roofing expertise, we coordinate the whole process so your roof and your solar are both done right.

Want the full picture? Read our complete guide to solar panel removal and reinstallation in Colorado.

If you have solar panels and need a new roof, storm repairs, or a major renovation, you’ve probably run into a frustrating problem: your panels are in the way, and the company that installed them may no longer be around to move them. That’s where solar panel removal and reinstallation, known in the industry as detach and reset (D&R), comes in.

It sounds simple: take the panels off, do the roof work, put them back. In practice, it’s a specialized job that touches your roof, your electrical system, and your solar warranty all at once. Done wrong, it can void warranties, cause leaks, or leave your system underperforming for years. Done right, it protects your investment and gets your system producing again as if nothing happened.

This guide walks you through when detach and reset is needed, how the process actually works, what it costs in Colorado, and why it’s worth hiring a solar specialist rather than a general roofer.

What Is Solar Panel Detach and Reset?

Detach and reset is the professional removal of your solar panels and mounting hardware, followed by their reinstallation after other work is complete. A proper D&R includes:

• Safely powering down and disconnecting the system
• Removing the panels, racking, and mounting hardware
• Labeling and storing components so nothing is lost or damaged
• Reinstalling everything after the roof or structural work is finished
• Re-sealing every roof penetration to prevent leaks
• Testing the system and confirming it’s producing at full capacity

It is not just “unscrewing panels.” Your solar array is a live electrical system bolted through your roof. Handling it correctly requires knowledge of both the electrical side and the roofing side, which is exactly why it falls into a gray area that trips up a lot of homeowners.

When Do You Need Solar Panel Removal and Reinstallation?

There are a handful of common situations where Colorado homeowners need a detach and reset:

Roof Replacement

This is the most common reason. Asphalt shingle roofs typically last 15 to 25 years, and many solar systems installed a decade ago are now sitting on roofs that are due for replacement. You cannot re-roof underneath panels, so they have to come off and go back on. (More on this below, because it’s the single most-asked question we get.)

Hail and Storm Damage

Colorado’s Front Range sees some of the most intense hail in the country. When a storm damages your roof, insurance often covers a full roof replacement, and the solar panels have to be detached so the roofers can work. In some cases the panels themselves are damaged and need repair or replacement at the same time.

Home Renovations and Additions

Adding a second story, changing your roofline, installing skylights, or expanding your home may require temporarily removing panels that sit in the work zone.

Selling or Buying a Home

A roof or system issue flagged during a home sale inspection sometimes requires panels to be removed so repairs can be made before closing.

Relocating Your System

Occasionally homeowners want panels moved to a better-producing section of the roof, or removed entirely for a project and reinstalled elsewhere.

Do You Need to Remove Solar Panels for a Roof Replacement?

Short answer: yes, almost always.

Roofers cannot install a new roof underneath your solar panels. The panels, the racking, and every roof penetration point sit directly on the surface that needs to be torn off and replaced. Trying to work around them isn’t just impractical, it leaves old flashing and penetrations in place under a brand-new roof, which is exactly where leaks start.

The right sequence is:

1. Solar specialist detaches and safely stores the panels and racking
2. Roofer completes the full roof replacement on a clean surface
3. Solar specialist reinstalls the array with new flashing and fresh sealant at every penetration
4. System is tested and confirmed producing at full output

Coordinating the two trades is where things get complicated, which is why many homeowners prefer a company that understands both roofing and solar and can schedule the work so the roof is never left exposed.

Why You Shouldn’t Let Just Any Roofer Move Your Panels

When a roofing crew offers to “handle the solar” as part of the job, it’s tempting to say yes. Resist it. Here’s why this decision matters more than most homeowners realize.

Warranty risk. Most solar panel and inverter manufacturers require that qualified personnel handle the equipment. If an unqualified crew removes and reinstalls your panels, you can void the manufacturer warranty on hardware worth tens of thousands of dollars.

Electrical safety and code. Your array is a live DC electrical system. Disconnecting and reconnecting it correctly, and to current code, requires proper training. Mistakes here are both a safety hazard and a failed-inspection waiting to happen.

Roof penetration and leaks. Every mount point is a hole through your roof that must be re-flashed and sealed properly on reinstall. This is the intersection of roofing and solar expertise, and it’s the number one place shortcuts cause expensive water damage later.

Production losses. Panels reconnected incorrectly, or reinstalled at the wrong angle or with damaged wiring, can quietly underproduce for years. You often won’t notice until your utility bills creep up.

A dedicated solar service company handles the panels correctly, protects your warranties, and re-seals the roof to a standard that keeps water out.

Colorado-Specific Considerations

Reinstalling solar in Colorado isn’t the same as reinstalling it elsewhere, and this is where local expertise really pays off.

Wind load and building codes have changed. Following the Marshall Fire, Colorado updated wind load requirements affecting how solar systems must be engineered and secured. A reinstall done to today’s code may require different mounting than your original installation from years ago. A local specialist reinstalls to current requirements, not outdated ones.

Hail resilience. Because Front Range hail is a when-not-if event, how your system is reinstalled and inspected for existing damage matters. A thorough D&R is a good moment to catch micro-cracks or marginal components before the next storm finds them.

Local permitting and inspection. Reinstalls often require permits and inspection depending on the jurisdiction. A Colorado-based solar company knows the local authorities and keeps your project compliant.

How Much Does Solar Panel Detach and Reset Cost in Colorado?

Cost depends on several factors, so be wary of anyone who quotes a firm price sight unseen. The main drivers are:

• System size — the number of panels is the biggest factor
• Roof complexity — steep pitches, multiple planes, and difficult access add labor
• Racking type — some mounting systems are more labor-intensive to remove and reset
• Condition of existing hardware — aging racking or wiring may need replacement
• Coordination needs — timing around a roofer or other trades

Because these vary so much home to home, the honest answer is that a proper on-site assessment is the only way to get an accurate number. Beware of quotes that seem unusually low, since they often skip the re-sealing and code compliance steps that protect you long term.

What to Look for in a Detach and Reset Company

If you’re hiring for a D&R, look for:

• Solar-specific experience, not a roofer moonlighting on solar
• Roofing knowledge too, so roof penetrations are re-sealed correctly
• Proper licensing and insurance for electrical solar work
• A local presence that understands Colorado code and can service you long-term
• Clear communication about scheduling around your roof or renovation work
• A written scope covering removal, storage, reinstallation, sealing, and testing

Protect Your Solar Investment

Your solar system is one of the larger investments in your home, and detach and reset is the service that protects it through every roof replacement, storm, and renovation over its lifetime. Handled by a specialist, it’s a straightforward project that gets your panels back to producing clean energy safely and to current code. Handled by the wrong crew, it’s a source of voided warranties, leaks, and lost production.

If you have a roof replacement, hail repair, or renovation coming up and need your panels safely removed and reinstalled, reach out for a free assessment. As a Colorado-owned solar company with decades of combined solar and roofing expertise, we handle detach and reset the right way, protecting your warranty, your roof, and your energy production.

Related Reading

• Do You Need to Remove Solar Panels for a Roof Replacement?
• Solar Hail Damage in Colorado: What to Do After a Storm
• How Colorado’s Wind Load & Building Code Changes Affect Solar Installations
• Buying or Selling a Home with Solar Panels in Colorado? Get an Inspection First