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Commercial Sun Tunnel Installation

Houston’s flat commercial roofs lose daylight fast once a building goes more than one bay deep.

Achilles Roofing & Exterior installs sealed, wind-rated tubular sun tunnels on TPO, EPDM, modified bitumen and metal commercial roofs — cutting daytime lighting hours without opening up a full skylight well.

Watch How We Deliver Quality

Signs Your Building Would Benefit From a Commercial Sun Tunnel Installation

Interior Zones Stay Lit All Day

Break rooms, back-of-house retail floors and interior warehouse aisles more than 20 feet from an exterior wall usually run overhead lighting on every shift, even at noon.

Daytime Lighting Load Is Climbing

If your utility bill shows steady daytime kWh draw across a large flat-roof footprint, that load is frequently fixtures compensating for zero natural light reaching the floor.

An Old Skylight Well Is Leaking or Fogging

Built-up curb skylights on aging Houston commercial roofs commonly fail at the curb-to-membrane seam long before the glazing does — a sealed tunnel dome avoids that seam entirely.

How Our Commercial Sun Tunnel Installation Works

Fitting a Sun Tunnel Into a Membrane Roof Without Opening a Full Skylight Well

✔ Roof-plane survey to route the reflective tube around joists, HVAC curbs and duct runs before any cut is made
✔ Membrane-matched flashing — TPO to TPO, EPDM to EPDM — welded or adhered per the manufacturer’s detail, not a universal boot
✔ Impact-rated polycarbonate dome sized for Houston’s hail and wind-driven debris exposure

We treat the tunnel penetration the same way we treat any commercial roof penetration: sealed first to the membrane manufacturer’s spec, then finished for daylight performance. That order keeps the roof’s existing warranty intact instead of voiding it at a single new curb.

Wind & Water Performance

Sealing a Roof Penetration for Gulf Coast Wind and Rain, Not Just Sunlight

✅ Flashing kits rated for the wind-uplift zone Houston’s building code assigns to low-slope commercial roofs
✅ Dome and collar seams tested against wind-driven rain, the failure mode that shows up first during tropical storm season
✅ Documentation package your property insurer can reference after a named storm inspection

Before You Approve a Commercial Sun Tunnel Installation

What a Commercial Property Manager Should Confirm Before Sun Tunnels Go on the Roof

✔ Roof access and installation crews licensed, bonded and insured for commercial low-slope roofing work in Texas
✔ A written scope showing exact tube run length, since light output drops as the run gets longer or adds elbows
✔ A workmanship warranty on the flashing and roof penetration, separate from the tunnel manufacturer’s product warranty

A tunnel installed by a roofer who works exclusively on the roofing side — not a skylight subcontractor unfamiliar with your membrane type — is the detail that determines whether the penetration holds up through a Houston summer of thermal cycling.

Common Questions About: Commercial Sun Tunnel Installation

How much natural light does a commercial sun tunnel actually add compared to a standard skylight?

A single 10–14 inch tubular sun tunnel added during a commercial sun tunnel installation typically illuminates a 200–300 square foot interior area on a clear Houston day, comparable to several hundred watts of fixture output during daylight hours. Coverage depends on tube diameter, run length and how many bends the tube makes getting from the roof deck to the ceiling diffuser.

Will a commercial sun tunnel installation void my roof membrane’s warranty?

Only if the penetration isn’t flashed to the membrane manufacturer’s approved detail. We match flashing methods to the membrane already on the roof — TPO to TPO, EPDM to EPDM — and use manufacturer-approved boots so the new penetration doesn’t create a warranty exclusion around it.

Can a commercial sun tunnel installation be done on a completely flat roof, or do they need slope?

Flat and low-slope roofs are the most common application we install on in Houston. Flashing kits designed for low-slope membranes handle standing water differently than steep-slope shingle kits, so the flashing detail — not the tunnel itself — is what changes.

Do sun tunnels make interior spaces hotter during Houston summers?

An uncoated dome can add solar heat gain, but a diffuser lens rated to block infrared transmission limits most of that added heat while still passing visible light. We spec heat-blocking lenses as standard on south- and west-facing commercial installs in the Houston climate.

How long does a commercial sun tunnel installation take?

A single-tunnel install on an accessible flat roof typically takes 3–5 hours including flashing and interior diffuser trim-out. Multi-unit commercial installs across a warehouse or retail floor plan are usually scheduled in batches to minimize the number of separate roof openings held open at once.

Does installing a sun tunnel require electrical work or a permit?

A passive sun tunnel has no wiring, so no electrical permit applies. A roof-penetration permit may be required depending on the local jurisdiction’s adoption of the International Building Code; we confirm and pull permits where required before work begins.

How much can a business realistically save on lighting costs with a commercial sun tunnel installation?

Savings scale with how many daytime hours the space currently runs overhead lighting and how many tunnels are installed relative to square footage. The U.S. Department of Energy’s daylighting research is a useful independent benchmark for estimating reductions in daytime lighting load before committing to a tunnel count.

What maintenance does a commercial sun tunnel installation need in a humid, storm-prone climate?

We recommend a dome inspection and wipe-down during routine roof maintenance visits, plus a flashing check after any named tropical storm or significant hail event — the flashing seam is the component most likely to need attention over time, not the dome or tube itself.

Can sun tunnels cause condensation inside the building?

Condensation can form inside a tube if the diffuser isn’t properly sealed against interior humidity, which is common in Houston’s climate. We install a sealed interior diffuser ring specifically to keep conditioned interior air from meeting the cooler tube surface.

How far can a commercial sun tunnel installation travel through the roof deck to reach the ceiling below?

Rigid tube runs perform best up to roughly 10–15 feet; flexible tube can route around obstructions like ductwork or trusses but loses more light per foot of bend. On commercial buildings with deep truss cavities, we survey the roof-to-ceiling distance before quoting the run.

What’s the expected lifespan of a commercial sun tunnel dome given Houston’s UV exposure?

Impact-rated polycarbonate domes rated for UV exposure commonly hold up for a decade or more before yellowing affects light transmission enough to warrant replacement. Flashing and seals are usually the first component needing attention, well before the dome itself needs replacing.

Is a sun tunnel rated for Houston’s hurricane-season wind and hail?

We install flashing kits and domes rated for the wind-uplift and impact requirements applicable to Houston’s coastal wind zone under the locally adopted building code. Confirming the specific product rating against your roof’s wind-zone classification is part of our pre-installation assessment.

General Company & Process FAQs

About Achilles Roofing & Exteriors

Are you a licensed and insured local roofing company?

Yes. Achilles Roofing is fully licensed, bonded, and insured in the state of Texas. We are a locally owned and operated company based in Houston, proudly serving homeowners across Houston and all surrounding areas. Our commitment is to our community, and we stand by the quality and safety of every project we undertake.
Can I see examples of your past work or speak to previous clients?

Absolutely. We are proud of our work and have an extensive portfolio of before-and-after project galleries. We are also happy to connect with previous clients in the Houston area who can speak to their experience with our team
What makes Achilles Roofing different from other Houston roofers?

We’re roofers, not just salesman. Our reputation is built on honest work, transparent communication, and treating every Houston family we work with like our own. We focus on providing the right solution for your home and budget, backed by robust warranties and a commitment to exceptional craftmanship.
Do you use subcontractors for your roofing projects?

No. We believe in accountability and consistency quality, which is why your roof is installed by our own trained, in-house Achilles Roofing crews. We don’t outsource our work, ensuring that every project meets our high standards from start to finish.
How long have you been in business?

Our leadership team has decades of combined experience in the Texas roofing and storm restoration industry. As a company, we have succesfully completed hundreds of roof replacement and repairs in Houston neighborhoods, building a strong reputation for quality and reliability.

Pricing, Estimates & Financing

What’s your emergency tarp fee?

$300 minimum for a 5×5 area, covering emergency leak protection until permanent repairs begin.
Do you replace skylights?

Yes. Velux skylight replacement is $2,000, double dome is $1,500, and labor/installation-only is $600. All skylight work carries a 5-year labor warranty.
How much does shingle roofing cost per square?

GAF HDZ runs $127.50/square, GAF NS is $109/square, and OC Duration is $127/square. Pricing varies by roof size and complexity — call (832) 888-1666 for a free estimate.
What roofing packages does Achilles Roofing offer?

Three tiers: Good (Builder Grade shingles, 2-year labor warranty, no material warranty), Better (GAF NS shingles, 5-year labor warranty, manufacturer material warranty), and Best (GAF UHDZ shingles, 10-year labor warranty, enhanced manufacturer warranty). Call (832) 888-1666 to find the right fit for your budget.
How much does a new roof cost in Houston?
The cost of a new roof is a significant investment, and the final price depends on several factors, including the size, pitch (steepness), and complexity of your roof, as well as the specific materials you choose.

While every home is unique, we want to provide some general price ranges for a typical 1,500 sq. ft. home in the Houston area to help you budget:
- Architectural Shingles (Most Popular): $5,500 – $8,500
- Impact-Resistant/ Designer Shingles: $9,000 – $14,000+
- Standing Seam Metal Roof: $15,000 – $25,000+
For a More Accurate Quote: Get Your Instant Estimate Now

These are ballpark estimates for planning purposes only. The best way to get a precise and instant quote for your specific property is to use our free instant estimator tool. It uses advanced satelite imagery to measure your roof and provide a detailed, accurate estimate for your replacement and installation.
Do you offer financing options?

Yes, we make it easy to get the roof you need now with the affordable and flexible financing. We have partnered with Greensky® Financing, a leader in home improvement loans, to offer our customers excellent payment options. Through this partnership, qualified homeowners can get a brand-new roof with $0 Down and low monthly payments, starting at just $199/month.

This program allows you to protect your home immediately without the stress of a large upfront payment. You can learn more about the benefits and get pre-qualified in minutes on our financing page.

Learn More About Greensky® Financing.
What is included in your roofing estimate?

We believe in 100% transparency. Every written estimate from Achilles Roofing includes a detailed breakdown of all costs, including materials, labor, tear-off and disposal of the old roof, and thorough site cleanup, You will also receive clear start and completion timelines, payment schedules, and full warranty details. There are no hidden fees.

The Roofing Process

How will you communicate with me during the project?

We believe in constant communication. You will be assigned a dedicated project manager who will be your single point of contact. They will provide daily updates, including photos and progress reports, and are always available to answer your questions via phone call or text.
How do you protect my home and property during the installation?

Your property’s protection is a top priority. Our crews use heavy-duty tarps and protective boards to cover your landscaping, windows, AC units, and driveway. We conduct a thorough cleanup at the end of each day and use magnet sweeps to collect any stray nails or metal debris, leaving your property spotless.
Do you handle city permits and inspections?

Yes, we manage the entire process for you. This includes pulling all necessary permits with the City of Houston or your local jurisdiction and scheduling the final inspection upon completion. We ensure your new roof is fully complaint with all local building codes and manufacturer standards.

Materials & Warranty

Do you install attic or roof vents?

Yes — we install Attic Breeze and Remington Solar vent systems for improved attic ventilation and energy efficiency.
What shingle colors are available?

Builder Grade comes in Brown, Gray, or Black. GAF shingles offer Slate, Weathered Wood, Charcoal, Barkwood, Mission Brown, Hickory, and Pewter Grey.
Why do different roofing options have different prices and warranties?
Your roof is a complete system, and the materials you choose play the biggest role in it’s long-term performance, durability, and the level of protection you receive. We offer several options to ensure we can provide the perfect solution for every home and budget.
- Standard Achitectural Shingles offer excellent value and protection, backed by our 5-year workmanship warranty and solid manufacturer warranties.
- Premium GAF System often include impact-resistant technology and come with enhanced, non-prorated warranty coverage for the ultimate peace of mind.
During your free assessment, our team will walk you through the specific benefits of each option, helping you choose the right balance of performance, longevity, and price for your situation.
What are the best roofing materials for the Houston climate?
Houston’s unique combination of intense sun, high humidity, and severe storms demands durable and well-ventilated roofing systems. We typically recommend:
- Impact-Resistant Shingles: These are designed to withstand hail and high winds, which can often lead to insurance discounts.
- “Cool Roof” Shingles: These reflective shingles can lower your roof’s temperature, reducing your energy bills during hot Texas summers.
- Proper Attic Ventilation: This is critical in our humid climate to prevent moisture buildup and extend the life of your entire roofing system. We always ensure your ventilation is up to code.
What kind of warranties do you offer?
We provide a powerful, dual-layer warranty system to give you complete peace of mind. Your new roof is protected by two separate warranties: one for the installation quality (our workmanship) and one for the materials themselves.
1. Our 5-Year Workmanship Warranty: This is our direct promise to you. For a full five years after your installation, we cover any issues related to the quality of our work. If there’s a problem caused by our installation, we will fix it, no questions asked. This guarantees the quality and skill of our certified crews.
2. The GAF Manufacturer’s Warranty: As GAF Certified roofers, we are able to offer robust warranties direclty from the manufacturer. This warranty protects you against any defects in the roofing materials themselves. Depending on the GAF System you choose, this can include long-term, non-prorated coverage that provides an exceptional level of protection for your investment.
By combining our workmanship guarantee with a top-tier manufacturer’s warranty, we ensure that every aspect of your new roof is covered for years to come.