When Ontario’s short, gray winter days arrive, natural light can dramatically improve comfort and reduce energy usage. Two popular solutions are skylights and sun tunnels (tubular skylights). Both are services Platinum Roofing installs and maintains — choosing the right one depends on room size, roof type, insulation priorities, and budget. This guide explains the differences, installation considerations for winter, expected costs, and maintenance tips.
What are skylights and sun tunnels?
- Skylights: Glass or polycarbonate windows installed directly into the roof structure that bring wide, direct daylight and a view of the sky. They come as fixed, vented, or tubular styles and are ideal for larger rooms.
- Sun tunnels (tubular skylights): Reflective tubes that capture roof-level sunlight and channel it into smaller interior spaces (hallways, closets). They’re typically less invasive to install and more energy-efficient in small spaces.
Pros & cons — quick comparison
Skylights
Pros:
- Large daylight contribution, can be vented for airflow.
- Adds a design element and outside view.
Cons: - Higher cost, more heat loss if poorly insulated, more complex flashing and sealing (higher leak risk if not installed correctly.
Sun tunnels
Pros:
- Lower cost, great for small or interior rooms, less heat transfer, easier retrofit installation.
Cons: - No outside view; light is diffused and best for smaller footprints.
Winter considerations (Ontario climate)
- Ice & snow buildup: Skylight domes and flashings must be properly sealed to avoid leaks when snow melts and refreezes. Sun tunnels, with smaller roof penetrations and reflective tubes, typically present a smaller leak surface.
- Insulation & condensation: Venting options and thermally broken frames reduce condensation in cold months. Ask your installer if they use insulated skylight units or a condensation-control design.
Cost expectations (ballpark)
- Fixed skylight installation (small): lower-to-mid hundreds for product + installation; ventilated and larger units: higher cost. Tubular sun tunnels commonly fall into a lower cost band for both product and installation. For exact pricing, request a quote — Platinum Roofing’s skylight pages include example cost ranges and service descriptions.
Installation: professional checklist
- Roof structural assessment (can the rafters support the opening?).
- Flashing integration with shingles and underlayment to prevent leaks.
- Interior finishing: drywall rings, diffusers, or window frames.
- Proper sealing and manufacturer warranty registration.
Platinum Roofing provides skylight and sun tunnel installation and repair across Hamilton, Oakville, and neighboring areas. If your home has existing skylights showing signs of leaks, schedule an inspection.
Maintenance tips for winter
- Keep snow cleared from around skylight domes (use a roof rake from the ground).
- Inspect flashing after freeze-thaw cycles.
- Check for interior condensation or water staining — address sealing and ventilation if present.
- For sun tunnels, ensure the diffuser is clean and the tube isn’t obstructed.
Use-cases: which to pick
- Large bathroom or living room with good roof access + want a view: Skylight (fixed or vented).
- Hallway, closet, or small bathroom with no roofline view needed: Sun tunnel (cost effective).
- Low-slope roofs or complex flashing details: Consider sun tunnels or consult a professional to confirm skylight flashing compatibility.
FAQs
Q: Which is better for energy efficiency — skylight or sun tunnel?
A: Sun tunnels typically have less heat transfer because of their smaller roof penetration and diffused light. Insulated skylights with high energy ratings can be efficient, but check product specs.
Q: Will a skylight cause leaks in winter?
A: Not if properly installed with quality flashing and underlayment. Poor installations are the main cause of leaks. Platinum Roofing offers professional skylight flashing and repair services.
Q: Can a skylight be added during winter?
A: Installations in winter are possible but can be more complex due to cold adhesives and snow. Where feasible, schedule installation on milder days or plan for spring — however, emergency repairs are done year-round.
Q: How long does installation take?
A: A typical sun tunnel can be completed in a few hours; skylights take longer (half day to a day), depending on interior finishing.
Natural light makes Ontario winters happier and can reduce energy use in some rooms. If you’re in Hamilton, Burlington, Oakville, Milton or Niagara and considering skylight or sun tunnel work this December, get a free consultation with Platinum Roofing — they’ll evaluate your roof, explain options, and provide an itemized quote.
