skylight

Why Is My Skylight Foggy Between the Glass Panes?

October 29, 2026 By Webmaster

Fog trapped between skylight panes usually means the insulated glass unit’s edge seal has failed, allowing moisture into the space between the glass. Unlike condensation on an accessible surface, this moisture cannot be wiped away. Replacing the affected glass unit, or the skylight when necessary, is generally the lasting solution.

November and December often make the problem more noticeable. Cold outdoor temperatures encourage moisture inside compromised glazing to condense. The skylight may appear clear during certain hours and cloudy during others. Temporary clearing, however, does not necessarily mean the seal has recovered.

Is It Failed Skylight Seals or Surface Condensation?

Before arranging repairs, identify where the moisture appears. These three situations require different responses:

Interior condensation: Moisture forms on the glass facing the room and can usually be wiped away when safely accessible.
Exterior condensation: Moisture develops outside the skylight under certain weather conditions.
Between-pane fogging: Haze, droplets, or streaks remain inside the sealed glass assembly and cannot be reached by cleaning.

Only check the interior glass if you can reach it safely. Do not climb onto the roof. Photograph the fogging and note whether it follows cold nights, bathing, cooking, or rainfall.

Why Do Skylight Seals Fail?

Insulated glazing depends on a sealed perimeter to keep moisture out. Repeated temperature changes, installation stresses, weather exposure, and material deterioration can eventually compromise that perimeter.

When moisture enters, the unit’s moisture-absorbing material can become overwhelmed. Condensation then develops between the panes. In gas-filled units, seal failure may also allow insulating gas to escape, reducing the glazing’s original thermal performance.

This differs from damaged flashing. Flashing directs roof water around the skylight opening. A skylight can have foggy insulated glass without leaking rainwater. Similarly, roof-related leakage can occur while the glass remains clear.

Can Cleaning or Caulking Remove the Fog?

Cleaning accessible surfaces will not remove moisture trapped inside insulated glazing. Adding caulk around the outside does not reconstruct the factory-made glass seal or restore lost insulating gas.

Defogging treatments may improve appearance in some situations, but cosmetic clearing should not be confused with restoring the original glazing system. Before approving treatment, ask:

Does it restore the sealed glass assembly?
Will insulating performance be restored?
Could fogging return?
What does the warranty cover?

Avoid drilling glass, applying improvised sealants, or covering drainage openings. These shortcuts can create additional problems without resolving the failed seal.

Should You Replace the Glass or the Skylight?

Glass replacement may be appropriate when compatible glazing is available and the frame, operating components, and roof connection remain sound. This approach addresses the failed insulated unit without automatically replacing everything.

Full replacement becomes more compelling when the frame is deteriorated, hardware is failing, leaks recur, or replacement glass is impractical. The skylight’s age and overall condition should guide the decision.

Check existing warranty coverage before approving work. Installation records, manufacturer information, photographs, and approximate age can help clarify the available options.

What Should You Do Before Winter?

Record changes in visibility and report ceiling stains, active drips, cracked glass, or damp trim separately. These symptoms may indicate problems beyond glazing failure. Arrange an assessment before assuming that humidity control, fresh caulk, or cleaning will solve the issue.

Discuss Your Skylight With Aluplex

Contact Aluplex to discuss persistent fogging, suspected failed skylight seals, or an aging unit before winter conditions complicate repairs. The company offers residential and commercial skylights, repair, installation, and replacement services. Explain whether the haze is trapped between panes and mention accompanying leaks or operating problems.

Request an assessment to understand whether replacement glazing or a new skylight better suits the existing installation, rather than choosing a cosmetic treatment that leaves the underlying issue unresolved.

How Many Years Do Skylights Last?

July 31, 2026 By Webmaster

Skylights don’t last forever, even if they haven’t leaked yet. Many residential units fall somewhere between about 10 and 30 years of useful life, depending on material, quality, and exposure. Well‑made glass skylights with proper installation tend to be at the longer end of that range, while older or plastic units often age faster, becoming cloudy, brittle, or prone to seal failure.

Installation quality and roof condition matter too. A skylight that’s properly flashed into a sound roof can perform for decades; one set into a poorly detailed opening may show problems much sooner.

What Shortens Or Extends Skylight Life

Several factors influence how long your skylight lasts:

Material: Glass usually outperforms plastic or acrylic over time
Climate: Snow, ice, strong sun, and temperature swings stress seals and frames
Installation: Correct flashing and integration with roofing are critical
Maintenance: Clearing debris and checking seals slows wear and tear

Leaving leaves, ice, or standing water around the skylight curb can trap moisture and accelerate deterioration. Simple visual checks and basic roof maintenance go a long way toward protecting the unit.

How Airflow And Ventilation Help

Skylight airflow is about comfort and condensation control more than a strict “expiry date,” but it still affects performance. Venting skylights that can open allow warm, stale air to escape, improving ventilation and reducing stuffiness on upper floors. Better air movement around the skylight area helps keep humidity levels reasonable.

Less humidity and condensation on the interior side of the glass means less moisture sitting on paint, trim, and seals. Over time, this can indirectly help keep interior finishes and framing in better condition.

When To Plan For Replacement

Even if a skylight isn’t leaking, replacement becomes smart at certain points:

When replacing the roof, so new shingles and skylights are integrated together
After 20+ years of service, when seals and older glazing may be past their best
When you see repeated condensation between panes or visible deterioration

Upgrading an older unit to a modern skylight does more than just refresh the look of your roof. Newer models use advanced glazing that helps control heat gain in summer and reduce heat loss in winter, so rooms feel more comfortable without your HVAC working as hard. Better seals and insulated glass also cut down on drafts and condensation, which protects interior finishes.

If you choose a venting skylight, you gain the ability to release warm, stale air at the ceiling level, improving airflow and reducing stuffiness on upper floors or in enclosed spaces like bathrooms and lofts. That natural ventilation can complement mechanical systems, making the room feel fresher with less reliance on fans.

Together, improved glazing and optional venting turn the skylight into both an energy helper and an airflow tool, rather than just a source of light.

Talk To Aluplex About Skylight Lifespan And Upgrades

If your skylight is getting older or you’re planning roof work, it’s a good time to ask whether repair or replacement makes more sense. Aluplex can evaluate your existing units, recommend modern options with better airflow and efficiency, and install skylights that are matched to your roof and your home’s needs. Reach out to Aluplex today to schedule a consultation and ensure your skylights keep your space bright, comfortable, and protected for years to come.

Will My Skylight Leak?

July 28, 2026 By Webmaster

Most modern skylights are designed as part of a watertight roofing system, not as “holes waiting to leak.” When a qualified installer sets them in place, uses the correct flashing kit, and ties everything into the shingles or other roofing material according to manufacturer instructions, they can stay dry for many years.

Ongoing care—like keeping debris away from the curb and watching for damage after storms—helps that performance continue. When leaks do appear, the skylight itself is usually not the root cause.

More often, aging rubber seals lose flexibility, glazing cracks or separates, flashing was done poorly or has been disturbed, or the surrounding roof has developed problems that let water travel toward the opening. In other words, skylights tend to leak because something around them has failed, not because the basic idea of having a skylight is flawed.

If your skylight is newer, properly installed, and the roof is in good shape, it should stay dry inside. Older units, bargain models, or skylights that have been surrounded by repeated patching are more likely to let water in, especially during heavy rain or snow melt.

Common Signs Your Skylight Needs Attention

Early leak signs are often subtle. You might notice:

Stains or damp spots on the ceiling below the skylight
Drips at corners or edges during storms
Condensation trapped between glass layers

Stains and drips suggest water getting past flashing or seals. Fogging between panes points to failed glass seals. Ignoring these small warnings can lead to damaged drywall, insulation, and framing over time, so they’re worth checking out promptly.

What Skylight Repair Usually Involves

Skylight repair focuses on wherever water is getting in. Typical professional fixes include:

Re-sealing joints between the glass and frame
Replacing hardened or crumbling gaskets and seal strips
Reworking flashing around the skylight curb
Addressing roof issues (shingles, underlayment) immediately around the unit

Quick DIY caulking over old material often hides the problem temporarily instead of solving it. Proper repair starts by removing failed patches, cleaning surfaces, then applying new, compatible flashing and sealants so water is redirected correctly.

When Repair Isn’t Enough

At a certain age, repair stops being the best answer. Many skylights are in their “normal” lifespan somewhere in the 10–30 year range, with plastic units typically on the shorter side and high‑quality glass units lasting longer. If your skylight is decades old—especially if you’re replacing the roof anyway—full replacement is often more cost‑effective than chasing leaks year after year.

Replacing the skylight with the roof also helps ensure the two are integrated properly, which reduces future sealing problems and disruption.

Why Call Aluplex For Skylight Repair And Advice

If you’re seeing stains, drips, or fogging around your skylight, don’t wait for the next storm to test it. Aluplex can inspect the skylight, flashing, and surrounding roof, then explain clearly whether you need targeted repair or full replacement.

Their skylight specialists handle leaks, upgrades, and new installs across the GTA. Contact Aluplex today to book an assessment and keep your home bright—without worrying about water coming in.

5 Smarter Skylight Upgrades Toronto Roofers Recommend

June 30, 2026 By Webmaster

Many Toronto homeowners inherit old skylights that are foggy, drafty, or starting to leak. Replacing them is a chance not just to fix a problem, but to upgrade light, comfort, and energy performance. Modern skylights are safer, more efficient, and more versatile than older units, and roofers who work with them regularly tend to recommend a few key improvements.

1. Choose Energy Efficient Glazing

One of the most impactful upgrades is better glass. New skylights often come with:

Double or triple glazing to reduce heat loss in winter
Low‑E coatings that cut summer heat gain while still letting in plenty of light
Argon gas fills between panes to further improve insulation

For Toronto’s mix of cold winters and warm summers, upgrading to energy efficient glazing can reduce drafts and hot spots and help keep indoor temperatures more stable year‑round.

2. Switch From Fixed To Vented Units Where It Makes Sense

If your existing skylight is fixed and the room often feels stuffy, replacing it with a vented unit can improve comfort. As discussed earlier, vented skylights allow hot air to escape and fresh air to enter, which is especially useful in:

Top floor bedrooms
Finished attic spaces
Stairwells and upper hallways

Roofers will usually look at your roof pitch, interior layout, and access to determine whether a manual, electric, or solar powered vented skylight is the best choice during replacement.

3. Add Built‑In Sun Control

Harsh sunlight can fade finishes and make rooms uncomfortably bright. Many modern skylight systems offer integrated options to soften or control light, such as:

Factory‑fitted blinds or shades that can be manual or powered
Tinted or diffused glazing that reduces glare while still allowing daylight
Light diffusing glass that spreads light evenly instead of in sharp beams

Including sun control at replacement time helps you enjoy natural light without dealing with the “spotlight” effect or excessive heat on sunny days.

4. Improve Flashing And Roof Integration

Older skylights may have been installed with basic or improvised flashing details that are now breaking down. When replacing a skylight, roofers typically:

Use manufacturer‑specific flashing kits designed for your roof type
Repair or replace surrounding shingles or roofing panels for a clean tie‑in
Check roof deck condition around the opening and reinforce as needed

This upgrade is less visible to homeowners but makes a big difference in long term leak resistance and overall roof performance.

5. Right‑Size And Reposition For Better Light

Many existing skylights are either too small to make much impact or placed where they do not really help the room. Replacement is an opportunity to:

Increase or slightly adjust the opening to bring more balanced light into key areas
Line up skylight placement with room layout, such as over islands, stair landings, or seating areas
Reduce or eliminate awkward glare on screens or work surfaces by thoughtful positioning

Roofers familiar with skylight replacement in Toronto can suggest adjustments that fit within structural limits while significantly improving how the room feels.

Why Plan Skylight Replacement With A Specialist

Replacing a skylight is not just a glass swap. It involves roofing, insulation, ventilation, and interior finish considerations. Working with a company like Aluplex gives you access to models designed for local weather, proper flashing systems, and advice on energy efficiency and comfort upgrades. If your current skylights are cloudy, drafty, or causing leaks, coordinating replacement with roof work during a milder season can give you better light and a more reliable roof in one project.

Beat Summer Heat With Breezy Vented Skylights

June 29, 2026 By Webmaster

Toronto summers feel hotter every year, and upper floors often turn into stuffy, overheated zones by late afternoon. Vented skylights offer a clever way to let that trapped hot air escape while pulling cooler air in from below. When they are planned and installed properly, they can make a real difference in comfort without cranking the air conditioning all day.

Why Ventilated Skylights Help In Toronto Homes

Warm air naturally rises, which is why top floors and stairwells feel so hot in summer. A vented skylight placed high in the ceiling or at the top of a stairway gives that warm air a controlled exit point. When the skylight is opened, it acts like a chimney for heat, letting the hottest air out and encouraging cooler air to flow in through lower windows and doors.

In Toronto’s climate, this stack effect can be especially noticeable on cooler evenings. Opening lower windows and a vented skylight together can quickly clear out stale indoor air and replace it with fresh outdoor air before bedtime, without relying on mechanical systems.

Types Of Vented Skylights To Consider

There are three main vented skylight options commonly used in homes:

Manual vented skylights
These open with a crank handle or control rod. They are simple, reliable, and work well where the skylight is still within reach, such as over a landing or lower cathedral ceiling.
Electric vented skylights
These use a wall switch or remote control and are ideal for skylights that are too high to reach safely. Some models include rain sensors that automatically close the skylight when it starts to rain.
Solar powered vented skylights
These use a small solar panel to power the opening mechanism, avoiding the need for wiring. They are popular in retrofit situations where running electrical lines would be difficult or disruptive.

Choosing the right type usually depends on ceiling height, accessibility, and how often you expect to open and close the skylight.

Where To Place Vented Skylights For Best Effect

Placement matters. The most effective locations for vented skylights in Toronto homes tend to be:

Top of stairwells, where rising warm air collects
Upper hallways and loft spaces that feel stuffy
High ceilings in living areas or great rooms
Finished attics or top floor bedrooms

Positioning a vented skylight above these hot spots helps pull warm air up and out, while allowing cooler air from lower levels to drift upward. It also brings natural light to areas that are often dim, improving both comfort and mood.

Everyday Benefits Beyond Cooling

Vented skylights do more than just release heat. They also:

Improve indoor air quality by letting cooking smells, humidity, and stale air escape
Help reduce humidity in bathrooms and upper floors when paired with exhaust fans
Cut down on the feeling of “stale” indoor air after long closed‑up periods

Over time, better ventilation can support the health of finishes and materials in the home by reducing excess moisture and heat buildup.

Why Work With A Skylight Specialist In Toronto

Successful skylight ventilation depends on good sizing, placement, and flashing details that keep water out while letting air out. A specialist like Aluplex can assess your roof structure and interior layout, then recommend vented skylight models and locations that fit your home and goals. From choosing between manual and solar powered units to planning for proper weatherproofing and room finish, professional guidance helps ensure your skylight improves summer comfort without introducing leaks or drafts.

Are Skylights Safe During a Storm?

May 26, 2026 By Webmaster

Summer storms in Toronto can roll in fast, with heavy rain, strong wind, and even hail. A lot of homeowners wonder if skylights are safe during a storm, especially if they are thinking about new skylight installation Toronto contractors are offering for Summer 2026. The short answer is that a modern, properly installed skylight is designed to handle severe weather, but a few key details make all the difference.

How Modern Skylights Are Built For Storms

Today’s skylights use tempered or laminated glass rather than basic window glass. Tempered glass is heat‑treated to be stronger and, if it ever breaks, it crumbles into small pieces rather than sharp shards. Laminated glass has a plastic interlayer that holds fragments in place if the outer surface cracks.

Frames are engineered to work with the roof pitch, with integral flashing kits that move water around the skylight opening instead of letting it sit and seep in. When a unit is matched to the correct slope and installed to the manufacturer’s directions, it sheds water in much the same way as the rest of your roof.

Wind, Hail, And Impact Concerns

High winds create two main forces: pressure that pushes on the glass and uplift that tugs at the frame and flashing. Quality skylights are tested for these loads and must meet specific standards for both wind and water resistance. Proper fastening to the roof framing helps the unit stay secure when gusts hit.

Hail can still chip or crack glass if stones are large enough, but modern skylight glass is far more impact‑resistant than older acrylic domes. Many products are tested to impact standards similar to those used for windows in storm‑prone regions, which gives an extra layer of safety in harsh weather.

Biggest Risk: Poor Installation, Not The Skylight Itself

Most storm‑time leaks trace back to how the skylight was installed, not to the basic idea of having one. Common issues include:

Wrong flashing kit for the roof material or slope
Shortcuts with underlayment around the opening
Old skylights left in place during a re‑roof, with flashing not updated
Units installed too flat, allowing water to pool

When a skylight is planned as part of a roof system rather than an afterthought, these problems are much easier to avoid. This is one reason many pros suggest replacing older units when you replace the roof.

What You Can Do Before A Storm Hits

If you already have skylights, you can take a few simple steps ahead of storm season:

Check ceilings and walls under skylights for stains or peeling paint.
Look from the ground for cracked glass, damaged seals, or missing shingles nearby.
Clear debris (leaves, branches) that traps water on the roof around the unit.

If you see any warning signs, it’s better to have a contractor inspect and repair or replace before the next big storm, instead of waiting for a leak during heavy rain.

Are Vented Skylights Riskier In Storms?

Vented skylights are safe in storms as long as they’re closed and latched. Many newer electric or solar units have rain sensors that close them automatically when wet weather starts. This feature is especially helpful in Toronto’s fast‑changing summer conditions.

The key is to make sure seals and gaskets stay in good shape over time. Regular checks and simple maintenance keep vented units performing as well as fixed ones when storms roll through.

When A New Skylight Installation Makes Sense

If your current skylights are old, yellowed, or have leaked before, replacing them with modern units during your next roof project can improve both safety and performance. Newer designs provide:

Better seals and flashing systems
Stronger, more secure glass options
Improved energy performance for both summer and winter

Planning skylight installation Toronto‑style—tied in with a professional roofing job and matched to local weather patterns—gives you bright rooms without added storm worries.

Contact Aluplex Today

If you’re unsure whether your current skylights are storm‑ready, or you’re thinking about adding new ones this summer, contact Aluplex today. Their team can assess your roof, recommend the right skylight models and glass options, and handle skylight installation Toronto homeowners can trust to stand up to summer storms for years to come.