
Modern office design often highlights large windows and natural light. These features should create inviting workspaces. However, unmanaged heat and glare from sunlight often turn this advantage into a challenge. Companies with sun-exposed offices frequently struggle with employee comfort, energy inefficiency, and inconsistent work conditions.
By addressing heat and glare head-on, businesses can realize measurable paybacks. Solutions like sun control window films not only improve comfort but also save on energy costs. In this article, we explore the specific problems of heat and glare, why conventional methods fall short, and how smart investment pays off fast.
The True Impact of Heat and Glare in Office Environments
Natural sunlight provides a psychological boost, but when uncontrolled, it causes discomfort and distraction. Heat and glare are not just minor annoyances — they affect productivity, increase operational costs, and reduce employee satisfaction.
Uncomfortable Temperatures: A Hidden Energy Drain
Sun-exposed windows allow solar energy to flood into office spaces. This raises indoor temperatures unevenly. Thermostats placed centrally read an average temperature. But in reality, rooms with direct sunlight get much hotter than shaded ones.
This results in:
Hot zones that feel stifling and distract employees.
Cold zones that feel clammy as the AC overcompensates.
Constant air conditioning, straining HVAC systems and raising costs.
Heat and glare force HVAC systems to work harder than needed. Instead of balanced comfort, you get extremes — and an expensive energy bill.
Heat and Glare and the Battle Against Productivity
Glare is a visual nuisance. It washes out computer monitors and forces employees to squint or adjust screens constantly. Meetings become less effective when participants struggle to view shared screens or presentations.
Here’s how heat and glare directly affect productivity:
Visual discomfort leads to eye strain and fatigue.
Employees spend time adjusting blinds or moving around.
Reduced ability to focus on screen-based tasks.
Poor visibility can translate into lost hours and workplace frustration — two factors that no company can afford.
Conventional Solutions: Do They Really Work?
When companies first encounter problems from heat and glare, the most common response is to install blinds or heavy drapes. Unfortunately, this strategy often introduces more problems than it solves.
Darkening Blinds and Drapes: The Wrong Fix
Covering windows seems like a quick and easy way to block glare. In reality, it only offers partial relief. Yes, visibility on screens improves. But the underlying heat and glare issue remains unsolved.
Here’s why blinds fail to fix the problem:
Heat still enters the room. Solar energy converts into infrared radiation and warms the space.
Views are blocked. The original purpose of large windows — providing a positive, open work environment — is lost.
Darkened interiors hurt morale. People work better with daylight and outside views, not dim, cave-like offices.
This approach reduces one symptom while ignoring the root cause. It doesn’t manage heat and glare — it just covers them up.
The Smart Solution: Sun Control Window Film
There’s a better answer. High-quality sun control window films directly target heat and glare, delivering long-term performance and energy savings. These thin, nearly invisible films apply directly to windows. They reject a significant percentage of solar energy and filter visible light without darkening the room.
How Window Film Tackles Heat and Glare
Instead of blocking the window, window film improves it. Let’s break it down:
Solar heat rejection: Films block up to 80% of solar heat gain, keeping interiors cooler.
Glare reduction: Films reduce glare by filtering excessive visible light, improving screen visibility.
UV protection: Films block 99% of harmful UV rays, protecting furniture and skin.
Natural light maintained: Unlike drapes, films let in pleasant, soft daylight and preserve views.
With this solution, businesses gain all the benefits of windows — without the downside of uncontrolled heat and glare.
Real Payback: Fast and Measurable ROI
Many companies hesitate at the thought of another facilities upgrade. But investing in sun control film delivers one of the fastest paybacks in commercial energy efficiency.
Case Study: 400 Square Feet of Windows
Let’s run the numbers on a modest-sized office:
Window area: 400 square feet (about 30 standard windows).
Sun exposure: Edmonton, Alberta, averages 2345 hours of sunshine annually.
Conservative estimate: 160 working days × 10 hours = 1,600 hours of strong sun per year.
Let’s apply the formula:
Energy Saved =
(250 W/m² × 400 ft² / 10.76 m²) × hours × (100% – efficiency loss)
Assume a high-quality film with 75% solar energy rejection:
Energy Saved per hour =
(250 × 37.17) × (0.75) ≈ 6,964 watts/hour = ~7 kWh/hour
Total daily savings =
7 kWh/hour × 10 hours = 70 kWh/day
Annual savings =
70 kWh/day × 160 days = 11,200 kWh/year
What Does That Save in Dollars?
Electricity prices in Alberta vary between $0.045–$0.12 per kWh. So:
Low estimate: 11,200 × 0.045 = $504/year
High estimate: 11,200 × 0.12 = $1,344/year
Most businesses fall between these values — around $430 to $1,160 per year saved on energy alone. Just reducing the heat component of the sun control film will result in the film paying for itself in under 5 years.
Payback Time For Stopping Heat and Glare
The claim was that sun control films could further impact businesses with improved productivity in late afternoon when the glare it at its worst. In winter, Edmonton experiences very low sun angles which compound glare issues. In a company of 30 (reasonable for 400 sq ft of window space), lets say the average wage is $30/hr (or $60k annually).
How many wasted hours would have to be saved to pay for the film in 2 years (assuming it cost $5k installed)?
$5000 – $1160 x 2 years = $2680 / $30 / 30 people / 220 working days in a year * 60 min = 0.812 min or 48.7 seconds per day per person.
Putting it into seconds shows the impact. If it takes 15 seconds to turn down the blinds, another 20 seconds to get back on task and 13.7 seconds to roll the blinds back up you have 48.7 seconds. For someone else it might be repositioning a monitor and adjusting their desk. Or a disruption in a boardroom when the sun just perfectly hits the presentation so no one can see, that brought up the average!
You get the point, film can have a big impact on the work environment. Ideally, seamlessly disappearing and letting everyone enjoy the view.
Additional Benefits of Managing Heat and Glare
While energy efficiency and visibility are top priorities, sun control film offers bonus benefits you might not expect.
Better Thermal Comfort = Happier Employees
When temperatures stay consistent across office zones, employees stay focused. You avoid hot and cold zones that distract workers and create thermostat wars.
Comfortable workers are:
More productive.
Less likely to complain.
Less prone to fatigue.
All this leads to better retention and less time lost to discomfort-related issues.
Reduced Maintenance and Equipment Load
AC systems don’t have to fight daily battles against extreme solar heat. This reduces wear and lowers the frequency of costly repairs.
Lower cooling load
Fewer filter replacements
Longer lifespan of HVAC components
Over time, these savings add up. Your maintenance team will thank you.
Protected Interiors
Ultraviolet rays not only affect people — they damage interiors too. Fading carpets, discolored furniture, and cracking materials all result from constant sun exposure.
Sun control films offer 99% UV rejection, extending the life of your interior investments.
Heat and Glare: A Daily Cost You Can’t Ignore
Every day you operate with unmanaged heat and glare, your business loses money and productivity. The costs are hidden in utility bills, lost focus, lower morale, and early equipment breakdown.
Let’s recap what heat and glare do to your business:
Create discomfort with hot and cold zones.
Cause constant AC use and higher energy bills.
Reduce screen visibility and team focus.
Push employees to cover windows and block views.
Undermine the benefits of modern office design.
And the fix?
Install sun control film.
Improve comfort, visibility, and energy efficiency.
Realize a quick payback within 1–2 years.
Take Action: Tackle Heat and Glare Today
If your office deals with sun exposure, it’s time to act. You don’t need to settle for poor visibility, uncomfortable workspaces, or excessive energy costs. A single smart investment in window film can fix multiple problems at once.
Where to Start?
Assess your office. Identify which rooms or zones suffer from heat and glare.
Measure window area. Calculate potential savings based on your square footage.
Get a quote. Speak with professionals about film types and installation costs.
Install and save. Start benefiting from day one — improved comfort, lower bills, and happy employees.
Conclusion: Don’t Let Heat and Glare Win
You don’t have to choose between natural light and a productive workplace. You can enjoy both — and save money — by taking heat and glare seriously. Window film delivers a short-term payback and a long-term improvement in workplace quality.
Investing in your office environment isn’t a luxury — it’s a strategic move. It boosts comfort, protects equipment, and helps your bottom line. Tackle office heat and glare now, and watch the great payback unfold.
Recent Comments