Start Your Project
Start Your Project

Enhancing Indoor Comfort & Thermal Performance: Considerations for Skylights

September 6, 2023

Enhancing Indoor Comfort & Thermal Performance with Skylights

The importance of indoor comfort and thermal performance cannot be overstated in residential and commercial spaces. Achieving optimal indoor conditions is essential for the well-being and productivity of occupants.

Numerous studies have highlighted the significant impact of indoor comfort on employee satisfaction, productivity, and overall performance. Employees working in comfortable, naturally-lit environments exhibited a 5% to 15% increase in productivity compared to those in uncomfortable spaces.

This emphasizes the need for effective strategies to enhance indoor comfort and thermal performance in commercial buildings. In this article, we will take a closer look at the key considerations you need to make to improve indoor comfort and thermal performance in your residential, commercial, and industrial buildings with the help of skylights.

Role of Temperature in Indoor Comfort

Temperature is a critical factor that directly influences indoor comfort. The ideal indoor temperature can vary based on factors such as the season, geographical location, and specific occupant requirements. Studies have shown that maintaining indoor temperatures between 24°C and 26°C promotes comfort and productivity.

However, achieving and maintaining the desired temperature is not solely dependent on the thermostat setting. Other factors, such as humidity levels, air quality, and direct sunlight, can significantly impact indoor temperature and comfort levels, as per EPA.


Humidity plays a crucial role in thermal comfort. High humidity can make a space feel warmer and increase discomfort, while low humidity can lead to dryness and discomfort. Maintaining optimal humidity levels within the recommended range of 40-60% can help create a comfortable indoor environment.

Air Quality

Air quality is another factor that affects thermal comfort. Poor indoor air quality, caused by pollutants, allergens, and inadequate ventilation, can have detrimental effects on occupant comfort and health.

Implementing effective ventilation strategies, such as mechanical ventilation systems or natural ventilation through skylights, can help maintain good air quality and enhance thermal comfort.


Direct sunlight, especially in hot climates, can lead to excessive heat gain and discomfort. Strategic placement of skylights and the use of shading devices, such as blinds or tinted glass, can help control the amount of direct sunlight entering the space, reducing heat buildup and improving thermal comfort.

Skylights & Thermal Performance

Skylights play a significant role in enhancing thermal performance in commercial buildings. By incorporating skylights, building designers can harness the power of natural light while effectively managing heat gain and heat loss.

Skylights are designed to maximize natural light penetration, reducing the need for artificial lighting during daylight hours. This not only enhances energy efficiency but also contributes to occupant well-being and productivity.

Skylights can be strategically manufactured with the right materials and positioned to take advantage of solar heat gain during colder months. When properly manufactured and installed, skylights can capture and distribute solar energy, providing passive solar heating to the interior spaces. This reduces the reliance on artificial heating systems and results in energy savings.

Conversely, during warmer months, skylights can be designed with features that minimize heat gain. This includes the use of energy-efficient glazing, such as low-emissivity (low-e) coatings, and the incorporation of shading devices to reduce the amount of direct sunlight entering the space.

These measures help prevent excessive heat buildup and reduce the need for mechanical cooling systems, leading to energy savings and improved thermal comfort.

Research studies have demonstrated the effectiveness of skylights in enhancing thermal performance. A study by the University of Sharjah found that buildings with skylights achieved lower cooling loads and energy consumption compared to those without skylights. The study also highlighted the positive impact of skylights on occupant comfort and satisfaction.

Daylighting & Visual Comfort

Daylighting, the strategic use of natural light in interior spaces, offers numerous benefits beyond enhancing thermal performance. Natural light has been shown to improve visual comfort, visual acuity, and overall well-being.

Skylights, with their ability to maximize natural daylight penetration, play a crucial role in achieving optimal daylighting and visual comfort. Studies have consistently demonstrated the positive effects of daylight on occupant well-being and productivity. It leads to:

  • Reduced eye strain,
  • Improved mood, and
  • Increased alertness compared to those in poorly lit spaces.

These findings underscore the importance of incorporating skylights to maximize natural light and enhance visual comfort in commercial buildings. However, it is essential to strike a balance between daylighting and glare control. Excessive sunlight can create glare, leading to discomfort and reduced visual performance.

This can be mitigated by using appropriate glazing materials, such as tempered glass with low-e coatings, or the integration of shading devices like blinds or diffusing films. These measures allow for effective daylighting while minimizing glare and maintaining visual comfort.

Skylights for Residential & Commercial Comfort

Skylights contribute significantly to improving comfort in both residential and commercial buildings. When selecting skylights for optimal thermal performance, it is crucial to consider the materials used during the manufacturing process.

High-quality skylights, such as those manufactured by VTECH Skylights, incorporate safety features and advanced glazing technologies to ensure better thermal performance.

Energy-efficient glazing materials, such as double or triple-pane glass with low-e coatings, can provide enhanced thermal insulation. These glazing options:

  • Reduce heat transfer
  • Help maintain stable indoor temperatures,
  • Improve comfort and
  • Escalate energy savings.

Insulated skylight frames and proper sealing techniques further contribute to thermal performance by minimizing heat loss or gain through the skylight assembly.

Manufacturing Considerations for Better Thermal Performance

Manufacturing techniques and materials play a crucial role in ensuring the thermal performance of skylights. VTECH Skylights employs advanced manufacturing techniques to create skylights that meet the highest standards of thermal efficiency. The selection of appropriate glazing materials is vital for achieving optimal thermal performance.

Tempered glass, known for its durability and strength, is a great way to improve safety during and after skylight manufacturing. It provides excellent thermal insulation and helps reduce heat transfer between the interior and exterior environments.

The incorporation of low-emissivity coatings on the glass surface can also enhance energy efficiency. They do so by reflecting infrared radiation and minimizing heat loss.

Insulation techniques are also critical in maintaining thermal performance. Proper insulation of skylight frames and curbs helps prevent thermal bridging and heat loss or gain through these areas. Advanced insulation materials, such as polyurethane foam or thermally broken frames, improve the overall thermal efficiency of the skylight assembly.

VTECH Skylights uses all these techniques, and more, to help you develop pique indoor comfort and thermal performance for every sector.

In collaboration with architects and material experts, we work closely to provide tailored solutions that maximize thermal performance, visual comfort, and energy efficiency. Call us today to learn more about our solutions and how we can help you get the perfect solution for your property!

Let's Start Your Project

Ready to Experience the VTECH Diffrence?
Get A Quote