Label No. 5 Energy Saving Film — The Complete Guide to Maximum Energy Savings | MAXXMA

1. What is the Label No. 5? Understanding Thailand’s Energy Saving Standard

If you live in Thailand, you’re likely familiar with the bright yellow symbol bearing the number “5” on household appliances, whether it’s refrigerators, air conditioners, fans, or even LED bulbs. This label is the “Label No. 5” — an energy-saving standard issued by the Ministry of Energy of Thailand. But did you know this label isn’t limited to electrical appliances? Architectural window films can also be certified and awarded the Label No. 5 — and this is something Maxxma Film is proud to offer.

1.1 History — From EGAT to the Ministry of Energy

The energy-saving label was initiated by the Electricity Generating Authority of Thailand (EGAT) in the early 2000s, aiming to encourage the public to choose highly efficient appliances and reduce the country’s energy imports. Later, in 2006, the Ministry of Energy took over issuing the labels and continuously improved the standards. In 2019, levels 1-4 were canceled, retaining only “Number 5,” and a star rating system was introduced to specify the efficiency level more precisely — the more stars, the more energy saved (5-10% more per star).

1.2 The New Star System — Understanding the Efficiency Levels on the No. 5 Label

The star system on the new No. 5 label is designed to help consumers easily compare the efficiency of products that have passed the No. 5 standard. For example, an air conditioner with 3 stars might be 20% more efficient than one with 1 star, even though both have the No. 5 label. For window films, the No. 5 certification is measured by the SHGC (Solar Heat Gain Coefficient) value — the lower the SHGC, the better the film prevents heat from entering the building. This directly reduces the load on the air conditioner and saves electricity costs.

1.3 Why “Label No. 5” Matters to Every Household

Thailand is a tropical country with average temperatures above 30°C almost year-round. Over 50-70% of a Thai household’s electricity bill comes from air conditioning alone. Choosing products with the Label No. 5 isn’t just about “helping the nation save energy,” it means more money left in your pocket every month. When you apply this principle to window film installed on house windows, the results multiply in ways you might never have expected.

2. Window Film and Label No. 5 — When Architectural Film Innovation is Certified by the Ministry of Energy

2.1 What is SHGC (Solar Heat Gain Coefficient) and Why Must it be ≤ 0.45?

SHGC or Solar Heat Gain Coefficient is the fraction of solar radiation transmitted through a window, both directly transmitted and absorbed and subsequently released inward. It has a value between 0 and 1, where:

• SHGC = 1 means all solar heat enters the interior (as if there is no barrier).
• SHGC = 0 means 100% heat rejection (impossible in the real world, but high-quality films get close).

The Ministry of Energy mandates that window films receiving the Label No. 5 must have an SHGC ≤ 0.45 — meaning no more than 45% of the sun’s heat can enter your home, while the remaining 55% or more is blocked by the film. This is why Label No. 5 films can significantly lower interior temperatures and drastically reduce the load on your air conditioning.

2.2 VLT (Visible Light Transmission) — The Balance Between a “Bright Home” and a “Cool Home”

A common concern when considering window film is, “Will the house be too dark?” The answer lies in the VLT (Visible Light Transmission) value. Today’s high-quality films — especially Ceramic Films — possess technology that can effectively “filter heat” without needing to “filter light” excessively. Films with high VLT (e.g., 50-70%) will still allow ample natural light into the home while maintaining an SHGC value that passes the No. 5 criteria.

This is the advantage of Maxxma’s Nano Ceramic Independent Plus Film — you get a home that is bright, comfortable on the eyes, not claustrophobic, and doesn’t require turning on lights during the day. At the same time, it remains cool and saves electricity costs.

2.3 99% UV Rejection — The Invisible Shield for Your Skin and Furniture

Beyond heat, UV (Ultraviolet) radiation from the sun is a silent threat that damages both people and belongings inside the house. UV radiation is the main cause of:

• Premature skin wrinkling, melasma, freckles, and increased risk of skin cancer.
• Fading and cracking of wood and leather furniture.
• Fading of curtains, carpets, and framed artworks.
• Swelling or discoloration of wood and laminate floors.

Every series of Maxxma’s Label No. 5 certified window films can filter out up to 99% of UV rays — equivalent to sunscreen with SPF 1000+, but working 24 hours a day without you needing to reapply. It protects everything behind the glass, not just your skin.

3. ROI & Value Calculation — How Much Can You Really Save with No. 5 Film?

3.1 How It Works — How Heat Rejection Film Reduces AC Load

The principle behind window film reducing electricity bills is straightforward: When sunlight passes through glass, heat energy (primarily Infrared or IR radiation) enters the building and raises the temperature. The air conditioner must work harder to bring the temperature down to the set level — and this is where high electricity bills come from. Label No. 5 window film acts as a “Heat Reflecting Shield” — blocking IR rays and reducing the amount of heat entering the building from the start. The AC doesn’t have to work as hard, compressor cycles are reduced, and the lifespan of the AC is extended.

💡 Note: The above calculations are estimates based on industry averages. Actual results depend on the direction of the house, the number and quality of existing glass, the type of film chosen, and the electricity consumption habits of each household.

4. Maxxma Building Film Series — No. 5 Architectural Films for Every Energy-Saving Need

Maxxma Film is the leader in architectural window films in Thailand, having received the Label No. 5 certification from the Ministry of Energy for 4 consecutive years. We offer various series of architectural films that meet the SHGC ≤ 0.45 criteria, catering to homes, condominiums, offices, and commercial buildings.

4.1 Ceramic Series — Ceramic Film for a Cool and Beautiful Home

Nano Ceramic Film UV400 Independent Plus is a premium-grade film that uses nano-ceramic particles to filter heat while maintaining the clarity and natural feel of light. You can see the outside view clearly without color distortion. It’s perfect for homes that want to preserve their views and aesthetic appeal. Key features: 99% UV rejection, high heat rejection with SHGC below 0.45, zero metal (no interference with 5G/Wi-Fi signals), and a lifespan of 10-15 years.

4.2 Nano Carbon Ceramic Series — Advanced Innovation for Maximum Energy Savings

The Nano Carbon Ceramic Series is Maxxma’s highest heat-rejecting architectural film. Combining nano-level carbon and ceramic technologies, it delivers very low SHGC values (≤ 0.35) while maintaining satisfactory VLT. It’s ideal for buildings requiring maximum heat reduction, such as office meeting rooms, west-facing glass buildings, or homes desiring maximum coolness without relying on heavy curtains.

4.3 Building Safety Film — Double Protection: Heat Rejection + Shatter Resistance

In addition to energy savings, Maxxma’s Building Safety Film adds safety to your home and building. The safety film holds glass together when impacted, preventing injuries from shattered shards and deterring theft. It’s suitable for homes with young children, the elderly, or buildings needing extra security measures.

4.4 Comparison Table of Maxxma Films that Pass the No. 5 Criteria

5. Checklist for Choosing No. 5 Film — 7 Things to Know Before Installing

• Verify if it truly has the Label No. 5: Ask to see the certificate from the Ministry of Energy and the SHGC values tested by standard laboratories. Maxxma has documentation for every series.
• Choose a film suited to the sun’s direction: South and west-facing windows receive the strongest sun. You should choose a film with a low SHGC (≤ 0.35) like Nano Carbon Ceramic. For north-facing windows with weaker sun, you can use films with a higher VLT.
• Consider the VLT value as well: Don’t choose a film that rejects heat well but makes your house pitch black. Consult Maxxma experts to find the right balance between SHGC and brightness for your lifestyle.
• Calculate total budget vs. value: Don’t decide based on the lowest price alone. Cheap films might not have the No. 5 label or may have a short lifespan. Maxxma films come with up to a 7-year warranty.
• Choose professional installers: The best film is useless if installed incorrectly. Maxxma has a team of expert installers specializing in architectural films with over 20 years of experience.
• View film samples before deciding: Request to see film samples at your actual site. The light and perspective of each house are different. Seeing it with your own eyes is the best way to decide.
• Ask about warranty and after-sales service: Maxxma offers up to a 7-10 year warranty on architectural films with comprehensive nationwide after-sales service.

6. Frequently Asked Questions about Label No. 5 Energy-Saving Film (FAQ)

7. Summary — Why Maxxma is the Best Choice for Label No. 5 Energy-Saving Film

The Label No. 5 is more than just a symbol — it’s a guarantee from the government that the product truly helps you save energy. When this standard is applied to architectural window films, the result is a cooler home, significantly lower electricity bills, and a highly worthwhile long-term investment.

Whether you own a detached house, condominium, office, or commercial building, Maxxma has the right window film solution for you. We provide expert advice and price estimates free of charge.