With the continuing intense warmth, automobile inside temperatures can soar. Many automobile house owners choose to put in curtains or apply warmth insulation movie (also called window tint) to cut back cabin temperature. What are the professionals and cons of every possibility? And the way must you select authorized and efficient warmth insulation movie given Hong Kong’s strict laws on window transparency? Kwiksure shares the important thing issues to keep in mind when deciding on automotive warmth insulation movie.
Automotive Warmth Insulation Movie vs. Curtains
Each automotive warmth insulation movies and curtains are in style choices for cooling down a automobile. Here is a comparability of their advantages and disadvantages:
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Automotive Warmth Insulation Movie
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Curtains
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Value
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Greater
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Cheaper
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Look
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Adheres on to the glass
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Exterior accent
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Operation
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Strikes with window glass
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Handbook operation
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Warmth Insulation
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Is dependent upon the kind of movie
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Excessive degree of opacity
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Flexibility
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Irreversible as soon as eliminated
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Could be eliminated and put in anytime
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Sturdiness
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5 – 10 years
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2 – 3 years
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Automotive Warmth Insulation Movie Transparency Necessities
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In keeping with Hong Kong’s Street Site visitors Ordinance (Cap. 374) and the Transport Division’s laws, automobile home windows should meet particular transparency necessities. As of April 2023, the newest laws are as follows:
- All home windows (together with the windshield) should have a transparency of 70%, except in any other case specified.
- For automobiles with mirrors on either side, the rear facet home windows of personal vehicles, vans, special-purpose automobiles, and buses should have a transparency of 44%.
- Higher-deck home windows and windshields of double-decker buses should even have a transparency of 44%.
Development of Automotive Warmth Insulation Movie
What precisely is automotive warmth insulation movie, and the way does it preserve the warmth out? Automotive warmth insulation movies (Warmth Discount Window Movies) are constituted of a number of layers of supplies, together with PET (polyester movie), steel reflective coatings, natural dye coatings, scratch-resistant layers, and adhesive coatings. These layers work collectively to dam, mirror, or take in photo voltaic warmth, infrared rays, UV rays, and glare, thereby lowering the cabin temperature of the automobile.
Learn how to Select Automotive Warmth Insulation Movie
Whereas the features of warmth insulation movies are usually comparable, they arrive with numerous specs resembling transparency, warmth rejection price, and glare discount. Moreover noting these values, you must also verify if the movie accommodates steel layers, as steel layers can block digital indicators, affecting gadgets like HKeToll, cell phones, or in-car navigation techniques. At all times seek the advice of with the store earlier than set up.
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Warmth Discount Window Movie Index
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Whole Photo voltaic Power Rejection (TSER)
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Decrease values point out increased transparency. Superior movies might not require darkish tint for efficient insulation; select movies that adjust to authorized transparency necessities.
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Seen Gentle Transmittance (VLT)
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Greater values imply higher UV safety, which helps shield pores and skin and stop inside plastic elements from getting older.
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Ultraviolet Rejection (UV Blocking)
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Greater values imply higher UV safety, which helps shield pores and skin and stop inside plastic elements from getting older.
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Greater values point out higher warmth discount. Infrared rays are a serious supply of photo voltaic warmth.
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Greater reflection ranges may cause extra picture reflection on the glass, affecting visibility.
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Decrease values point out higher glare discount, useful for nighttime driving.
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Helps cut back glass shattering and works equally as security glass.
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Value of Warmth Insulation Movie
Varied manufacturers provide completely different warmth insulation movies, and costs differ based mostly on supplies and set up strategies. Listed below are the approximate prices for various manufacturers (for a four-door automobile, in Hong Kong {dollars}):
Upkeep of Warmth Insulation Movie
Since warmth insulation movie doesn’t adhere completely to the glass edges, frequent cleansing might let moisture and air into the movie, inflicting bubbles and lowering effectiveness. Clear with water and a towel gently. Additionally, if planning to steam-clean the inside, inform the service supplier in regards to the put in movie to keep away from harm.
Transport Division Exemption Software Process
After making use of warmth insulation movie, it’s essential to apply for an exemption from the Transport Division to make sure compliance. With out this exemption, even when the glass meets transparency necessities, it could nonetheless be deemed non-compliant throughout automobile inspection. The exemption includes the next steps:
- Fill out the “Car Exemption Software Type.”
- Submit the shape together with a replica of the automobile registration doc to the Transport Division Car Kind Approval Unit, 1/F, Complete Car Inspection Constructing, 18 Sai Tso Wan Street, Tsing Yi, New Territories.
- The Transport Division will ship a reply letter in about 2-3 weeks.
- Name to schedule an appointment to convey the automobile to the inspection heart for an inspection (no inspection payment required).
- After passing the inspection, you’ll obtain the exemption. Maintain it within the automobile for proof throughout checks.
Supply: Transport Division