Review Film Performance Comparison - VLT over 10% up to 20%

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Nine of the ten films are made in the USA (Hanita is made in Israel). All are WERS Energy Rated and have similar performance - allowing 14% to 18% Visible Light to pass through the films, block 99% UV and block between 52% and 72% of the heat. The main difference is the Johnson Films DN15, Smart Films HP15 and the Hanita Natura 15 are neutral shaded films designed to preserve a natural view out of a window and are constructed using the latest sputter coating or electron beam coating technologies. The others are dual reflective films designed primarily to reduce internal reflection, particularly at night.

WHAT TO BUY?

  • Best for heat - Dual reflective films: SunTek DS15 which blocks 75% of the heat and has a external VLR of 36%.
  • Best for heat -Neutral films:Smart Films HP15 blocks 70% of the heat and a VLR of 24%
  • Good heat reduction and low reflection - Neutral films:The Hanita Natura 15 is the least reflective (9%) and blocks 62% of the heat

FILM

Smart Films

ASWF

SunTek

Johnson Window Films

Hanita

Smart Films

MEP

Johnson Window Films

3M

 

Sunblock 20

Daydream 15

DRDS 15

 NightScape NS15

Natura 15

HP15

Night Series NS18

Daylight Natural DN15

Night Vision 15

 

WERS

Yes

Yes

Yes

No

No

Yes

Yes

No

Yes

 
 

VLT %

16%

17%

15%

17%

16%

14%

16%

18%

15%

 

VLR %

12%

37%

13%/36%

14%

9%

24%

12%

19%

38%

 

% TSER

61%

71%

75%

52%

62%

70%

62%

62%

72%

 

SHGC

0.36

0.27

0.27

na

na

0.29

0.41

na

0.26

 

% UV

99%

99%

99%

99%

99%

99%

99%

99%

99%

 

blocked

 
U value 7.3 6.9  7.0 na na 7.1  7.4 na  7.1  
Film Price $M2 $45.10 $49.50 $55.00 $57.20 $57.20 $58.30 $59 $61.60 $66  

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You pay $38.34

You pay $42.08

You pay $46.75

You pay $48.62

You pay $48.62

You pay $49.56

You pay $50.15

You pay $52.36

You pay $56.10

 
 

NOTES: The performance data shown above is taken from data published on each company website and published company literature. The data is presented to assist consumers for comparison purposes only. The data and trademarks remain the property of their owners.

  1. WERS – Window Energy Rating Scheme – Film performance data has been independently tested and verified as true (no point in comparing performance if the data for a film has not been confirmed to be true)
  2. VLT – Visible Light Transmitted (less than 20% VLT will make a room “feel” darker)
  3. VLR - Visible Light Reflectance (a measure of how “shiny” or “mirrored” the window appears – clear glass has a VLR of about 8%. As VLR increased above 8% the window appears more reflective
  4. TSER – Total Solar Energy Rejected (indicates the films heat rejecting ability – more is better to reduce heat)
  5. SHGC – Sikar Heat Gain Coefficient (a value ranging from 1.00 to 0.00 showing the solar heat that is transmitted through the glass – lower is better)
  6. UV – Ultra Violet light (the major cause of sun damage and fading – more blocked is better to reduce fading)
  7. U value - a measure of how effective a material is as an insulator. The lower the U-value, the better.
 

(a) MEP state on their website that the performance date provided is derived from film applied to 6mm clear glass and not 3mm clear glass that is normally used for film performance testing (WERS ratings use 3mm glass) – film installed   on 6mm clear glass will provide a higher % heat blocked than the same film installed on 3mm clear glass). 6mm clear glass is frequently used in commercial buildings.