Reflective Glass

 

Reflective glass is one of the many types of glasses produced for buildings’ exterior designs.

This particular type of glass is based on one-way sight concept, making activities inside the building invisible

to those looking from the outside of the building. Furthermore, reflective glass prevents UV rays from entering your room.

Intan’s reflective glass is available in five different colours: brown, dark blue, dark grey, green and silver,

whereas the available sheet thickness are 5mm, 6mm, and 8mm.

 


PERFORMANCE DATA

 

Colour

Type

Thickness

(mm)

Visible Light

Solar Radiator

U-Value

Shading

RHG

Trn

Ref (%)

Trn

Ref

Abs

Kcal/m²hºC

Coefficient

Kcal/m²h

(%)

Out

In

(%)

(%)

(%)

W-1

S-2

*2,3

Silver

SST-MS

5

7

30

33

12

26

60

4.60

4.45

0.29

192

Dark Blue

SST-TDB

5

7

31

37

4

20

76

4.27

4.20

0.23

157

Dark Green

SST-IGR

5

8

19

32

6

11

83

4.60

4.62

0.29

193

Dark Grey

SST-ADG

5

5

15

37

8

17

79

4.27

4.22

0.24

163

Brown

SST-MBR

5

6

12

34

7

14

79

4.60

4.59

0.29

193

 

 Note:

·         Trn: Transmittance

·         Ref: Reflectance

·         Abs: Absorption

·         RHG: Relative Heat Gain

·         #1 Kcal/ m²hºC: 1.163 W/m²ºK

·         1 Kcal/ m²hºC: 0.205 BTU / hrft²ºF

 

ASHRAE

 

W-1

S-2

Outdoor temperature

18°C (0°F)

32°C (89°F)

Room temperature

21°C (70°F)

24°C (75°F)

Outdoor Wind Velocity

6.7m/s (15 mph)

3.3m/s (7.5mph)

Indoor Air Velocity

0 m/s (0 mph)

0 m/s (0mph)

Solar Intensity

0 Kcal/m²hr

672 Kcal/m²hr

 

 

INSPECTION GUIDELINES FOR REFLECTIVE GLASS                                                    
                                                    

Intan Reflective Glass offers you several choices of coated glass. Our final product can be expected to meet the following specification criteria when viewed against a bright, uniform back ground, at an angle perpendicular to the coated glasses surface.

     

1. Pinhole Inspection                                                    


Pinholes - Glass is to be inspected from a distance of six feet (1.8 mm). Pinholes larger than 1/16" (1.5 mm) in diameter shall not be allowed. Larger clusters  or close spacing of smaller pinholes should not be allowed in any area which a person would normally look through. Clusters are allowed out of the normal viewing area.                                                    
                                                    
2. Reflectance and Transmission Inspection                                                    

Uniformity - When coated glass is viewed a minimum distance of ten feet (3.0 m), a slight variation in colour, reflectance and transmission may be observed. This is considered acceptable.                                                    
                                                    
3. Scratch Inspection                                                    

Scratches - Glass shall be inspected from a distance of ten feet (3.0 m). Scratches up to three inches (75 mm) is acceptable. Larger scratches shall only be allowed within three inches from the edges of the glass. Concentrated scratches or abraded areas are not to be allowed.                                                    
                                                    
4. Spandrel Glass Inspection                                                    

Spandrel glass is to be viewed from a distance of fifteen feet (4.6 m) under natural daylight condition. Colour and reflectance may vary slightly when viewed against a dark, uniform background and is considered acceptable. When a spandrel unit is viewed under the same condition, pinholes and scratches viewed in reflectance are considered acceptable if they are not obvious.