Energy and light transmittance data

With the multitude of designs available for modern architectural glazing, laminated safety glass with colourless and coloured TROSIFOL PVB films has outstanding light transmittance and energy properties. The light transmittance of the laminated safety glass is affected by the type and concentration of the pigments and dyes finely distributed within the film, as well as by the colouration of non-pigmented or mass-pigmented glass. These additives filter out certain radiation wavelengths selectively, thereby reducing light and energy transmittance. The glass thickness, as well as possible functional coatings on the glass, also have a decisive effect. The light transmittance curves of glass laminated with TROSIFOL BG in the wavelength range of 250 - 2500 nm (far UV to medium IR light) and 2500 - 7500 nm (medium to far IR light, low-energy heat radiation) are shown below as an example.

TROSIFOL BG R10/15*

Film thick- ness	Colour	Light transmit- tance	Light reflectance [8° angle]	Energy transmit- tance	g-value	Shading coefficient	UV trans- mittance
0.38	Clear	87	13	76	76	95	1.90
0.76**	Clear	87	13	74	76	94	0.25
1.14	Clear	87	13	73	74	93	0.10
1.52	Clear	87	13	73	74	93	0.05
2.28	Clear	86	13	71	72	91	0.03

0.38	Sand white	70	9	62	66	83	1.57
0.38	White translucent	60	11	52	59	73	0.96
0.38	Light blue-green	73	11	64	68	85	1.60
0.38	Ocean blue	76	11	68	71	88	1.70
0.38	Medium bronze	55	8	52	58	73	0.10
0.38	Grey	45	7	56	62	77	0.09
0.38	Asahi grey	42	7	51	58	73	0.68
0.38	Light brown	55	8	50	58	72	0.86
0.38	Medium brown	24	6	27	41	51	0.20
0.76	White translucent	59	11	50	57	71	0.07
0.76	Grey	44	7	53	60	75	0.00
0.76	Medium bronze	53	7	50	57	72	0.00
0.76	Bronze	36	7	41	51	63	0.04
0.76	Light blue-green	72	11	64	68	84	0.16

* LSG with 2 x 4 mm float glass
All details in %
** BG R10 only available in this thickness

TROSIFOL BG R10/15 WITH WHITE GLASS (LOW IN IRON OXIDE)*

Film thick- ness	Colour	Light transmit- tance	Light reflectance [8° angle]	Energy- transmit- tance	g-value	Shading coefficient	UV trans- mittance
0.38	Clear	90	14	82	84	105	2.4
0.76**	Clear	90	14	81	83	103	0.3
1.14	Clear	90	14	80	82	103	0.1
1.52	Clear	90	14	79	82	102	0.1
2.28	Clear	89	14	77	80	101	0.1

* LSG with 2 x 4 mm white glass
** BG R10 oly available in this thickness
All details in % Back

This glossary is available in German language only.

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Product-Information "Architecture"