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neutral 70/37

Top class solar control glazing


ipasol neutral 70/37 is a solar-control glazing with the right combination of values.

With a light transmittance of 70 % and a solar factor of 37, this glazing has a selectivity of 1.89.

Structure % % % % % W/(M².K)
neutral 70/37 τv ρv αe g SC Ug-Value
4| - 16 Ar 90% - 4 70 12 29 37 0.43 1.0

LT: Light Transmission; LR: Light Reflection; UV: Ultraviolet transmission; EA: Energy Absorption; SF: Solar Factor.


  • The | symbol indicates the position of the solar-control coating.
  • The ¦ symbol indicates the position of a low-emissivity coating (iplus Top 1.1).
  • The ! Symbol indicates the position of a low-emissivity coating (Planibel G)

The data are calculated using spectral measurements that are conform to standards EN 410 (1998).
The tolerance of published data with respect to photometric properties is +/- 3 points.
The U-value (formerly k-value) is calculated according to standard EN 673.
The emissivity measurement complies with standards EN 673 (Annex A) and EN 12898. The U-value tolerance is +/- 0.1W/(m²K).
This information is no evaluation of the risk of glass breakage due to thermal stress.

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