MasterWall

Performance

Energy

Thermal insulation - Uw Double

0.23 Btu/hr.ft².°F

Thermal insulation - Uw Triple

0.16 Btu/hr.ft².°F

Comfort

Air tightness

0.01 cfm/ft³

Water tightness

15 psf

PG rating

60

Acoustics STC

50 dB

Acoustics OITC

44 dB

Properties

Max. dimensions & weight

Max. intertia mullion - Ix

220.289 cm⁴

Max. intertia transom - Ix

237.903 cm⁴

Glazing

Glazing method

Dry glazing - Siliconized glazing - Internal glazing - Glazing bead