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ah!38 excels as an exterior opening system comprising a balanced combination of thermal
and acoustic behavior, suited to all climates.


ah!38 offers great flexibility in the modular composition of openings, including opening corner solutions, pocket sliding configurations, curved layouts, tilted spans and retractable mosquito nets. The alternatives come in a wide range of formats such as sliding, vertical sliding, pivot and tilt-turn units. ah!38 also includes a variety of add-ons, finishes and it can be completely automated. It is a system that allows double glazed surface areas of up to 19m², or triple glazed of up to 6m². Both options use 20mm vertical profiles.

window anatomy

performance up to

thermal coefficient

Uw = 0.816W/m².K

(Ug = 0.47W/m².K)

water tightness

Class E900


HVHZ4 / 50 psf

air tightness

Class 4

sound insulation


wind resistance

Class C5



opening possibilities

all the ah! goodies