Morrison’s 1800 Series uses the REHAU ASPEKT system for casement, awning and fixed windows. Combine ventilation and fixed glass in a continuous frame for new construction or renovation.
Casement, awning & fixedTriple weather sealsUp to 35 mm glazingContinuous-frame layouts
1800 Series Residential Collection
How It Works · Exterior View
See How Your Window Opens.
Choose an operation and select Open. These simplified examples show movement, not exact product profiles or panel dimensions.
This series can be configured as a side-hinged casement or a top-hinged awning window. A finished window operates according to its selected configuration. Confirm sizes, hardware and layout with Morrison.
Exterior view · Hardware omitted
Casement
Closed
Illustrative handing and opening distance. Fixed panels stay stationary. Confirm the final configuration for your opening.
Screen options, including compatible FlexScreen configurationsGlass package and spacer selectionInterior and exterior finishes — confirm current availabilityHardware, dimensions and installation details coordinated for your project
REHAU-published benchmarks for the system. Results vary with size, configuration, glass, reinforcement and hardware.
System performance benchmarks
Structural (NAFS)
Up to CW-PG100
Acoustical (ASTM E90)
Up to STC 40
U-value — simulated
Down to 0.17
REHAU webpage benchmarks. The April 2020 sheet instead lists CW-PG70, simulated thermal value 0.18 and OITC 34. These are different published summaries, not a single tested Morrison assembly.
Thermal figures are reproduced in the manufacturer's published notation; confirm units and the exact assembly report before specification. STC and OITC are ratings, not guaranteed reductions in site noise. These summaries do not establish code, impact or Passive House compliance for an order.
