Morrison Windows Ltd. · Tilt & Slide Doors
Morrison’s REHAU System 4500 tilt-slide doors combine top-tilt ventilation with a sash that slides parallel to fixed glass, preserving usable floor space.
Product Overview
Tilt & Slide Operation
Tilt the top of the sash for ventilation, or slide the panel parallel to the fixed glass for access.
Supplied product illustrations show different viewing sides. Explore the door photographs and details in the product gallery below.
Looking for swing & French doors? →Exterior View
Choose a layout for your opening. Arrows show sliding direction; panels without arrows are fixed.
Illustrative layouts, not fabrication drawings. Confirm dimensions, operation, hardware and divided-light details with Morrison before ordering. Shaped and combined units require project-specific review.
Manufacturer Reference
REHAU-published benchmarks for the system. Results vary with size, configuration, glass, reinforcement and hardware.
| Structural (NAFS) | Up to CW-PG55 |
|---|---|
| Acoustical (ASTM E90) | Up to STC 40 |
| U-value — simulated | Down to 0.18 |
| Impact — qualifying assemblies | Up to DP-80 |
REHAU tilt-slide webpage benchmarks. The older sheet lists CW-PG80 and OITC 31; confirm the applicable report rather than combining published maximums.
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.
View brochure ↗Product Gallery
Planning Your Project
Tell us what you are building or replacing. Our team can help confirm sizing, configurations, glass and design options for your project.