5 Classic – Adaptation Frame – Extruded Nailing Fin
What is it?
- The 5 Classic window system uses a 5-chamber PVC profile with a 2-3/4" installation depth.
- An adaptation frame (sometimes called an “adaptation frame 1-3/8") allows you to install the new window profile into an existing opening or existing frame with minimal demolition.
Key features and benefits
- Height or thickness of 1-3/8" (the 1-3/8" is specified in the accessory list) - this indicates the depth/size of the adaptation frame.
- Enables window replacement without full removal of the original frame: helps retain existing frame/structure and speeds up installation.
Key features and benefits
- When replacing windows in renovation or retrofit situations, an adaptation or renovation frame means less disturbance to the wall or interior trim.
- It keeps the same opening dimensions (often) and reduces the need for full re-framing or plaster repair.
- Especially beneficial where facade finish must remain intact or in historic/commercial buildings.
