Regal’s published image · published fixed-window example.
Window profiles
Regal 4500
A shallower frame for individual openings.
- Frame depth
- 115 mm / 4½ in
- Thermal break
- 13 mm · fixed window
- Application
- Individual wall openings
Main benefits
Less frame depth
At 115 mm, this is the shallowest of these three window series. The wall construction determines whether it fits.
Different finishes, inside and out
The thermally separated frame allows different interior and exterior finishes.
Serviceable seals
Regal specifies replaceable compression seals and glazing installed from the interior.
Regal’s public glazing notes for this series are inconsistent. We confirm the glass build-up for your exact opening before quoting.
Regal’s product information