Dual Finish (Two-Tone) Option

Some window and door products are limited to one color choice. Due to their “pour and de-bridge” type of thermal break, they are single extrusions.  Thermally strutted products like our Series S3000 are not limited to a single color or finish selection.  These products use a polyamide style thermal break that can join two separately finished interior and exterior aluminum extrusions together.  This allows separate finish selections for the interior and exterior of the window or door.  In addition to the advantage of having different colors interior and exterior, this also allows for different performance grades of finishes to be used which could be a cost savings for the project.  The interior surfaces are not exposed to the elements and may not require the same level of performance required for the exterior.


Polyamide thermal struts allow for different interior and exterior finishes while providing superior U-factors.

Graham Architectural Products window and door Series that begin with “GT” or “S” employ this polyamide thermal strut technology and allow a dual finish option.  Contact your Graham sales rep to find out more.

The following Graham Series offer this technology and a dual finish option:

GT0200 – Horizontal Sliding
GT1400 – Fixed
GT2200 – Double Hung
GT2200 – Single Hung
GT6200 – Casement (Inswing)
GT6200 – Casement (Outswing)
GT6200 – Projected (Inswing)
GT6200 – Projected (Outswing)
GT6200 Fixed
GT6700 – Casement
GT6700 – Projected
GT6700 – Fixed
GT7700 – Terrace Door
GT7800 – Dual Action
SR6700 – Casement
SR6700 – Projected
SR6700 – Fixed
S0900 – Sliding Glass Door
S1400 – Fixed
S1500 – Fixed
S2200 – Double Hung
S2500 – Double Hung
S3000 – Double Hung
S6300 – Casement
S6500 – Casement
S6500 – Projected
S6500 – Fixed
S6800 – Casement
S6800 – Projected
S6800 – Fixed
S7400 – Terrace Door