• Southminster Presbyterian Church chose GThurm windows from Graham Architectural Products.
• GThurm high-efficiency windows are the first American-made, architecturally rated windows (AW) to feature thermal transmission measures as low as U 0.15 (R 7) using readily available insulating glass.
• Steel casement windows, originally installed with a fin that goes between the exterior stone and interior block wall, required an elaborate removal process

After nearly half a centry of use, Southminster Presbyterian Church’s steel window frames and single glass pane windows were in deplorable condition. “About all they did was keep the rain and snow out but they let in all the heat and all the cold all of the time,” said the Rev. Dr. Daniel B. Merry, senior pastor.