Replacement Windows Discussion Board Forum

The Gorell 5300 is the finest vinyl window design ever created. Very similar to the Vekaplast DH1WW fabricated by Alside as the Ultramax or Sheffield, Gorell rdesigned all the shortcomings. By changing the pocket sill to a sloped sill and moving the glazing beads to the exterior in addition to addin...

Center of Glass = All areas of an I.G. unit excluding that area which is
2-1/2" from the edge.

Super Spacer has excellent warm edge properties and flexability to move with the convex / concave pressures during climate extremes. The chink in the armor is that it requires a backbedded butyl sealant behind it. The same butyl sealant and the same application process that has been in use for the l...