Fibertec 400 Double-Hung Tilt
Is anyone familiar with the Fibertec 400 Double-Hung Tilt Windows: Standard Series windows? Are they good? I could not find their technical specs. The salesman told me: u-factor is 0.29, shgc 0.27 and vt 0.50 which should more or less work for me because I'm in the North Central climate zone. Is Fibertec a good company? Are these particular windows good?