Roller shades get a bad rap

Who must replace windows after cracks are discovered?

DEAR BARRY: I am a licensed contractor and recently installed some roller shades above the windows of a new home. About two weeks ago a few of the glass panes started cracking — some at the top and some at the bottom. The window supplier says this was caused by our shades being closer than 3 inches from the windows.

According to the shade manufacturer, the shades could be touching the glass without causing cracks. The manufacturer has been in business for more than 40 years, and they say they’ve never had this complaint before. But the window company has convinced the homeowners that we are to blame, and they are demanding that we replace the windows. What do you recommend that we do? –Tom