Henselstone Window and Door Systems actively sponsors the USGBC (United States Green Building Council) to promote design and use of products that reduce Green House gas emissions.
Weru Corporation has instituted a marketing blitz supporting triple insulated glass windows and doors (R6) with steep discounts. Inquire with your local sales representative for details.
Treated lumber corrodes fasteners and many surrounding metals. Without nailing flanges, Henselstone's tilt and turn window system installs directly into masonry walls and does not require furring of the openings.
This good advise came too late for Ms. Cohen of Palm Beach, Fl who fell out of her third floor apartment trying to clean her out swing casement window. Luckily, thick shrubbery prevented serious injury. We at Henselstone recommend Tilt and Turn windows opening to the inside for easy cleaning!