National Technical Reference Manual (TRM) List Windows and Window Attachments
National Technical Reference Manual (TRM) list for primary and storm windows, cellular shades, solar screens, and window films. This list highlights TRM’s for more than 20 states across the United States that include window calculations.
ENERGY STAR – Why It Matters
ENERGY STAR, one of the most successful voluntary programs in U.S. history, has become the international standard for energy efficiency. Since its launch in 1992 by the U.S. Environmental Protection Agency (EPA), ENERGY STAR and its partners have saved Americans more than $500 billion in energy costs and prevented 4 billion metric tons of greenhouse […]