Back at the governor's mansion, some gorgeous silk drapes are being hung in the ballroom, and Bob visits the shop where they are made.

Bob and interior designer Leslie Curtis discuss the window treatments in this episode. Curtis is working in the dining room, where Kevin Murphy from Smith + Noble is on site finishing up the installation of the company�s window treatment hardware. Curtis chose a twisted rod made from mahogany and located the curtain rod brackets outside of the window�s frame for a better view of the home�s landscaping. The curtains are shipped with the rings attached and are ready to hang once they are unpacked. Bob screws the first finial into the predrilled hole in the curtain rod and slides the rod through the curtain rings. Then, the second finial is attached and the rod is simply placed on the wall brackets. Curtis ordered curtains slightly long to create a slight puddle of fabric at the floor for a more formal look.

Here s another great tip from BobVila.com. Before you add to your electric bill trying to keep cool this summer, add something to your windows instead. The first principle of passive cooling is to keep the heat from getting inside. Even though it seems like a wintertime activity, weatherstripping your windows and doors and caulking gaps can really make a difference in summer, too. There are lots of ways to shade your windows from the sun, and if they seem a little old-fashioned, it s because they worked even before there was air conditioning. Large roof overhangs and porches, awnings, shutters and louvers can all be seen on old southern homes. Awnings can actually reduce summer heat gain by up to three-quarters. And you can remove them in winter to let the sunlight in when you need it. Light-colored awnings are best because they deflect more heat. Solar screens are another option. Installed outdoors, they can cut heat gain in half, and you can still enjoy the view. Interior window treatments aren t quite as effective as the outdoor methods, but they re better than nothing. Densely woven fabric drapes, Venetian blinds or roller shades will control some heat gain just by keeping out direct sunlight. Again, lighter colors are most effective. If you re replacing your windows, ask about low-E glass. A low-E, or low-emissivity coating, depending on which surface of the window it s applied to, can keep heat where you want it and keep your costs down year-round. Find out more at BobVila.com: the ultimate home improvement web site! 2008 BobVila.com