Home Insulation

Window awnings can cut energy costs by reducing  solar heat gain in the summer by up to 65% on south-facing windows and 77% on west-facing windows. You can use an awning to shade one window or have an awning custom-made to shade the entire side of your house.

In the past, most awnings were made of metal or canvas, which need to be re-covered every five to seven years. Today, awnings are made from synthetic fabrics—such as acrylic and polyvinyl laminates—that are water-repellent and treated to resist mildew and fading. Whatever the fabric, you should choose one that is opaque and tightly woven. A light-colored awning will reflect more sunlight.

Awnings require ventilation to keep hot air from becoming trapped around the window. Grommets (eyelets) or other openings along the tops and sides of an awning can provide ventilation. The awning may also open to the sides or top to vent hot air.

A small, horizontal awning will completely shade a south-facing window during the summer. An east- or west-facing window needs an awning that extends down to cover a large percentage of the window. Sideless awnings, called Venetian awnings, can be adjusted as the angle of the sun changes. Venetian awnings, however, are usually not effective at blocking direct sunlight on south-facing windows. Hood awnings with sides added to block out additional sun are more effective. Hip awnings project out and down to accommodate casement windows that open outwards.

You can roll up adjustable or retractable awnings in the winter to let the sun warm the house. New hardware, such as lateral arms, makes the rolling up process quite easy.

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Cut energy costs by making sure your attic is properly insulated and vented. Because heat rises, the attic is the first place that you should check to make sure that it’s adequately insulated. There should be at least 12 inches ( preferably 15 inches ) of insulation in the attic.

Insulation is given an R value to indicate how good it is. For every 1 inch of insulation there is an R value of 3. Therefore 15 inches of insulation is R 45. That is the minimum you should have to keep the heat from escaping. The temperature in the attic should be about the same as the temperature outside.

A properly vented attic will decrease the possibility of condensation moisture to collect on the rafters or on the inside of the roof. One or more whirlybirds and a  few vents should do the trick. Blown insulation is widely used as attic insulation for several reasons. A professional home insulation contractor can quickly blow in one continuous blanket at the proper depth to achieve the recommended R45 insulation for attics. Many contractors offer pricing that includes the insulation itself and installation: usually less than the retail price homeowners would have to pay for the insulation alone. In addition, a properly installed continuous blanket of blown insulation does a better job at at stopping air leaks and subsequent heat loss.

Blanket or batt insulation meticulously installed will be better than a continuous blanket of blown insulation. However, any flaws or errors during installation will decrease the performance. If you have a trap door in the ceiling to get into the attic, make sure it also is properly insulated. Build a cardboard box 15 inches high around the inside edge of the door and fill it with insulation. Make sure there is a good seal where the door meets the ceiling.

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