Download - ECCO Supply

More documents

Recommendations

Info

HOME Ventilation Guide Attic Ventilation The advantages of air movement beneath the roof. It is essential to include proper attic ventilation when building a house – local building codes will provide guidance for your area. Attic ventilation is an important factor in preventing weather-induced home deterioration. Reduction of heat buildup, which can reach 150°F on hot summer days, and moisture in the winter are the two main goals of attic ventilation. Heat and humidity can weaken the home’s structural integrity and cause interior finish, drywall and exterior paint failures. The high cost of energy, home repairs and maintenance should be incentive enough for homeowners to properly ventilate their attics. The purpose of attic ventilation is to equalize temperatures inside and outside the attic throughout the year. In summer, this equalization of temperatures helps make the living areas beneath the attic cooler and more comfortable; this can help reduce how hard the air conditioner needs to work, thus lowering its operating costs. This equalization helps reduce heat that will distort and destroy roof shingles and cause the premature deterioration of roof boards, sheathing, siding and insulation. In winter, equalizing attic and outside temperatures helps to prevent moist air, which seeps into cold areas, from condensing on the underside of the roof surface, beams and rafters. This condensation can cause mildew, rotting of wood and excessive rusting of fasteners and other metal components of the roof structure. Excess condensation creates wet insulation, For better solutions in home ventilation, choose Continental Fan! A comfortable home requires good ventilation, and Continental Fan offers remote mounted silent fan solutions to help create an ideal home environment. AXC In-Line Duct Fans and EXT External Mount Fans deliver quiet, efficient and superior ventilation. Bathroom Exhaust - Available in one or two ventilation points. - Ideal for wet applications, and may be installed directly over a shower. Range Hood Exhaust - Powerful and silent range hood exhaust. - Improve efficiency of an existing range hood by applying as a booster fan. Dryer Boosting - Improved energy efficiency and less wear & tear on the dryer. - Ideal for use in interior laundry room applications. Duct Boosting - Designed to boost airflow through long or complex duct runs. - Ideal for areas that are difficult to heat or cool. A full range of accessories and fan kits are available to suit most applications. USA: Continental Fan Manufacturing Inc. Tel: 800-779-4021 Web: www.continentalfan.com Canada: Aeroflo Inc. Tel: 905-890-6192 Web: www.aeroflo.com 28 H V G www.hvi.org circle 70 on reader service card
which diminishes its effectiveness and in sufficient quantities may damage interior ceilings. Proper attic ventilation can also help prevent the formation of “ice dams” in the winter by equalizing the indoor and outdoor temperatures. Ice dams occur when snow hits a part of a home’s roof warmed by heat loss from the interior. The snow then melts and freezes at the eave area of the roof, where it’s colder. Here the mounds of ice and snow often drip and form icicles. Powered and static attic ventilators Effective attic ventilation requires air to exit the attic at or near the peak of the roof and replacement air to be drawn in under the eaves of the house. This can be achieved using a combination of static vents, or the ventilation can be given a boost using powered attic ventilators (PAVs). PAVs pull air out of the attic and are usually equipped with automatic thermostats, which activate the unit as the temperature rises above the setpoint. They are usually placed near the roof peak on the back slope of the roof, where they are less visible from the street, or high on a gable end wall. A humidistat may also be used to start the unit automatically when the humidity rises above the selected setting in the winter. Static vents, both intake and exhaust, are not electrically powered and depend on natural airflow for ventilation. Intake vents are necessary whether using a static exhaust system or a powered attic ventilator. Static vents include ridge vents, roof vents, gable vents and turbines. • Ridge vents are installed at the peak of the roof, often along its entire length. Roof vents cover holes cut in the roof near the peak to let air escape and to prevent rain, snow and insects from entering the attic. • Gable end vents, generally triangular, rectangular or round in shape, have either adjustable louvers to fit a wide range of roof pitches, or fixed louvers for a specific pitch. They are mounted at the highest point of the gable. • The intake vents, necessary to balance the systems, are installed under the eaves in the soffits. To be effective, both intake and exhaust vents must be present to promote air movement. Static ventilators are also available for installation in sidewalls to reduce peeling of siding paint and moisture damage. Guidelines for determining which type of static vents best fit a particular application are available from HVI member companies. ■ circle 71 on reader service card www.hvi.org H V G 29
Page 1 and 2: THE GUIDE TO HOME VENTILATION & IND
Page 3 and 4: IN RESIDENTIAL VENTILATION Contents
Page 5 and 6: Improve the Indoor Air Quality in Y
Page 7 and 8: circle 53 on reader service card
Page 9 and 10: what’s lurking in your bathroom?
Page 11 and 12: Figure 1. Typical conditions found
Page 13 and 14: www.ul.com TOTAL PEACE OF MIND. DO
Page 15 and 16: Please welcome the newest member of
Page 17 and 18: Venmar AVS and HVI: Partnership for
Page 19 and 20: from moisture generated by boiling
Page 25 and 26: HOME Ventilation Guide other. A con
Page 29: with low energy cost. These efficie
Page 33 and 34: performed and the location of the r
Page 35 and 36: A smaller fan can effectively cool
Page 37 and 38: AD INDEX The following companies pr
Page 39 and 40: Fresh Ideas in Fresh Air Ventilatio

Download - ECCO Supply

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?