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A roof is a primary factor in any home’s curb appeal. But more important, it serves a critical role in maintaining or improving energy efficiency, managing water and moisture, and guarding against damage caused by high winds and fire.
Recent upgrades to national building and energy codes place even more onus on remodeling and re-roofing contractors to deliver roofs that perform those functions at an even higher level, prompting roof manufacturers to up their game with better products and a more systematic approach to residential roofing.
Energy Efficiency. Few people think of a roof having much impact on a home’s energy demand … until you consider that it bears the brunt of the sun’s heat every day. Solar heat can penetrate the roof into the attic, resulting in temperatures that far exceed the air-conditioned living spaces below. The hot air in the attic seeps into the air-conditioned spaces through gaps in the ceiling causing a home’s cooling system to work harder to keep the house comfortable.
The roofing industry’s response to that dynamic has been the advent of so-called “cool roof” shingles. Available in asphalt composition, concrete tile, metal, and other non-wood roofing finishes, cool roofs are lighter in color to reflect the sun’s heat away from the roof. The Cool Roof Rating Council and federal Energy Star program both verify the reflective quality of various roof finishes to assure their performance.
In addition to the shingles or panels, a remodeled cool roof can also be ventilated from underneath. Simply, the roofing finish is held off its plywood deck with battens. Vents along the ridge and eave enable air to circulate under the shingles, cooling them from below and insulating the attic from solar heat gain. This circulation also vents incidental moisture from the roof deck, mitigating potential problems.
Managing Water. Obviously, the roof is a home’s first line of defense against rain and snow. But equally important is the roof’s capacity to effectively and quickly shed water runoff away from the house.
The best practice to manage water is to properly install the shingles and appropriate flashing components per the manufacturer’s specifications and standards. Flashings should be constructed along valleys and other V-shaped or odd roof intersections, at the eave corners (called “kick-outs”), and at every penetration, such as vent pipes, chimneys, and skylights. Water should flow down the roof to a gutter and downspout system, which expels the water harmlessly away from the home and its foundation.
- A home’s roof also is an important component in high winds or a wildfire. Recent advancements in building products, practices, and codes have made today’s roof even more resilient against these forces of nature.
In addition to using the proper ring-shank nails and fastener spacing to secure a roof’s plywood deck to the roof trusses, peel-and-stick, water-resistant membranes between the deck and conventional roofing felt paper are an effective shield against damage. This would be important should the shingles become broken or loose during a storm and allow wind and water to reach the deck.
Of course, properly fastening the roofing finish to the deck is critical to withstand damage, while a non-combustible material (basically anything non-wood) will help stem the spread of flames should a fire break out.
By reducing the potential for wasteful energy use, moisture problems and property loss, today’s roofing systems often earn discounts on home insurance premiums because they present a lower risk to insurance carriers.
As a professional remodeling contractor, it is our responsibility to deliver the best project possible. In addition to ensuring the proper installation of every roofing system, we also investigate and incorporate additional methods and materials that improve the performance of the roof and our homes overall.
Todd Allen Miller, RA-PP
QMA Design+Build, LLC
5000 Boardwalk, Suite 2
Ventnor, NJ 08406
NJ New Home Builder License #037561
NJ Home Improvement Contractor #13VH01107300
(609) 822-4949 – phone
(609) 822-4429 – fax
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