Posted on: 18 May 2017
You may have heard a rumor that all you have to do for an eco-friendly roof is to replace it with a more reflective material. It's true that that can do some good, but for a more comprehensive and effective approach, you need to take into consideration these four factors. Work with your contractor to include them in your roof design.
1. Reflectivity and reflective barriers
First of all, yes, reflectivity is important in warm climates. It helps repel some of the sun's heat rather than absorbing it all. Reflectivity isn't just important for your roof's surface, though; you can also install a radiant heat barrier just under the roof (stapled to the undersides of the rafters, but not touching the underside of the roof itself). The heat that radiates through the roof will then be reflected back out through the roof as soon as it transfers to the air and hits the reflective radiant heat barrier.
Increasing insulation is something every eco-conscious homeowner should do. The less insulation your house has, the more vulnerable it is to the fluctuating temperatures outside. And the more heat or cold your house leaks, the more it's contributing to environmental disruptions such as the urban heat island effect. So beefing up insulation is always a good idea, but it's especially crucial to beef up attic insulation if you're hoping to reduce heat gain from your roof.
Attic ventilation is critical not only for letting warm air out of the attic, but also for keeping the roof healthy and increasing its longevity (and the healthier you keep your roof, the less often you have to replace it, which is also a more eco-friendly way to live). However, improper attic ventilation can actually waste energy as well. So if you do use attic fans, be sure to seal up any gaps in the ceiling (such as where light fixtures are situated) as much as possible and be sure you have multiple vents in the attic so the fan can pull air in through one vent as it pushes air out through the other.
4. Materials used
Your materials also play a significant role. If you use roofing made from virgin materials, you're depleting the Earth's resources, especially if the materials used are non-renewable. Instead, choose materials with a high level of recycled content, or even use pre-owned materials that can be re-used without any processing (such as reclaimed slate or clay tile).
For more information, you will want to contact a company such as David Saner Roofing.Share