Alliance Roofing provides a wide array of new roofing systems. Learn more about the types of new roofs we can install on your building.
A cool roof is a roofing system that can deliver high solar reflectance (the ability to reflect the visible, wavelengths of the sun, reducing heat transfer to the building) and high thermal emittance (the ability to radiate absorbed, or non-reflected solar energy). Most cool roofs are white or other light colors.
Many roofs are dark-colored and, in the heat of the full sun, the surface of a black roof can increase in temperature as much as 50 °C (122 °F). The result is that a buildings will consume more energy for air conditioning than a “cooler” building.
Cool roofs offer both immediate and long-term savings in building energy costs. White reflective membranes, metal roofing with “cool roof” pigments, coated roofs and planted or green roofs can:
LEED, Energy Star, Cool Roof Criteria, Foam Roofing Problems, Newsletter
A living roof is a roof system that is partially or completely covered with vegetation, a growing medium, planted over a waterproofing membrane. It may also include additional layers such as a root barrier and drainage, and irrigation systems. A living roof is also a cool roof delivering high thermal emittance (the ability to radiate absorbed, or non-reflected solar energy) Also known as “green roofs”, living roofs serve several purposes for a building:
Green roofs can contribute to landfill diversion by:
For more information review: http://www.greenroofs.com
An R-value indicates an insulation’s resistance to heat flow. The higher the R-value, the greater the insulating effectiveness.
The R-value depends on the type of insulation and includes its material, thickness, and density. When calculating the R-value of a multilayered installation, add the R-values of the individual layers. Installing more insulation in your building increases the R-value and the resistance to heat flow.
The effectiveness of an insulation’s resistance to heat flow also depends on how and where the insulation is installed. For example, insulation that is compressed will not provide its full rated R-value. The overall R-value of a wall or ceiling will be somewhat different from the R-value of the insulation itself because some heat flows around the insulation through the studs and joists. Therefore, it’s important to properly install your insulation to achieve the maximum R-value.
The amount of insulation or R-value you’ll need depends on your climate, type of heating and cooling system, and the type of building you plan to insulate.
Solar panels are installed on your roof or adjacent structure. These panels are made up of photovoltaic (PV) cells, which convert sunlight into DC power. The DC power from the solar panels is sent to an inverter, where it is converted into AC power, or standard electrical current used to power your facility. AC power travels from the inverter to the electrical cabinet, often called a breaker box. This power is then available to service all of your electrical needs. The utility meter continually measures your electrical supply; when your solar system produces more power than you need, the meter literally spins backwards, accumulating credits with the utility company that will offset your next bill. Your business remains connected to the utility grid to supply you with electricity when you need more power than your system has produced.