You build the future. We’ll power it.
When designing and constructing a new home, you may wish to consider how to make it a solar-friendly site. There are three factors which directly impact the efficiency of a solar system:
During the design and construction
The roof orientation, or azimuth, is extremely important to the efficiency of a solar system. A roof facing true south is ideal in Oregon; on a compass, this is 176 degrees. Next, it is very important that the roof be free of shade from trees or other nearby obstructions. Here’s a good rule of thumb: a tree should be at least 2-3 times as far away from the house as it is tall. If not, it will likely throw some shading on the roof during the year. Lastly, the roof pitch will affect the efficiency of the system, though not quite as much as roof orientation and shading. A pitch of around 36 degrees is great for solar electric systems.
Solar systems are most commonly placed on asphalt shingle or metal roofs. Cedar shingle and tile roofs are more difficult, but with enough advance notice, we can install our flashings as the roof is being installed and this solves most of the issues that arise with these roof types. Slate roofs are nearly impossible to install a solar system on, and we do not recommend it. If your new construction home features a slate roof, you may wish to consider a ground mounted solar system.
When designing your new home, you should also consider any roof obstructions that may be present on the southern-facing roof. Dormers, intersecting roof lines, hips, skylights, and vents all detract from the amount of usable space for a solar system. It is most advantageous to your energy production to keep your southern-facing roof as free from obstructions as possible.
Please feel free to contact us at anytime during the design or construction phase for your new home!