Daylighting

ENERGY EFFICIENT COMPONENTS & ROOFS

The   GREEN ROOF                                                            Group

Solar Attic Ventilation

Attic venting is an important aspect of maintaining a healthy, energy efficient home. Solar Attic Fans work with your existing passive vents to improve air circulation. Adding a solar attic fan is a simple and affordable home improvement product that overtime will pay for itself with a Tax Credit. The Green Roof Group can help cool your attic space in the summer which will reduce your AC costs. Attic temperatures can exceed 160°F during hot summer days. Proper attic ventilation can reduce those temperatures by up to 40°F. No matter how much insulation is in the attic, heat can still transfer into adjacent living spaces. It will also extend the life of your roof shingles and reduce moisture buildup.

Sloped Cool Roof Systems

The Green Roof Group utilizes Cool Roofs which are highly reflective and use highly emissive materials that keep the roof 50 to 60 degrees cooler than a normal roof under a hot summer sun. Because of this, Cool roofs can cut energy costs by at least 15%. Since Cool Roofs roofs gain less heat than normal roofs, they reduce the need for air conditioning making buildings more comfortable to the people inside. Sloped Cool Roofs are available in tiles, asphalt shingles and standing seam metal roofs. These green roofs help reduce heat islanding.

Low Sloped Cool Roof Coatings

Products for low-slope roofs, typically found on commercial and industrial buildings, fall into two categories - single-ply materials such as TPO and PVC and Cool Roof coatings.  The Cool Roof coatings can be applied over an an existing clean, leak-free roof surface. Building owners can cut maintenance costs and increase the life expectancy of the roof with Energy Star certified coatings or Cool Roof membranes. The Green Roof Group can help you achieve LEED credits with the integration of green roofs, sustainable roofing and reduction of heat islanding.

The Green Roof Group’s  use of daylighting is an extremely efficient way to help you reduce the consumption of electricity during daytime hours in Portland. Newer tubular skylights distribute light more evenly throughout a room without harsh direct sunlight as was the case with first generation skylights. They transmit indirect and diffused sunlight which reduces potential UV ray damage to carpets and furniture. Building heat loss in the winter and summer heat gain are minimized with smaller rooftop solar collectors as compared with traditional skylights. The amount of air space is also reduced which makes tubular skylights even more efficient.  

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