A developer of energy-efficient windows that reflect the sun when it's hot but let sunshine in when it's cool has raised $5 million as it moves into manufacturing.
Denver-based RavenBrick LLC says the investment from an affiliate of Aravaipa Venture Fund of Boulder will help it build a production line and begin large-scale fabrication of its patented windows. It previously received a $2 million loan from the state and $250,000 loan from the city of Denver.
RavenBrick has 14 employees, but CEO Alex Burney said Friday the company hopes to hire 80 people in positions including manufacturing, engineering and sales over the next two years.
Burney says the company also is looking at bringing its technology to roofing and the whole exterior of a building.