Patent ID: 8123142

Claim:
A retrofitable ventilation kit for existing first and second roof vents of buildings, comprising: a. a first fan positioned at a first end of the building to exhaust air out of the building through the first roof vent; b. a first power source comprising a first solar panel, wherein the first solar panel supplies power to the first fan, wherein the first solar panel is attached closely proximate to the first vent and positioned closely proximate to the first fan and operatively connected to the first fan by an electrical line through the first vent; c. a first logic circuit operatively connected to the first solar panel and the first fan to control activation and deactivation of the first fan; d. a first temperature sensor to measure an interior air temperature, the first temperature sensor operatively connected to the first logic circuit; e. a second temperature sensor to measure an exterior air temperature, the second temperature sensor operatively connected to the first logic circuit, wherein the first logic circuit is configured to compare the interior air temperature with the exterior air temperature and with a first predetermined set temperature to determine whether a first predetermined set of conditions has been met for activation of the first fan; f. a second fan positioned at a distance away from the first fan to blow air into the building through the second vent; g. a second power source comprising a second solar panel, wherein the second solar panel supplies power to the second fan, wherein the second solar panel is attached closely proximate to the second vent and positioned closely proximate to the second fan with a second electrical line connecting the second solar panel to the second fan through the second vent; h. a second logic circuit operatively connected to the second solar panel and the second fan to control activation and deactivation of the second fan; i. a third temperature sensor to measure the interior air temperature, the third temperature sensor operatively connected to the second logic circuit; j. a fourth temperature sensor to measure the exterior air temperature, the fourth temperature sensor operatively connected to the second logic circuit, wherein the second logic circuit is configured to compare the interior air temperature with the exterior air temperature and with a second predetermined set temperature to determine whether a second predetermined set of conditions has been met for activation of the second fan.