{"product_id":"model-rbsf-8-c2-round-back-solar-fan-8-diameter-2-tall-collar-cfm-365-copy","title":"Model RBSF-12-C2 | Round Back Solar Fan  | 12\" Diameter | 2\" Tall Collar | CFM: 740","description":"\u003ch3\u003eRound Back Solar Fan | RBSF-12-C2 | 740 CFM\u003c\/h3\u003e\n\u003cp\u003eThe 12-inch Round-Back Solar Roof Exhaust Fan is 12 inches in diameter and has a 2-inch tall collar. Its model number is RBSF-12-C2, which exhausts air at 740 CFM at peak sunlight. The 12-inch solar round-back fan has a standard __” x __” square flange.\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003eInstallation\u003c\/strong\u003e:\u003c\/h4\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThis fan will be suitable in all climate zones if installed 2 feet or less from the roof's peak on a pitch of 3\/12 or greater\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp\u003eThe 12-inch Round Back Solar Fan is engineered to go on roofs with a 3\/12 to 12\/12 roof pitch.\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003eHow it works\u003c\/strong\u003e:\u003c\/h4\u003e\n\u003cp\u003eThe 8-inch Round Back Solar Roof Exhaust Fan uses the sun to power the motorized fan. The fan dynamically removes hot, humid air in the summer and damp, stale air in the winter. This product continuously exhausts air even when there is no sun, and the motor is off because it also works as a passive roof vent.\u003c\/p\u003e\n\u003cp\u003ePassive ventilation utilizes the Stack Effect. When hot air rises, it speeds up, creating a strong ventilation dynamic. The hot air rises upward to exit through the fan opening. As a result, this will allow cooler, fresh, dry air to flow freely into the attic cavity.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #666666; display: inline !important;\"\u003eFor any questions, please see the \u003c\/span\u003e\u003ca style=\"background-color: #ffffff;\" href=\"https:\/\/roofvents.com\/frequently-asked-questions\/\"\u003efrequently asked questions page\u003c\/a\u003e\u003cspan style=\"color: #666666; display: inline !important;\"\u003e. If you still have questions, email the sales team at \u003c\/span\u003e\u003ca style=\"background-color: #ffffff;\" href=\"mailto:sales@roofvents.com\"\u003esales@roofvents.com\u003c\/a\u003e\u003cspan style=\"color: #666666; display: inline !important;\"\u003e or call 845-565-7770\u003c\/span\u003e\u003c\/p\u003e","brand":"Active Ventilation Products","offers":[{"title":"Aluminum Unpainted","offer_id":48991336825082,"sku":null,"price":88.0,"currency_code":"USD","in_stock":true},{"title":"Standard Colors","offer_id":48991336857850,"sku":null,"price":104.0,"currency_code":"USD","in_stock":true},{"title":"Premium Colors","offer_id":48991336890618,"sku":null,"price":121.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/roofvents.com\/products\/model-rbsf-8-c2-round-back-solar-fan-8-diameter-2-tall-collar-cfm-365-copy","provider":"Active Ventilation Products","version":"1.0","type":"link"}