Exterior, House Building Type, and Metal Siding Material Protruding SIP fins on the exterior collude with an overhang to minimize the sun's rays in summer, an important consideration when thinking about heating and cooling the tall, open living areas.  Search “sip” from Leave it to Beavers

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Protruding SIP fins on the exterior collude with an overhang to minimize the sun's rays in summer, an important consideration when thinking about heating and cooling the tall, open living areas.