30 Aug '12, 12am

How do we calculate skylight placement? #green

We are building a new house in DeRidder,Louisiana. Our walls are 8 inch cement block(featherlite rock face), 8 ft, 9 inch to top of block. Roof is 8 in 12. Kitchen faces directly south. Kitchen island runs from 6 feet inside block wall to 13 ft and is 4 ft wide. We want to install a velux skylight( GGL P10 3073 ) in the roof running long way with the kitchen island. We want the sun angles average north peremeter(probably noon, September 21) to stop at the north end of the 3 foot tall counter with perhaps soapstone on top of it. There should be a not too complicated formula or program to help us figure the placement of the skylight in the roof. Thanks for any help or direction! Cathy Tilton

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