I live in south west lower Michigan, and I am trying to find out the spacing needed for my rafters. I am planning on a 19 foot 6 run at 4/12. I am using a 11 7/8 inch tall I-joist. The roof will be built with 2×4 on top of the ijoist and barn roof sheet metal on top of that. Can I go with a spacin inbetween rafters greater than 2 feet?
Crucial elements such as improved drainage, earthquake resistance, and a curbless shower enable this couple to live on the same property as family members.
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