Currently remodeling back room and am looking to raise the ceiling from 7'6" to about 8' maybe 9'. I am not sure how high I can go or if I should just leave it alone. Below are the specifics: and thanks in advance. JRE
All Rafters 2x6 span 12' No collar ties. Ceiling Joists are 2x6. Ridge Beam is a 2x10 In New England so snow load is a factor. Ceiling joists span 15'6" across backroom were they tie into wall, from wall another set of ceiling joists span 8'6". Distance from joist to ridge is 2'10".
Here is a link to a diagram I made, Boy was it hell trying to get this online.