21 Woodlawn-1Vreeland Design Associates Sht._____ of _____.
An integrative approach to design, engineering and site planning
116 River Road, Leyden, MA 01337 Phone: (413) 624-0126
Email: dvreeland@verizon.net Fax: (413) 624-3282
Re: 21 Woodlawn Ave, Northampton, MA: Roof framing details for 10’ shed dormer. Note: The proposed shed dormer, the width of the existing ridge line of the hip roof, is supported on pairs of built-up girder rafters that are secured to the existing floor assembly with welded steel brackets and prevent the girder rafters from spreading apart. The rafters, parallel with
the ridge are a minimum of 2x6 @ 16” o.c. or 2x8 @ 24”o.c. supported on 2x6 stud walls
framed on top of the girder rafters.
6"x3-1/2"x 3/8"x 3' Long Angle screwed to top wall/floor
3"x 3/16" side plates welded to angle & strap plate
8"x 3/16" strap plate welded to angle
3 - LedgerLoks into each joist
3'
3 - 7-1/4" LVL Girder Rafter
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Both side of roof & supporting
2 - 7-1/4" ridge beam withSimpson #HHUS48 Hangers
1x T&G Flooring