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8.6. <br />8.7 <br />8.8. <br />To repair walls, use lutnber of such dimension as will allow the f►nis6ed surfaces on both sidcs of the wail <br />to be smooth and continuous. <br />Posts for porch framing must be SPF 4t/ x 4d wolmanized lumber, or as specified in project spxifications. <br />Roof Framing <br />A. Sufficient bracing must be installod to remove and prevent rooccuntncc of swag, and to maintain <br />a true end cvcn plsne. <br />B. Collar beams must be installed on upper 1/3 of mfter pairs, and ridgeboard must be pleced on <br />every 3 pairs of rafteas. <br />C. Purlins must be installed perpendicular to rafters to allow bracing to load bearing walis and to <br />cemove and/or prevent reoccurrence of swag. <br />D. Load bearing wall mfter supports must be installed along purlins to even roof raRets to one <br />another in such a manner as to provide the decked roof surface tn be in a true and even plane. <br />E. Ceiling joist strong-backs must be installed to support existing 2b' x 4" ceiling joiats. The strong- <br />back must bo a minimum 2`dx 6d fastened to 2`dx4`d. Unit is to be set and fastened atong middle <br />of joist span and ends must be fastenetl at top plate of nearast wall. <br />F. Maximum allowable spans fur ceiling joists must be as foilows: <br />G. <br />H. <br />I. <br />J. <br />K. <br />L. <br />M. <br />N. <br />0. <br />gize <br />S acin <br />Maximum SPan <br />2d x 6`d <br />16d o.c. <br />143 4" <br />2b' x bb' <br />24d o.c. <br />11310`d <br />2d x 8b' <br />16b' o.c. <br />183 9t1 <br />Zd X gd <br />24d O.C. <br />153 4d <br />2d x IOb <br />16'd o.c. <br />223 2" <br />2t/ x lOb' <br />24b' o.c. <br />1831'd <br />Ceiling joists must be continuous or may be joined together over a partition to provide a <br />condnuous tio across the structure. <br />Al] damaged or deteriorated rafters must be t+emoved entirely and splicing must not be permitted. <br />Barge taRers must be installed on every gabled roof. (to be same siu as rafters) <br />When mfter tails are W be replaced, they must be cut back flush with exterlor siding. New mfter <br />tails must be scabbed on 23 on existing mfter and of same dimension as existing. <br />When a ridgeboat+d is required, it must be a minimum of 1 b in. thickness and not less in depth <br />than the cut end of the rafter it joins. (one siu lsrger than raRers to be used) <br />New decking must be'/zb, CDX grade plywood or 5/8d OSB using spacing clips for tafting <br />spacing up to 24", o.a allowiag at least 1!8" clearance between seams. <br />Repair decking must match existing decking in dimension and design. <br />Ali roof overhangs must be a minimum of 12b', extending horizontaliy out fmm house wall, to a <br />maximum of 18". <br />Engincer-designed nusses may be used in lieu of conventional fnur►ing• <br />TDHCA - HOME Investment Partnerships Program <br />Appondix A-04 - TMC Specifications Page 9 of 24 <br />Revisod 01/01/2004 <br />220 <br />