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1Building Codes Division <br /> <br />1535 Edgewater NW <br />Salem, OR 97310 <br />Telephone (503) 378-4133 <br />Fax (503) 378-2322 <br />TDD (503) 378-7,358 <br /> <br />FEBRUARY 3, 1995 <br /> :". : <br /> <br />SANDRA FREILINOER PLANS EXAMINER <br />MARION' COUNTY BUILDING DEPARTMENT <br />285 CHURCH STREET N~ ROOM 132 <br />SALEM OR 97301-3670 <br /> <br />OiE n <br /> <br />DEPARTMENT OF <br /> <br />CONSUMER AND <br /> <br />BUSINESS SERVICES <br /> <br />AWNINGS & CARPORTS <br /> <br />As we discussed over the phone, OAR 918-510~30(3) does not prohibit the attachment of awnings or <br />carports to m~mufactured dwellings, but establishes conditions by which it can be done. The intent of this <br />rule, though not very cleat, is to allow the attachment of awnings and carports to the sidewalls of <br />manufactured dwellings. <br /> <br />The proper attachment of an awning or carport should consist of the following: The awning or carport <br />rail should be attached with lag screws directly to each sidewall stud (studs are usually at 16" on center). <br />Attachment to the siding only is not acceptable and we do not recommend attaching rails to sidewall top <br />plates. The ~ingle 1" top plates will easily split out from the lag screws end neither 1" or 2" manufactured <br />dwelling top plates are designed to transfer the roof live loads of the tuanufactured dwelling or the <br />awning/c~xport to the studs. To transfer the loads from the sidewall studs to the ground, the current rules <br />suggest perimeter pier ' ' <br /> blocking at 8 on cent~. However, with the mereas~ ~eig!kt,0,f the newer <br />manufactured dwellings and the additional roof load from the awning/carport, 4' on center would be more <br />appr°Priatu.' All other attachments should be made a~w, ording to the awning/carport manufacturer's <br />engineered plans with special attention paid to the top end bottom post connections and ground anchors. <br /> <br />Regarding your question of which takes precedence for the attachment of accessory structures to <br />manufactured dwellings (manufactured dwelling manufacturer's installation instructions vs. Oregon <br />Specialty Code~), the Oregon Specialty Codes take precedence. <br /> <br />Thank you for bringing this issue to my attention. We are currently irt the process of re-writing the <br />manufactured dwelling rules and will attempt to make this section mom clear and tuere "user friendly." <br /> <br />PATRICK D. LEWIS, Code Specialist <br />Code Development and Complianco <br /> <br />PDL:tugi <br /> <br />cc: Don Dickey, Alumax <br /> <br /> <br />