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� o� <br /> o ,�� o <br /> ��:,.z=� CITY of URONO <br /> ,,� ' �''�l; , , � �,,,� <br /> ��� �:5`�� �, Municipal Offices <br /> '�+� ��` , 6", ti, <br /> '���, �> ��',�G Street Address: Mailing Address: <br /> 9kEs�p4� 2750 Kelley Parkway P.O. Box 66 <br /> Orono, MN 55356 Crystal Bay, MN 55323-0066 <br /> June 6, 1994 <br /> Mr. Bob Hanning, Jr. <br /> 4220 Sixth Avenue North <br /> Long Lake, Minnesota 55356 <br /> Re: Proposed Log Building <br /> Dear Mr. Hanning: <br /> I apologize for the length of time for plan review on your proposed log shed. This is our busiest <br /> time of year and it was difficult to find the time to do research and make phone calls to try to <br /> determine if your design meets the requirements of the Uniform Building Code. Unfortunately, <br /> I was unable to find any information that would help me in the plan review. <br /> I understand you have constructed these buildings before and are comfortable with the design. <br /> But for the City to issue a building permit, I am required to determine if the building meets all <br /> the requirements of the building code. I attempted to verify structural components by assigning <br /> conservative dimensional lumber factors for allowable loading but there are just too many <br /> unknowns. For instance, the roof is required to support a 30 lb. snow load and a dead load, <br /> which is the roof structure itself and I have no way to know how much that is. Other unknowns <br /> are the allowable loading factors of the members and have they been graded? Knots in <br /> dimensional lumber are typically not a big problem because if you stack up 3-x10s, for instance, <br /> the knots will be in different locations. In a solid log, a bad knot could reduce the strength of <br /> the member to almost nothing. Other unknowns are the connections of the logs in the "truss". <br /> We have no way of determining if they are adequate. <br /> The bottom line is in order to assure the structure stabiliry of the building for you and future <br /> property owners, the City must require that the roof be designed by a licensed structural <br /> engineer. I will put the permit application on hold until I receive the engineering. If you have <br /> any questions, feel free to contact me at my office. <br /> Sincerely, <br /> � ����-� <br /> L e Oman <br /> Building Official <br /> LO/ch <br /> cc: Jeanne A. Mabusth, Building & Zoning Adm. <br /> Bruce L. Vang, Field Inspector <br /> Telephone (612) 473-7357 • FAX 473-0510 <br />