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Torii Jacobs February 25, 1986 Building Inspector City of Orono 1335 S. Brown Road P.O.Box 66 Crystal Bay, Minnesota 55323 Re: Building Permit 265 0`_c. Crystal Bay Road North Dear Tom: This letter is written in response to our meeting on Friday, February 21, 1986, concerning my proposed method of constructing exterior walls on the first and second floors of the above residence . It is my intention to construct the exterior walls in accordance with the working drawings attached. Under this method of construction, the entire wall , including both stud walls, vapor barrier , insulation, plates and sills , and exterior sheething will be built on the floor before the wall is raised. Before any such exterior walls are built, I would like to call for an inspection so that the construction could be observed for approval of the process. One aspect of the wall construction we discussed in some detail is the placement of the vapor barrier, as shown on the plans which were submitted to the City with my original application. Under this method of double wall construction, the 6-mil poly barrier will be placed on the exterior of the inside stud wall . This will result in 3-5/8 inches of insulation to the warm side of the barrier between the 2x4 studs . There would be approximately eight (8) inches of insulation to the cold side of the barrier . In addition, there will be plywood sheething and a brick facade outside the wall . The primary reason for this placement of the vapor barrier is so that it will not be necessary to break the vapor barrier for electrical and other utilities. I have also enclosed certain authorities approving of this vapor barrier placement -- as opposed to placing the poly directly over the inside stud wall and directly under the drywall or other finished wall . Please let me know if this procedure is acceptable. Si cerely, A jCott K. Goldsmith