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SEP. 29. 2003 <br /> <br />3:46PM <br /> <br />SERICE [NC <br /> <br />NO, 5O8 <br /> <br />SERICE CONSTRUCTION, INC. ORPORATED <br /> <br /> 7109 Cahill Avenue East <br /> Inver Grove Heights, MN 55076 <br /> <br />Phone (651) 451-9310 Fax (651) 451.1221 <br /> <br />September 2g, 2003 <br /> <br />Attn: Don Stutesman <br />Kraus-Anderson Construction Co. <br />200 Grand Avenue <br />S~ Paul, MN <br /> <br />Re: Water Infiltration Elk River Public Safety <br /> Elk River, MN <br /> <br />Don: <br /> <br />This Letter is In response to the continued water infiltration @ Ell< River City Hall. As was discussed @ <br />Our meeting on site(9124/2003), the water is believed to be coming in @ a horizontal crack in the brick mortar <br />joint at the bottom of the piers between the openings in the elliptical wall. The water is running down <br />the cavity and is penetrating through the thru-wall flashing into the building, <br /> <br />It is our belief that with most of the elliptical wall bearing on masonry below & the center portion that is leaking <br />bearing on a beam, a control joint @ each end of the beam should relieve the pressure of differential <br />movement & prevent future horizontal cracks(From Left to right- center of pier 4 & center of pier7). <br /> <br />Our proposed solution to remedy this problem is as follows: <br /> <br />1) Remove 2 courses of brick @ the brick ledge on the both sides of the elliptical wall & remove the copper <br /> thru-wall flashing. <br /> <br />2) Install self-adhesive membrane waterproofing flashing in place of the copper. <br /> <br />3) Relay the 2 courses of brick. <br /> <br />4) Grind out the horizontal brick joint that is cracked & tuckpolnt it. <br /> <br />5) Sawcut in a vertical control joint c. ontrol joint at center of pier 4 & pier 7 - Front & Back sides. <br />6) Caulk the control joint. ~' <br /> <br />7) We will warranty the work for 10 Years. <br /> <br /> <br />