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Plan Review Comments Page 13 of 14 rate of not exceeding 5 air changes per hour in Climate Zones 1 and 2, and 3 air changes per hour in Climate Zones 3 through 8. Testing shall be conducted with a blower door at a pressure of 0.2 inches w.g. Where required by the code official, testing shall be conducted by an approved third party. A written report of the results of the test shall be signed by the party conducting the test and provided to the code official. Testing shall be performed at any time after creation of all penetrations of the building thermal envelope. 93. If a duct sealant such as Aero Seal is used, a certificate from the installer is required at final mechanical inspection. Submit documentation that the new construction meets the state energy code. Preferably the Energy Efficiency Compliance Certificate. A separate mechanical permit is required to be obtained by your mechanical contractor. A letter from that Mechanical contractor with their letter head is required, detailing that they have run the calculations that show that the current heating plant is sufficient to meet the requirements of the energy code for the existing home and the new addition. 94. Please note the following minimum insulation and maximum fenestration requirements for new construction: [MN Table 1322.0402.1.1] i. R-49 for roofs; Minimum 6-inch energy heal. ii. R-20 for exterior wood framed walls and rims. iii. R-30 for floors. iv. R-15 for basement and crawl space walls. v. U-.32 for windows and doors (fenestration) vi. For existing roofs without an energy heel, R-30 is vii. acceptable over of the top plate. R402.2.2 95. Considerable square footage is being added to the existing home. Provide documentation by the mechanical contractor on their letter head showing that the project will met the energy code requirements for heating and cooling. A zoning permit application must be made and as per city ordinance a fence must be installed around perimeter and approved by planning. City ordinance 910. Subd. 7, A A fence is required around the pool area with a minimum height of 5’ and must be approved by zoning at time of application. Minnesota Administrative Rules 1300.0120 PERMITS 96. Retaining walls that are not over four (4) feet in height from bottom of footing to top of wall do not need a permit. 97. Minnesota Pollution Control Agency The complete contents of swimming pools are seldom discharged. Outdoor swimming pools are usually discharged only at the summers’ end. The quality of swimming pool water is typically good with few concerns for discharging the water. One concern that must be addressed is the presence of chlorine in the water. Chlorination must be stopped several days in advance of