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7. Please provide unvented roof assembly design per IRC 806.5 accordingly.Unvented roof <br /> assembly is permitted when the listed conditions are met,kindly indicate which condition(s) <br /> workforthis project. <br /> Please see sheet'A402 Section'as I have changed from spray to rigid insulation,and changed <br /> notes. Conditions in R806.5 are met as follows: <br /> • Condition 1:The unvented space inbetween the TJI structural members us completely within the <br /> thermal building envelope.Since it is not a truss design,the space within the members will be <br /> fully insulated as shown on'A402 Section'. <br /> • Condition 2: Interior Class 1 vapor barrier will not be installed on the ceiling side of the unvented <br /> enclosed roof assembly. <br /> • Condition 3:There are no wood shingles or shakes on the property. <br /> • Condition 4:Accordingto the IECC climate zone map, Everett WA is in climate zone 4C <br /> •Condition 5:States'Insulation shall comply with Item 5.3 and either 5.1 or 5.2 <br /> For item 5.1,I will meet this condition with 5.1.3-spray applied closed cell insulation to act as the <br /> air-impermeable insulation directly against the bottom of structural sheathing,then <br /> air-permeable fiberglass insulation will be installed directly under. <br /> notice that under Table R806.5 and in a climate zone 4C I need to be at a R-value of R-10 to meet <br /> requirements To meet this requirement I will install 2"closed cell rigid foam insulation <br /> which will provide a R-value of R-10 and act as the vapor barrier.The rest will be unfaced <br /> fiberglass batt insulation R-21+R21.Total Rvalue R-52 <br /> 8. Please indicate the new addition whole house ventilation design on the floor plan <br /> accordingly. IRC Table M1505.4.3(1-3). Please indicate the cfm,cont.vs intermitted, 1.0 <br /> sone max and all requirements will be met. <br /> I have added a through wall exhaust fan on the East wall.According to Table M1505.4.3, <br /> +/-600 square foot space.With 0-1 bedrooms,the required rate is 30 CFM. <br /> I will install a 50 CFM 1.0 Sone exhaust fan that will run continiously to meet the whole house <br /> ventilation system requirements.Changes made to'A102,A204,and E101' <br /> 9. Please provide kitchen local exhaust per IRC Table M1505.5.4.4(1). <br /> Please see sheet'A102 Reflected ceiling'and 'A201 South Elevation'.I wilt be using a <br /> standard above-range microwave vent combo that moves 300CFM. Minimum is 100 CFM. <br /> I also included the bathroom fan which will move 50CFM, 1.0 Sone.Minimum is 50 CFM. <br /> 10. Please claim additional energy credit per WSEC 406.3 for new conditioned habitable space. <br /> 0.5 energy credits for new Frigidaire 25.6-cu ft Side-by-Side Refrigerator with Ice Maker <br /> 0.5 energy credits fortable R406.3, option 1.1 Vertical Fenstration U 0.24 <br /> 2.0 Energy credits for table R406.3,option 3.6a <br /> Ductless mini split unit BLUERIDGE BMY18DIY22 KIT25 <br /> HSPF 11.5,SEER 22.0 <br /> 18,000 BTU.Good for 700-1000 ft.Space is 530 sgft <br />