9916 18TH AVE W B 2023 Plans 2025-02-03

AIR BARRIER REQUIREMENT 9 PER 2018 WASHINGTON STATE ENERGY CODE R402.4 A CONTINUOUS AIR BARRIER m 'F r-t.J SHALL BE INSTALLED IN THE BUILDING ENVELOPE.EXTERIOR THERMAL ENVELOPE CONTAINS A CONTINUOUS AIR BARRIER.BREAKS OR JOINTS IN THE AIR BARRIER SHALL .+ 3 BE SEALED.AIR PERMEABLE INSULATION SHALL NOT BE USED AS AS A SEALING MATERIAL. ¢� PROVIDE BUILDING AIR LEAKAGE TESTING WITH APPROVED BLOWER DOOR PER ]]46G.W.B. G G.W.B.TAPED TO WALL INFORMATION BELOW.SUBMIT TESTING RESULTS TO JURISDICTION FOR APPROVAL. SEAL G.W.B PE O OORBWINDOWER D BLOWER DOOR TEST � OPENINGS 2018 Washington State Energy Code(WSEC)section R402.4.1.2 requires air leakage testing for a o 3 SEAL G.W.B.TO TOP I I SEAL G.W.B.PERIMETER all new houses and additions.The requirement is met if the structure has a leakage rate of 5 air o PLATE AT ALL EXTERIOR OF DOOR&WINDOW changes per hour when depressurized with a blower door to 50 Pascals or less(5ACH50).A — WALLS I I OPENINGS Pascal is a measurement of pressure.249 Pascals are equal to 1"of water column.The test must G.W.B.CAULKED TO TOP PLATE be performed using a Blower Door device which consists of a large fan,a frame and panel.A II I manometer(pressure gauge)is used to read house and fan pressures. SHADED it I I I I WSEC states that the test may be performed at any lime after rough in.All penetrations in the COMPONENTS I I I building envelope must be sealed including those for Wililies,plumbing,elearicel,ventilation and INDICATE ELEMENTS I combustion appliances.The code also states that when required by the building official,the test jl� COMPRISING THE shall be conducted by an approved third party.CONTINUOUS AIRBARRIER ENCLOSURE To cendua the test1.Close all windows,doors and fireplace and stove doors.2.Close all dampers including exhaust,intake,make-up air,backdraft and G.W.B.CAULKED TO BOTTOM PLATEflue dampers.Since you will be depressurizing the house,dampers in bath •�fans,etc.will be sucked closed during the test antl will therefore notnegatively affect the results. BOTTOM PLATE CAULKED OR GASKETED I I I I 3.Make sure plumbing traps are filled with water. TO SUBFLOOR/CONCRETE SLAB AT 4.Leave doors between healed areas open. I SLAB ON GRADE CONDITIONS I I I i 5.Open access hatches to conditioned attics and/or conditioned crawl I I I I spaces.Leave hatches closed if these are unconditioned areas. 6.Seal exterior openings for continuously operating ventilation systems and JL RIM JOIST CAULKED,GLUED OR I heat recovery ventilators. GASKETED TO SUBFLOOR I 7.Turn off heating and cooling systems but do not seal supply or return registers. Adjust all combustion appliances so that they do not turn on during the I test. RIM JOIST CAULKED,GLUED OR I 9.Install the blower door in an exterior door opening and connect hoses from GASKETED A TOP PLATE the manometer to the blower door fan and the exterior pressure tap.See / i in instructions for correct set-up. SEAL G.W.B.TO FIRST 10.Depressurize the house to-50 Pascals. SEAL G.W.B.TO TOP STUD AT INTERIOR 11.Record the now rate(with simple manometers,the fan pressure(Pa)is G.W.B.CAULKED TO TOP PLATE PLATE WHEN ADJACENT PARTUTIONS converted to.CFMw using a now table.Many digital manometers sold with TO UNCONDITIONED I blower doomcan automatically perform this conversion,and display ATTIC I CFMso directly.)Consult your blower door and manometer manuals. / w You now must convert the flow rate(CFMso I to ACHeo. IUse the following formula: ACHw=(CFM so X 60)/Volume Q SEAL G.W.B.TO SILL Where- m PLATE AT ALL EXTERIOR ACH w=Air Changes per Hour at-50 Pascals G.W.B.CAULKED TO BOTTOM PLATE WALLS SEAL ALONG INSIDE OF CFMeo X 60=Converts Cubic Feet per Minute to Cubic Feet per BOTTOM OF FIRST STUD Hour AT INTERIOR WALL OR Volume=Condifioned floor area of the housing unit multiplied by BOTTOM PLATE CAULKED OR GASKETED HOLD BACK FIRST STUD the tailing height TO SUBFLOOR/CONCRETE SLAB AT AND RUN G.W.B. SLAB ON GRADE CONDITIONS CONTINUOUS Example:A blower door test has be.en done on a 2,000 square foot house and the fan flow(CFM50)rate is 1100 CFM. ALL ELECTRICAL PENETRATIONS AT EXTERIOR ACHm=(CFM50 X 60)[Volume -- eo=(11 00 X 60)/(2000 X 8) GASKETED TO RIM JOIST WALLS TO USE AIR-SEALED BOXES.ALL WIRE ACHeo=66,000/16,000 OPENINGS&PENETRATIONS SEALED WITH ACHeo=4.1 CAULK,PUTTY OR INTEGRAL SEAL. RIM JOIST CAULKED OR GASKETED Since the code requires the AC Wo to be less than 4,this house complies with an TO SILL PLATE SEAL G.W.B.TO BOX FLANGE WITH ACHw of 4.1.Record the ACHeo on the energy certificate on or near the electrical CONTINUOUS BEAD OF CAULK OR ADHESIVE. panel. P.T.SILL PLATE INSTALLED OVER CONTINUOUS SILL GASKET W Cc r Q J L = 9 LU ZN N , G.W.B AIR BARRIER-CONCEPTUAL EXTERIOR : ALL SECTION G.W.B AIR BARRIER-CONCEPTUAL ISOMETRIC O w o Z W U OL m H CONCEPTUAL INTERIOR AIR BARRIER SYSTEM-GYPSUM WALL BOARD(G.W.B.)METHOD a N.T.S. E b . G.W.B.ADHESIVE ON I SEALANT OR ADHESIVE 3 BOTH SIDES OF FIRST CONTINUOUS BEAD SUBFLOOR ADHESIVE Mk v INTERIOR STUD , JOB NO.: 22205 G.W.B.ADHESIVE \ I SEALANT OR ADHESIVE .=PLOT DATE AT BOTTOM AND 12/SY2023 2:30:38 PM m CONTINUOUS SEALANT AT / TOP OF STUD - 1. FIXTURE PERIMETER TO DATE: OB/08/2023 G.W.B. 6 SCALE: 1„.1'-0" I.C.RATED RECESSED ` E DRAWN: MB G.W.B.ADHESIVE LIGHT FUTURE - - AT BOTTOM AND CHCKD: TM TOP OF PLATE GENERAL SHEETS o SHEET NO.: SEALING AT RECESSED FIXTURES SEALING AT INTERSECTING WALLS SEALING AT RIM JOIST xA 19 3 N.T.S. 4 N.T.S. 5 N.T.S.