9918 18TH AVE W A 2023 Plans 2025-02-03

AIR BARRIER REQUIREMENT • !'�1 -s'; PER 2018 WASHINGTON STATE ENERGY CODE R402.4 A CONTINUOUS AIR BARRIER SHALL BE INSTALLED IN THE BUILDING ENVELOPE.EXTERIOR THERMAL ENVELOPE CONTAINS A CONTINUOUS AIR BARRIER.BREAKS OR JOINTS IN THE AIR BARRIER SHALL BE SEALED.AIR PERMEABLE INSULATION SHALL NOT BE USED AS AS A SEALING MATERIAL. ¢`; PROVIDE BUILDING AIR LEAKAGE TESTING WITH APPROVED BLOWER DOOR PER CEILING G.W.B.TAPED TO WALL INFORMATION BELOW.SUBMIT TESTING RESULTS TO JURISDICTION FOR APPROVAL. — G.W.B. � ^_ Q OFDOOR&WINDIOW ER BLOWER DOOR TEST �' s OPENINGS m II 2018 Washington State Energy Cade(WSEC)section R402.4.1.2 requires air leakage testing for 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 PLATE AT ALL EXTERIOR OF DOOR&WINDOW changes per hour when depressurized with a blower door to 50 Pascals or leas(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 I I be performed using a Blower Door device which consists of a large fan,a frame and panel.A u,m Imanometer(pressure gauge)is used to read house and fan pressures. SHADED / I (I I WSEC states that the test may be performed at any time after rough in.Al penetrations in the COMPONENTS building envelope must be sealed including those for utilities,plumbing,electrical,ventilation and INDICATE ELEMENTS I I combustion appliances.The code also states that when required by the building official,the[es[ COMPRISING THE I I I I shall be conducted by an approved third party. a -= CONTINUOUS AIR To conduct the test: a� BARRIER ENCLOSURE / 1.Close all rsdows doors and fireplace and stove doom. I i I I 2.Clos Windows flue dampers e all dampe includ ng exhaust intake make-up air,back raft and If I i I Since you will be depressunzmg the house dampers n bath G.W.B.CAULKED TO BOTTOM FUATE Ifans,etc will be sucked closed during the test and will therefore not negatively 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 heated areas open. SLAB ON GRADE CONDITIONS I I I 5.Open access I hatches to conditioned attics and/or conditioned crawl spaces.Leave hatches closed if these are unconditioned areas. 6.Seal exterior openings for continuously operating ventilation systems and RIM JOIST CAULKED,GLUED OR / I heat recovery ventilators. GASKETED TO SUBFLOOR / I 7.Tum off heating and cooling systems but do not seal supply or return registers. / I 8.Adjust all combustion appliances so that they do not turn on during the test. / I I Best. the blower door in an exterior door opening and connect hoses from RIM JOIST CAULKED,GLUED OR the GASKETED 70 TOP PLATE m manometer to the blower door fan and the exterior pressure tap.See me instructions for correct set-up. / I 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 flow rate(with simple manometers,the fan pressure(Pa)is G.W.B.CAULKED TO TOP PLATE / PLATE WHEN ADJACENT I PARTIITIONS converted to.CFMso using a flow table.Many digital manometers sold with TO UNCONDITIONED I blower doors can automatically perform this conversion,and display rY / ATTIC CFMso directly.)Consult your blower floor and manometer manuals. L.L // I You now must convert the flow rate(CFMa,)to ACHso. w / I Use the following formula: ACH5o=(CFMsoX60)/Volume Q SEAL G.W.B.TO SILL Where m PLATE AT ALL EXTERIOR ACH so=Air Changes per Hour at-50 Pascals G.W.B.CAULKED TO BOTTOM PLATE WALLS SEAL ALONG INSIDE OF CFMw X60=Converts Cubic Feet per Minute to Cubic Feet per BOTTOM OF FIRST STUD Hour AT INTERIOR WALL OR Volume=Conditioned floor area of the housing unit multiplied by BOTTOM PLATE CAULKED OR GASKETED HOLD BACK FIRST SND the ceiling height TO SUBFLOOR/CONCRETE SLAB AT AND RUN G.W.B. SLAB ON GRADE CONDITIONS CONTINUOUS Example:A blower door test has been done on a 2,000 square foot house and the fan flow(CFM50)rate is 1100 CFM. ACHso=(CFM50 X 60)/Volume SUBFLOOR CAULKED,GLUED OR ALL ELECTRICAL PENETRATIONS AT EXTERIOR AC =(11 00 X 60111. /(2000 X 8) GASKETED TO RIM JOIST WALLS TO USE AIR-SEALED BOXES.ALL WIRE ACHso=66,000/16,000 OPENINGS&PENETRATIONS SEALED WITH ACHso=4.1 RIM JOIST CAULKED OR GASKETED CAULK,PUTTY OR INTEGRAL SEAL. Since the code requires the ACHso to be less than 4,this house complies with an TO SILL PLATE SEAL G.W.B.TO BOX FLANGE WITH ACHso of 4.1.Record the ACHso on the energy certificate on or near the eleclncel CONTINUOUS BEAD OF CAULK OR ADHESIVE. panel. P.T.SILL PLATE INSTALLED OVER CONTINUOUS SILL GASKET W Q J L = VJ Z N ccG.W.B AIR BARRIER-CONCEPTUAL EXTERIOR MALL SECTION G.W.B AIR BARRIER-CONCEPTUAL ISOMETRIC O W p LL Z a w U a m 'z N CONCEPTUAL INTERIOR AIR BARRIER SYSTEM-GYPSUM WALL BOARD(G.W.B.)METHOD a N.T.S. - ^IZ G.W.B.ADHESIVE ON SEALANT OR ADHESIVE I CONTINUOUS BEAD w BOTH SIDES OF FIRST O a INTERIOR STUD E \ SUBFLOOR ADHESIVE JOB NO.: \ 22205 \\ I PLOT DATE SEALANT OR ADHESNE G.W.B.ADHESIVE 12/5/20234:22:21 PM AT BOTTOM AND CONTINUOUS SEALANTAT TOP OF STUD - ? FIXTURE PERIMETER TO \\ DATE: 06/08/2023 G.W.B. \ a,SCALE: 1"=1'-0" I.C.RATED RECESSED \ i DRAWN: MB G.W.B.ADHESIVE LIGHT FIXTURE ------ AT BOTTOM AND \\ CHCKD: TM o TOP OF PLATE GENERAL SHEETS "-SHEET NO.: SEALING AT RECESSED FIXTURES A SEALING AT INTERSECTING WALLS SEALING AT RIM JOIST A19 --- 3 N.T.S. — `f N.T.S. 5 N.T.S.