9914 18TH AVE W B 2023 Plans 2025-02-03

AIR BARRIER REQUIREMENT 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 .- 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 CEILING G.W.B.TAPED TO WALL INFORMATION BELOW.SUBMIT TESTING RESULTS TO JURISDICTION FOR APPROVAL. -- ' � G.W.B. SEAL G.W.B.PERIMETER OF DOOR&WINDOW BLOWER DOOR TEST d s OPENINGS II � $ SEAL G.W.B.TO TOP I I SEAL G.W.B.PERIMETER 2018 Washington Stale Energy Code(WSEC)section R402.4.1.2 requires air leakage testing for m o 3 all new houses and additions.The requirement is met if the structure has a leakage rate of 5 air PLATE AT ALL EXTERIOR OF DOORS WINDOW d WALLS I I OPENINGS changes per hour when depressurized with a blower door to 50 Pascals or less(5ACH50).A 3„ G.W.B.CAULKED TO TOP PLATE Pascal is a measurement of pressure.249 Pascals are equal to 1"of water column.The test must a�m be performed using a Blower Door device which consists of a large fan,a frame and panel.A manometer(pressure gauge)is used to read house and fan pressures. SHADED I I I ' WSEC states that the lest may be performed at any time after rough in.All penetrations in the building envelope must be sealed including those for utilities,plumbing,electrical,ventilation and COMPONENTS _ INDICATE ELEMENTS / I I I combustion appliances.The code also states that when required by the building official,the test w COMPRISING THE I I shall be conducted by an approved third party. _ N CONTINUOUS AIR I I I I I BARRIER ENCLOSURE I 1 conduct the test:.Close all windows,doors and fireplace and stove doors. 2.Close all dampers in exhaust,intake,make-up air,backdraft and G.W.B.CAULKED TO BOTTOM PLATE I I I I I I flue dampers.Since you will be depressurizing the house,dampers in bath I I I fans,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 I 4.Leave doors between heated areas open. SLAB ON GRADE CONDITIONS ( 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. u. 6.Seal exterior openings for continuously operating ventilation systems and RIM JOIST CAULKED,GLUED OR I I heat recovery ventilators. GASKETED TO SUBFLOOR I 7.Turn 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. GASKETED TO TOP PLATE II 9.Install the blower door in an exterior door opening and connect hoses from RIM JOIST CAULKED,GLUED OR I the manometer to the blower door fan and the exterior pressure tap.See manufacturer's 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 PARTIITIONS converted to.CFMs using a flow table.Many digital manometers sold with TO UNCONDITIONED I blower Coors can automatically perform this conversion,and display m / ATTIC CFMw directly.)Consult your blower door and manometer manuals. L.L You now must convert the flow rate(CFMso)to ACHso. LU Use the following formula: Cc Cc ACHso=(CFM so X 60)/Volume Q e..L . ..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 CFMw X 60=Converts Cubic Feet per Minute to Cubic Feet per Ir BOTTOM OF FIRST STUD Hour AT IN WALL OR Volume=Conditoned floor area of the housing unit multiplied by BOTTOM PLATE CAULKED OR GASKETED HOLD BACK FIRST STUD the ceiling 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. SUBFLOOR CAULKED,GLUED OR ALL ELECTRICAL PENETRATIONS AT EXTERIOR ACHso=(CFM50 X 60)1 Volume ACHso=(11 00 X 60)1(2000 X 8) GASKETED TO RIM JOIST WALLS TO USE AIR-SEALED BOXES.ALL WIRE ACHso=66,000/16,000 OPENINGS&PENETRATIONS SEALED WITH CAULK,PUTTY OR INTEGRAL SEAL. ACHso=4.1 RIM JOIST CAULKED OR GASKETED 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 electrical CONTINUOUS BEAD OF CAULK OR ADHESIVE. panel. F"lP.T.SILL PLATE INSTALLED OVER CONTINUOUS SILL GASKET LU Q^ J J L = u > O U, Z O G.W.B AIR BARRIER-CONCEPTUAL EXTERIOR ALL SECTION G.W.B AIR BARRIER-CONCEPTUAL ISOMETRIC O w o L� Z LU U O m z a CONCEPTUAL INTERIOR AIR BARRIER SYSTEM-GYPSUM WALL BOARD(G.W.B.)METHOD a N.T.S. Z E v � � m G.W.B.ADHESIVE ON I SEALANT OR ADHESIVE CONTINUOUS BEAD BOTH SIDES OF FIRST E 'A BOTH \ 3UBFLOORADHESIV O s E INTERIOR STUD \ (Y 33 \ I \ JOB NO.: N \\\ I \ 22205 0 P E W.B.AD SIVE SEALANT OR ADHESIVE - 12/5/2023227:06 PM ` ---_-- - -- _�- -� G. HE .. AT BOTTOM AND CONTINUOUS SEALANT AT TOP OF STUD FIXTURE PERIMETER TO \ DATE: 06/08/2023 G.W.B.---- -- / \\ y SCALE: 1"-V-0" I.C.RATED RECESSED I G.W.B \ E DRAWN: MB LIGHT FIXTURE G ADHEBNE AT BOTTOM AND \ CHCKD: TM TOP OF PLATE \ GENERAL SHEETS s SHEET NO.: SEALING AT RECESSED FIXTURES SEALING AT INTERSECTING WALLS SEALING AT RIM JOIST A19 u 3 N.T.S. 4 N.T.S. 5 N.T.S.