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FLASHING REQUIREMENTS <br />R609.1 General. This section prescribes performance and construction requirements for exterior <br />windows and doors installed in walls. Windows and doors shall be installed and flashed in accordance <br />with the fenestration manufacturer's written instructions. Window and door openings shall be flashed <br />in accordance with Section R703.4. Written installation instructions shall be provided by the <br />fenestration manufacturer for each window or door. <br />R703.2 Water -resistive barrier. One layer of No. 15 asphalt felt, free from holes and breaks, <br />complying with ASTM D226 for Type I felt or other approved water -resistive barrier shall be applied <br />over studs or sheathing of all exterior walls. Such felt or material shall be applied horizontally, with the <br />upper layer lapped over the lower layer not less than 2 inches (51 mm). Where joints occur, felt shall <br />be lapped not less than 6 inches (152 mm). The felt or other approved material shall be continuous to <br />the top of walls and terminated at penetrations and building appendages in a manner to meet <br />the requirements of the exterior wall envelope as described in Section R703.1. The water -resistive <br />barrier is not required for detached accessory buildings. <br />R703.4 Flashing. Approved corrosion -resistant flashing shall be applied shingle -fashion in a manner <br />to prevent entry of water into the wall cavity or penetration of water to the building structural framing <br />components. Self -adhered membranes used as flashing shall comply with AAMA 711. All exterior <br />fenestration products shall be sealed at the juncture with the building wall with a sealant complying <br />with AAMA 800 or ASTM C920 Class 25 Grade NS or greater for proper joint expansion and <br />contraction, ASTM C1281, AAMA 812, or other approved standard as appropriate for the type of <br />sealant. Fluid -applied membranes used as flashing in exterior walls shall comply with AAMA 714. The <br />flashing shall extend to the surface of the exterior wall finish. Approved corrosion resistant flashings <br />shall be installed at the following locations: <br />CUT HOUSEWRAP AT <br />450 ANGLE <br />MODIFIED "I" CUT IN <br />HOUSEWRAP <br />LINE OF WINDOW <br />OPENING <br />APPROVED HOUSEWRAP OVER - <br />SHEATHING OVER WD STUD WALL <br />INSTALL 4" WIDE <br />SELF -ADHERING <br />STRAIGHT FLASHII <br />OVER NAILING FLA <br />AT JAMBS <br />EXTEND FLASHING <br />BELOW SILL FLEXII <br />FLASHING & MIN 2 <br />THE HEAD <br />TEMPORARILY <br />FOLD -UP & SE( <br />HOUSEWRAP (I <br />TUCK FLAP UN <br />AT HEAD <br />FOLD HOUSE <br />IN AT JAMBS <br />SLOPE SILL P <br />1.Exterior window and door openings. Flashing at exterior window and door openings shall extend to <br />the surface of the exterior wall finish or to the water -resistive barrier complying with Section 703.2 for <br />subsequent drainage. Mechanically attached flexible flashings shall comply with AAMA 712. Flashing at <br />exterior window and door openings shall be installed in accordance with one or more of the following: <br />1. 1.1.The fenestration manufacturer's installation and flashing instructions, or for applications not <br />addressed in the fenestration manufacturer's instructions, in accordance with the flashing <br />manufacturer's instructions. Where flashing instructions or details are not provided, pan flashing shall <br />be installed at the sill of exterior window and door openings. Pan flashing shall be sealed or sloped in <br />such a manner as to direct water to the surface of the exterior wall finish or to the water resistive <br />barrier for subsequent drainage. Openings using pan flashing shall incorporate flashing or protection <br />at the head and sides. <br />2. 1.2.In accordance with the flashing design or method of a registered design professional. <br />3. 1.3.In accordance with other approved methods. <br />4. 1.4.In accordance with FMA/AAMA 100, FMA/ AAMA 200, FMA/WDMA 250, FMA/AAMA/ WDMA <br />300 or FMA/AAMA/WDMA 400. <br />2. 2.At the intersection of chimneys or other masonry construction with frame or stucco walls, with <br />projecting lips on both sides under stucco copings. <br />3. 3.Under and at the ends of masonry, wood or metal copings and sills. <br />4. 4.Continuously above all projecting wood trim. <br />5. 5.Where exterior porches, decks or stairs attach to a wall or floor assembly of wood -frame <br />construction. <br />6. 6.At wall and roof intersections. <br />7. 7.At built-in gutters. <br />INSTALL 4" <br />SELF -ADHERING <br />FLASHING OVER <br />WINDOW FIN HEAD <br />EXTEND SELF -ADHERING ---j <br />FLASHING I" MIN BEYOND <br />JAMB FLASHING I <br />STEP 7 <br />TYPICAL WINDOW FLASHING INSTALLATION DP"T fA-%ILS <br />it, <br />MIN <br />kUGN FLASHIN( <br />NI INT. EDGE 0 <br />3ILL R.O. <br />AECHANICALLY <br />-ASTEN FANNEE <br />:_DGES. (CAP NA <br />37APLES) PER M <br />:NSTRUCTIONS <br />:NSTALL 6" WID <br />3ELF-ADHERING <br />1ASHING AT SI <br />D(TEND FLEX FL <br />)OWN THE SILL <br />FOLD HOUSEWRAP <br />DOWN.CONSTRUCTI <br />TAPE ACROSS HEAD <br />WINDOW &THEN <br />DIAGONAL CUT <br />A. CONTINUOUS <br />) BACK OF WIND <br />;E IN LINE W/ <br />­10LES OR SLOT. <br />INSTALL WINE <br />PLUMB, LEVEL <br />SQUARE PER � <br />WRITTEN INS" <br />NOTE: <br />1. WINDOW INSTALLATION AND FLASHING DETAILS ARE CONSISTENT <br />WITH ASTM E 2112 METHOD A-1 EXCEPT SELF -ADHERING <br />FLASHINGS ARE USED <br />2. IT IS THE CONTRACTORS RESPONSIBILITY TO VERIFY THE <br />COMPATIBILITY OF ALL PRODUCTS INCLUDING HOUSEWRAP, <br />SEALANTS & SELF -ADHERING FLASHING MATERIALS USED DURING <br />CONSTRUCTION. <br />3. INSTALL ALL MATERIALS PER MANUFACTURER'S WRITTEN <br />SPECIFICATIONS <br />WARNING: SEALANTS/FLASHINGS MAY REACT ADVERSELY IF NOT <br />COMPATIBLE. <br />NOTE: <br />TYPICAL WINDOW & DOOR FLASHING <br />INSTALLATION DETAILS PREPARED IN <br />ACCORDANCE WITH FBC APPROVED <br />SPECIFICATIONS. <br />"-SEAL WINDOW FRAMETO <br />INSIDE OF R.O. W/ SEALANT AT <br />SILL AND A MIN 6" UP BOTH <br />JAMBS TO FORM A BACK DAM. <br />SEAL BALANCE OF FRAME WITH <br />SEALANT OR NOWEXPANDING <br />FOAM (PROVIDE BACKER ROD <br />WHERE REQUIRED) <br />-ADHERING FLEXIBLE <br />��SE�LIF <br />FLASHING AT SILL, FLUSH <br />TO INTERIOR FRAMING. <br />INTERIOR VIEW <br />STEP 9 <br />NTS <br />DAVIS BEWS <br />DESIGN GROVP <br />L.��� IJ <br />60 SrATE STR= EAST <br />OUWAA& RX)MA 34677 <br />813. 925.1300 TEL <br />SL3. 925. 1800 FAX <br />Vir��DAVLSBEWS.COM <br />TAWA o nEY%1VEk <br />F-ST. 1994 <br />C) <br />(�%l <br />0 <br />V) <br />" = %0 <br />Z> ro <br />(0 Ln <br />Z <br />Ln <br />rL LL O.-N <br />U 00 <br />Z §" E <br />Z <br />W Z <br />U.J <br />_J 0 <br />%0 <br />1Z <br />19 <br />2 <br />wo <br />U.J <br />Zg <br />ZZ <br />g! <br />UZ80 <br />ro- -0 <br />.J Z UUJ I < <br />�25 Z Z <br />c!� Z <br />0 W <br />g 6 - <br />W) <br />UJ Q� 8 <br />0� LL <br />LL1 <br />tn <br />Z <br />0 <br />L) <br />Z <br />LU <br />Z Z <br />0 <br />0 <br />U < <br />b 1­4 <br />F- <br />0 Z <br />_J UJ <br />F_ U_ R <br />LU <br />Z C) <br />0 <br />Z <br />Z U Z Z 0 <br />LU <br />0 U <br />U.J Z <br />0 Z <br />Z LU <br />Z <br />0 5 F- D <br />rn 10- LU kal M <br />SCALE AS NOTED <br />DATE: 10-19-2018 <br />VERSION NO. <br />100 <br />SHEET NO. <br />DT5n 1 <br />