2007 CEDAR ST 2021 Plans 2022-11-03

LAMENTATED COMPOSITION ROOFING TO MATCH EXISTING OVER 30# FELT UNDERLAYMENT OVER 1/2" PLYWD OR OSB SHEATHING. DOUBLE UNDERLAYMENT WHEN SLOPE IS LESS THAN 4:12 ROOF FRAMING PER PLAN. ALL TRUSSES TO BE STAMPED BY WASHINGTON STATE ENGINEER. VENTED BIRD BLOCKING BETWEEN EACH TRUSS/RAFTER. SKYLIGHTS PER PLAN U .50 (MAX.) CEILING INSULATION R49 OR R38 PER 2015 WASHINGTON STATE ENERGY CODE. PROVIDE AIR BAFFEL BETWEEN INSULATION AND ROOF SHEATHING. THE THICKNESS OF BLOWN -IN OR SPRAYED ROOF/CEILING INSULATIO%IBERGLASS OR CELLULOSE) SHALL BE WRITTEN IN INCHES ON MARKERS THAT ARE INSTALLED AT LEAST ONE FOR EVERY 300 SUARE FEET THROUGHOUT THE ATTIC SPACE. USE 5" CONTINUOUS ALUMINUM TIES OR EQUAL (TYP) ON ALL° O.C. VENTED BIRD BLOCK SOLID BLOCKING' BETWEEN RAFTERS OR TRUSSES LAP SIDING TO MATCH EXISTING OVER ASPHALT SATURATED FELT (14# MIN) OR BUILDING WRAP OVER OSB OR PLYWD SHEATHING THICKNESS & NAILING PER ENGINEERING ANCHOR BOLTS W/3" SQ WASHERS PER IRC R403.1.6.1 PER SIMPSON HURRICANE �— BAFFEL (2) 2x 6 PLATES 6 DOUBLE TOP PLATES 8' 1-1/8" PL. HT. OR PER F HEADERS AS PER PLAN R10 PER WSEC 2018 314 SUBFLOOR WINDOWS AS PER PLAN U-VALUE PER PER PLAN TO COMPLY WITH 2O18 WSEC VINYL TO MATCH EXISTING R21INSULATION W BONINTERIORER2018 HEIGHTS PLAN R21 - EXTERIOR WALL INSULATION PER WSEC R30 INSUL AT VAULTED CEILINGS PER 2018 WSEC BEAMS PER PLAN +--- 2x 6 INSUL. WALL 2x 10 DF#2 JOISTS SINGLE BOTTOM 2 6 P.T. PLATE 314" PLYWOOD SUBFLOOR - GLUED & NAILED. JOISTS PER PLAN. R38 INSUL. PER 2018 WSEC UNDER FLOORS ABOVE UNHEATED AREAS. TYP. WALL SECTION 1 /2" = 1' 0" WHILE KEY DESIGN, INC. HAS MADE EFFORT TO ENSURE THE ACCURACY OF CLIENT FROM 2DIFL©bRPtANS INC. LT THEIBUILDER SHALL CHECK ANDED BY D E VERIFY ALL DIMENSIONS & COMPLIANCE TO APPLICABLE CODES PRIOR TO CONSTRUCTION. © Key Design, Inc - 2021 NOTE: FRAME POCH ROOF USING MANUF. SCISSOR TRUSSES @ 24" O.C. SEE DETAIL A ROOF FRAMING / ATTICS IRC R802.10.2 Trusses must be designed by a registered design professional, in accordance with ANSIITP11 standards. IRC R802.10.3 Trusses must be braced to prevent lateral rotation and provide lateral stability in accordance with the individual truss design drawings. IRC R802.10.4 Truss members must not be cut, notched, drilled, spliced or otherwise altered in any way without the approval of a registered design professional. Alterations resulting in the addition of loads that exceed the design load for the truss will not be permitted without verification that the truss is capable of supporting such additional loading. IRC R802.3 Ridge board: Minimum 1" thickness. Valley or hip rafter: Minimum 2" thickness. Minimum depth not less than the cut end of the rafter. IRC R803.2.1.1 Plywood roof sheathing, if exposed on underside, must exterior grade or assembled with exterior glue meeting an "Exposure 1" rating. IRC R806.1 & R806.2 Enclosed attic and rafter spaces must have cross ventilation for each separate space by vent openings protected against the entrance of rain and snow. The net free vent area may not be less than 1 /150 of the space ventilated. Exception: The area may be 1/300, provided at least 50 percent and not more than 80 percent of the required vents are in the upper portion of the space and at least 3' above eave vents or if a vapor barrier with a one pens maximum rating is applied to the warm side of the ceiling. The openings must be covered with corrosion -resistant 1/4" screen. DETAIL A PORCH TRUSS ! 8' 1-1/8" ABOVE SUBFOOR -3 (PG 7-9) SECTION R806 ROOF VENTILATION R806.1 Ventilation required. Enclosed attics and enclosed rafter spaces formed where ceilings are applied directly to the underside of roof rafters shall have cross ventilation for each separate space by ventilatingg openings protected against the entrance of rain or snow. Ventilation openings shall have a least dimension of 1/16 inch T.6 mm) minimum and T/4 inch (6A mm) maximum. Ventilation openings having a least dimension larger than 1/4 inch (6.4 mm) shall be provided with corrosion -resistant wire cloth screening, hardware cloth or similar material with openings having a least dimension of 1116 inch (1.6 mm) minimum and 1/4 inch (6.4 mm) maximum. Openings in roof framing members shall conform to the requirements of Section R802.7. Required ventilation openings shall open directly to the outside air. R806.2 Minimum vent area. The minimum net free ventilating area shall be 1/150 of the area of the vented space. Exception: The minimum net free ventilation area shall be 1/300 of the vented space provided one or more of the following conditions are met: 1. In Climate Zones 6, 7 and 8, a Class I or II vaporretarder Is installed on the warm -in -winter side of the ceiling. 2. Not less than 40 percent and not more than 50 percent of the required ventilating area is provided by ventilators located in the upper portion of the attic or rafter space. Upper ventilators shall be located not more than 3 feet (914 mm) below the ridge or highest point of the space measured vertically, with the balance of the required ventilation provided by eave or cornice vents. Where the location of wall or roof framing members conflicts with the installation of upper ventilators, installation more than 3 feet (914 mm) below the ridge or highest point of the space shall be permitted. R806.3 Vent and insulation clearance. Where eave or cornice vents are installed, insulation shall not block the free flow of air. Not less than a 1-inch (25 mm) space shall be provided between the insulation and the roof sheathing and at the location of the vent. R806.4 Installation and weather protection. Ventilators shall be installed in accordance with manufacturer's instructions. Installation of ventilators in roofsystems shall be in accordance with the requirements of Section R903. Installation of ventilators in wall systems shall be in accordance with the requirements of Section R703.1. DETAIL B MUDROOM TRUSS T 6" IRC R906.3 An insulation baffle with a minimum of a 1" air space installed between the insulation and the underside of the roof sheeting at the location of the vent shall be provided to maintain air flow. IRC R807.1 Attic access must have minimum size of 22" x 30" with 30" unobstructed headroom and be readily accessible. IRC R905.2 Asphalt shingles require underlayment (151b felt paper or equivalent) and a minimum 4:12 pitch on solid sheathed decks. Asphalt shingles may be installed on slopes as low as 2:12, if provided double underlayment. Asphalt shingles shall be self sealing or be interlocking. IRC R905.10.4 Metal Roofing shall be attached with Galvanized or Stainless Steel fasteners; or per manufacturers' specifications. IRC R907.3 New composition roofing may be installed over existing roofing if there is 2 or less layers of existing composition roofing; or if the existing roofing has not deteriorated so it cannot support the new roofing. West Coast Structural Engineering Inc. QrAn .R miah-n P—ku tt177 Rlnin WA QR7Rn STRUCTURAL REVIEW THIS DRAWING HAS BEEN REVIEWED FOR STRUCTURAL REQUIREMENTS ONLY PER THE ATTACHED CALCULATIONS. PROJECT NO: W4700 ROOF FRAMING PLAN - REVISED 9121 Olson Addition 2007 Cedar Street PLAN:A20-ND Everett, WA Key Design, Inc. Key Design, Inc. SCALE: 1 /4r' = 1 r Or' —• Homes of Quality Design and Construction 7433 76th Dr NE Marysville, WA 98270 6 10 (425) 350-1702 of