All roofing shall be of Class A fire resistive material, supported by solid sheathing (Chapter 7 Sonoma County Code). (CEC 210.12), 6.13 Receptacles on 120 volt, 15 and 20 ampere circuits shall be tamper resistant. Article III. When built on a steeper slopes we take even more precautions for the forces on the bracing using steel rods bolted through the posts. 1.2 Site Plan: Show property lines, easements and new and existing building locations. 1500 LB/sq.ft. 2 grade lumber. Safety is important and something that should always supersede style. The word "building" shall be construed to include parts thereof . To ensure your design meets code, confer with the Authority Having Jurisdiction (AHJ) over your project. The footing bottoms are located a minimum of 12 inches below undisturbed groundat native soil or below the frostline whichever is the deepest. 2.6 Attic ventilation: 1/150 of attic area. The official information and resource site for rebuilding efforts related to major wildfires in unincorporated Sonoma County. Carbon monoxide alarms are not required in dwellings where there is no fuel-fired appliance or attached garage. 2.7 Enclosed rafter spaces shall have a minimum 1 inch space between the insulation and roof sheathing and at the location of all eave and cornice vents. (R408.4; CPC 707.9), 7.14 Fire blocking shall be provided in concealed spaces of stud walls and partitions, including furred spaces, and parallel rows of studs or staggered studs; vertically at floor and ceiling levels, horizontally at intervals not to exceed 10 feet. 1.11 Energy and CALGreen Documentation: Provide California Energy Code prescriptive or performance method compliance documentation, registered by an approved agency as applicable. Installations exceeding aggregate ratings of Section E328.5 shall also demonstrate compliance with California Fire Code Section 1207. 11.5 For roofs shallower than 3:12 ridges, hips and valleys shall require engineering. diameter or square x thickness - 1,500 psf bearing, TABLE R401.4.1 - PRESUMPTIVE LOAD-BEARING VALUES OF FOUNDATION MATERIALS, Sand, silty sand, clayey sand, silty gravel and clayey gravel, Clay, sandy clay, silty clay, clayey silt, silt and sandy silt. 11.6 Wood structural panel sheathing, when designed to be permanently exposed in outdoor applications, shall be of an exterior exposure durability. (R806.2) Unvented attics may be allowed if meeting the requirements of R806.5. The landing shall be at least as wide as the door served and 36 inches minimum length measured in the direction of travel. Pro Tips on Building a Code-Compliant Deck By Rob Robillard. Do not allow someone to only lag or nail a railing post to the outside of your deck! Decks building codes - Ledger Attachment - IRC & IBC. We put time and effort into building a deck you can enjoy Extended backer board below rim joist. (Table R602.3 item 14), 10.6 Foundation cripple walls shall be framed of studs not less in size than the studs of the wall above. Find out how people use it. (R703.2) Provide 2 layers of Grade D paper, or equivalent, between wood sheathing and stucco lath. (R602.10.1.3). (Repealed. Steel connections and framing become even more crucial. (CMC 903.2.3). (CMC 904.10), 6.8 New dwellings must have a 120 volt powered smoke alarm in every sleeping room, outside each sleeping room, on every story of the dwelling, including basements and habitable attics, but not including crawl spaces or uninhabitable attics. Run shall be 10 inches minimum. Trapped moisture can cause premature decay and attract termites. The construction standards and notes listed below were approved by the director of Transportation & Public Works and adoptedon July 9th 2020 by the County of Sonoma Board of Supervisors per County Ordinance 38-2020-0446 Adoption of an Ordinance to Amend References to Applicable Design and Construction Standards. Include the size, spacing and grade of all members. The concrete mix design shall address bleeding, shrinkage, and curling, in accordance with ACI 302.2R-06. Trim | Cabinets | Mantels, Deck Contractor AIRPORT Chapter 4. Locate upper bolts at least 2 "below the top edge of ledger. These are simple handrail shapes that are permitted by building codes for decks. Sonoma Public Infrastructure (formerly TPW). Tucked between three lush valleys and surrounded by over 60 wineries, Healdsburg is nestled in the heart of the wine country. Ord. All required insulation values and installation details, including details and justifications of adequate attic and underfloor venting shall be provided. The deck we build in this article is approximately 20 inches off the ground and as a result is not required by code to have a railing system on the steps or deck. It typically is a darker color and will last longer than the light treatments found in box stores for example. Learn more about building near a septic tank at Decks.com. (California Energy Code Section 100(b)). No. Rules and Regulations. Serving North Marin & West Sonoma Counties in the San Francisco North Bay area of Northern California Designing decks for our location We are in the #4 earthquake zone the highest risk of all. An added beam allows independent movement of the deck, natural expansion and contraction and no possibility of trapped moisture damaging your home over the many years our decks last. Check with your local county or city hall to see if there are any easements or covenants on the title of your land that grant access to the city. (CMC 304.4; R807.1) In attics in which an appliance is installed, an opening and passageway at least as large as the largest component of the appliance shall be required. Participate in discussions on the finer points about building stairs. Great discussions about using the Deck Foot Anchor. Cripple walls exceeding 4 feet in height shall be framed of studs as required for an additional story. There are several resources about lead poisoning and prevention. In the Bay Area Air Quality Management District, wood burning appliances are not allowed. USGSGeologic Hazards - Spectral Response Acceleration Maps. Clay, silty clay, silt: Clay particles will remain suspended in water for a day or longer. (R403.1.3.1), 8.5 Stepped footings shall be used when slope of footing bottom is greater than 10:1 (H:V). (R703.3.3), 4.8 Corrosion resistant flashing shall be provided at openings and intersections/attachments. Except when located more than 5.5 feet above the floor or when part of a luminaire or appliance. (CPC 603.5.7), 7.9 Safety glazing shall be required within 24 inches of a door edge or within 36 inches of a stairway, landing or ramp when the bottom edge of the glazing is less than 60 inches from the floor or walking surface. SONOMA COUNTY ANIMAL REGULATION ORDINANCE Chapter 6. Lead Hazard Warnings on Pre-1978 BuildingsPermit Sonoma issues over-the-counter permits for work on existing pre-1978 buildings that may contain lead hazards. The above table for footings is from the deck prescriptive based on the 2009 IRC being adopted by most building depts. (R404.1.4.2; Table R403.1(1)), Foundations for Stud Bearing Walls-Minimum Requirements. 7.17 Storage use or placement of a fuel-burning appliance in an underfloor area may trigger the requirement for a 1/2 inch gypsum wallboard or 5/8 inch wood panel membrane on the underside of the floor-framing member. (CMC 305.1). Learn how to trace the number and size of rises and runs to cut out your stair stringer. 9.2 Joists under and parallel to bearing partitions shall be doubled. (R 311.7 & R312.1.3 exception 1 & 2), 3.4 Enclosed useable space under interior stairs shall be finished with inch gypsum board (R302.7), 3.5 Fire blocking is required in concealed spaces between stair stringers at the top and bottom of the run. Openings in guards shall not exceed 4 inches. The vertical bar shall extend to 3 inches clear from the bottom of the footing, have a standard hook, and extend a minimum of 14 inches into the stem wall. Here is a March 14, 2016, replacement-cost estimate for a home destroyed in the 2015 Lake County Valley fire. Spans shall be per Tables R802.4(1) & (2) for ceiling joists and Tables R802.5.1(1) & (2) for rafters. 1874 1 (part), 1972) 19.04.021 - Building and safety divisionPersonnel. You can make an appointment to come to our office. The city will tell you right up front what the setbacks from property lines or sidewalks are. Whether you're looking at a brand new start or a fresh end-of-season deck renovation, give our deck designers a call at 1-888-824-5316 or send us an email at hello@decksdirect.com. Find customized checklists to document compliance with new green building projects. I think I might be over-engineering this but I live in CT and I'm also worried about snow weight. Connection Diagrams: FIVE DIFFERENT TECHNIQUES. We always use steel that is has two coats of zinc for the extra protection needed and our deck screws are anodized or in some cases stainless steel. Permit Sonoma issues over-the-counter permits for work on existing pre-1978 buildings that may contain lead hazards. Penalties, Violations and Abatement. We also add a stringer to the center and each step is within 1/16 to 1/8 of an inch. These joist spans tables don't take into account the wet conditions. The spans of joists varies based upon several factors:joist size,spacing between joists, deckingmaterial and wood species. One story detached accessory buildings used as tool and/or storage sheds or playhouses and under 120 square feet of floor area with no electric or plumbing within. The more you know, the better your deck and backyard projects will be! The "load" is made up of the "dead load" and the "live load".. It works to develop and implement the Sonoma County General Plan, Local Coastal Program and other adopted Area Plans or Specific Plans. 11.2 Rafters shall be sized and framed in accordance with CRC Section R802.4, and the referenced span tables. Every three years, the State adopts new codes to establish uniform standards for the construction and maintenance of buildings. 12.2 The Residential California Green Building Checklist shall be filled out and all mandatory and elective features selected shall be identified with adequate notations and details on the proposed project plans. (R703.4), 4.9 All roof areas of buildings shall be provided with gutters or roof drains. The space between the finished floor and the bottom rail must not exceed 4 inches. The span table used in our area for 2011 is the UBC 1997 code (left) for the minimum size of joists for decks. Hire the Best Deck Builders in Sonoma, CA on HomeAdvisor. There are two types of building permits: For simpler projects that do not require building plans. Well & Septic, Use, or Zoning). The Pacific coast and the type of steel used :: There are grades used for pressure treated lumber. The concrete 2,500 psi compressive. 13.4 When a parcel is located in a State Responsibility Area (SRA), all new construction shall comply with the applicable fire resistant construction requirements of CRC Section R337. Deck posts Deck post sizing requirements are in MRC Table R507.4 and are limited to single-level wood-framed decks when sizing the decks other structural components with MRC Table R507.5. Wood joists and girders closer than 18 inches or 12 inches, respectively, to the exposed ground. Vent length shall be 14 feet maximum and the vent diameter shall not be less than 4 inches. Flood zone (Sonoma County Code 7B), waterways, creeks, etc. 12.1 New construction and additions/alterations increasing a buildings conditioned floor area or volume shall comply with applicable provisions of CalGreen. Learn about the CALGreen Special Inspector program. The glazed area need not be openable for ventilation when a whole house ventilation system is installed (R303.1). Building Code. Note size, number and position of crawl space vents. 9.1 Floor joist size, spacing and grade shall conform to Tables R502.3.1(1 & 2); or shall be designed by a licensed professional. One opening shall be placed within 3 feet of each building corner. When in doubt: Common sense just tells you to use 1500 LB/sq.ft. Guardrails are required once the deck is 30 or more above grade. Start a New Application. The map represents the USGS contour intervals of spectral response acceleration and determines the required amount of wall bracing for structures within specified geographical areas within Sonoma County. 13.1 New structures, and remodels and additions to existing structures shall meet the requirements of the Permit Sonoma Planning Division based on parcel specific zoning, use, and setback requirements. All documents must be digitally sealed, signed, and dated by the person responsible for preparing them. (R703.7.3). The building inspectors are generally in the office between 8-8:30AM and 4:00-4:30PM. 10.7 Minimum wood structural panel sheathing nailing: 6 inches on center at edges and 12 inches on center in field. A variance is a rarity. Nail with eight 16d common nails on each side of the joint, unless additional nailing is specified. The minimum height of the railing varies based on the height of the deck. Email: PermitSonoma-PlanCheck@sonoma-county.org Phone: (707) 565-2095 Fax: (707) 565-2210 Building Plan Check Response Times Justify the amount of bracing provided at each wall line, per wind and seismic requirements of the CRC for non-engineered structures. New state-mandated building codes, that govern the design and construction of structures and the maintenance of life safety systems within structures for fire prevention, go into effect on January 1, 2020. The IRC deck joist span table Serving North Marin & West Sonoma Counties in the San Francisco North Bay area of Northern California (R308.4.5), 7.12 Wood burning appliances shall be EPA phase II certified in the Northern Sonoma County Air Pollution Control District. Decks over 30": We would calculate the tributary loads (including the spa load if any from the manufacturer) and size the footingfor the soil type. In addition there shall be at least one room with a minimum of 120 square feet in each dwelling. 2022 Model Building Codes Local Workshop News. Attachment methods vary depending on the style of stairs but this is a very common and reliable technique. but most building dept. Remember that each city has its own specific building codes, so check with your city's . In Sonoma county, the building permit for a single family residence of 2000 square feet with a 2 car garage is $50,000. 3000 LB/sq.ft. 3.9 Minimum size of concrete footings for exterior decks shall be in accordance with CRC Table R507.3.1, based on the tributary area of the footing and an assumed bearing capacity of soil of 1500 pounds per square foot, unless a higher bearing capacity has been justified by a geotechnical report. If the budget allows in our earthquake zone we prefer not to attach a deck to the home. (R303.3.1), 2.5 Provide ventilation for products of combustion to outside air. 6.16 Applications for stand-by generators shall include the make and model of the unit being installed and the applicable listing specifications and installation instructions. Show size and spacing of joists and rafters, and nail types and spacing for all plywood diaphragms, identify all beams with grade of lumber or engineered wood type and dimensions to be used. The deck joist span is distance between supporting beams below the joists. Sonoma County sheriff's Deputy Rob Dillon says reports came in Building & Construction, How to Cut & Install Notice to Applicants for Commercial Building Permits, Disability Access Requirements and Resources. (1) Temporary stairways that will not be a permanent part of the structure on which construction work is being performed shall be at least 24 inches in width. local or State responsibility area) and itemized square footages of all existing, proposed, and altered building areas (e.g. Building codes are in place to ensure safety, and virtually every state and municipality enforces codes for deck construction. (CPC 402.5). Inspections will be performed on any external building element six feet above ground level including walkways, balconies, decks, landings, stairways and railings. There are several resources about lead poisoning and prevention. The minimum net clear opening width dimension shall be 20 inches. Lag screws must go through band board at least 1/2 ". In either case, you are allowed to build taller guardrails as long as they conform to all other requirements stated in the code. BPC-005. We're only 65 miles north of San Francisco on Hwy. When we have no choice but to attach we use a 3/4 inch steel rod bolted to a connector on the deck joist to the homes structure. I calculate the loads put on the deck and use a span and size of framing higher than the recommended for code. Tables for the minimum joist spansin California's moderate climate regions, How we build a closed in riser stair for decks with a skirt for solid railings, Deck stair total rise table with calculations for riser heights and number of treads, Alter Eagle 1.6 Framing Plans: Identify framing members and sheathing for floor and roof & ceiling plans. We do not use pre-manufactured blocks sitting on dirt ora small amount of concrete. It's like hanging around the office watercooler. A 36 rail measured from the top of rail to the deck surface is required. This guidance applies to most decks. ADMINISTRATION Chapter 3. Search Existing Permits. Always refer to your local building codes or a structural engineer. Welive in the beautiful wine country of Northern California. (R 403.1.6) Provide minimum 3 inch by 3 inch by 0.229 inch plate washers on each bolt. Other openings shall be equipped with solid wood or steel doors 1 3/8 inches in thickness, or 20 minute fire rated doors, equipped with self-closing or automatic-closing and self-latching device. 2000 LB/sq.ft. the County of San Diego for alternative construction methods. 1. If these setbacks cannot be met, a geotechnical report justifying soil characteristics and suitability of the proposed building site shall be provided. Website Design by Owner There are numerous building departments in California. Listen in and see if it is a good solution for your next project. 11.4 Solid block all rafters and trusses at exterior walls. contour lines. Alter Eagle, Thefrequently askedquestions on howto build decks for Northern California The 30" Rule As a general rule, you need a permit for any deck that is higher than 30 inches off the ground. 2.3 Bathrooms, water closet compartments and similar rooms shall have window at least 3 square feet in area, half of which must be openable, or mechanical ventilation must be provided. Simple projects that do not require a building permit. This house was built in 1930s, added on several times.Yes it needed work This was a style were they used 112 as walls. 18.12 Sloped Glazing and Skylights. (R314.3), 6.9 When more than one smoke alarm or carbon monoxide alarm is required, the alarm devices shall be interconnected. If 40 percent to 50 percent of the vents are no more than 3 feet below the ridge or highest point of the roof area; then the ratio may be reduced to 1/300. California decks built up and solid beam sizetables and post size table. 2.10 Air infiltration, insulation, space heating, space cooling, water heating, etc., shall meet CA Energy Commission Standards. chief building official and budget county funds to the building and safety division, as it may deem necessary for the operation of the division. Find out exactly how many balusters or pickets you need with a single click. Basic Decks w/ 60 psf Live Loading April 1, 2017 This Tip Sheet reflects code requirements of the 2015 International Residential Code (IRC) with Washington State Amendments which update the live load to 60 psf. There are usually limits to how close your deck can be to another building. 10.3 Minimum header sizes shall be according to Table R602.7 (1, 2, & 3), 10.4 Double top plates shall have a minimum lap of 24 feet. Learn more about IRC building codes for decks at Decks.com! The GFCI must be adjacent to the hot tub on an outside wall at least 5 feet from any hot tub . When I determine the load I also look at the location and for decks over 32" high we will go to a larger block of concrete called a footing below the circular pier sized to that load. Secondary roof drains shall be provided not less than 2 inches above the roof surface (CPC 1101.12), 5.1 Common wall between garage and dwelling shall have inch gypsum board applied on the garage side.