The 2015 ICC International Residential Code (IRC) compiles all building, plumbing, mechanical, fuel gas and electrical requirements for one- and two-family dwellings in one convenient code. 2015 International Residential Code® Digital Codes Premium Subscription. The installation of mineral-surfaced roll roofing shall comply with this section. The City of Austin follows the 2015 International Building Code. 2015 International Plumbing Code $ 89.99 The IPC® also includes its companion document, 2015 International Private Sewage Disposal Code® that contains provisions for design, installation, and inspection of private sewage disposal systems, and provides flexibility in the development of safe sanitary systems. 2015 International Residential Code with amendments; 2014 National Electric Code with amendments; This ordinance with amendments is available as ordinance 2124. R302.1(1) Exterior walls – Projections not allowed when less than 2 ft.for fire separation distance . 303.7 Interior Stairway Illumination – New exception: Switch is not required where remote, central or automatically controlled. 101.3 Intent. codes such as the International Building Code (IBC), International Residential Code (IRC), as promulgated by the The members of the TRI/WSRCA are environmentally conscious companies who’s policies and practices reflect a commitment to the preservation and welfare of our environment. Projects provide a dedicated space to collaborate on code research. Residential Code for one- and two-family dwellings of the Texas Industrialized Housing and Buildings Program. functionality. Click the links below to download the PDF files. Liquid-applied roofing shall have a design. Many people get these two confused and that is quite common. For SI: 1 ounce per square foot = 0.305 kg/m. Roof penetrations shall be flashed and sealed in accordance with this chapter. The installation of liquid-applied roofing shall comply with the provisions of this section. The installation of thermoset single-ply roofing shall comply with the provisions of this section. The City made one amendment to IRC Chapter 9 Sections R905. Each year about 2.5 billion square feet of roof coverings are installed on existing buildings. h�bbd```b``~"#@$C�d��h�Ik��e$0��"M��H�6�ulB4X �4|$�lA�(�]Y �s\%c`+�"}��fZ�H�@�_�#Xh�#��� � ��� (B) Table 307.1(1) of the International Building Code is amended by the addition of a footnote as follows: Table … Liquid-applied roofing shall be installed in accordance with this chapter and the manufacturer's instructions. Click Here for modifications to the code adopted by reference. Don't miss relevant code. 2015 International Residential Code® Skip to the end of the images gallery. Asphalt shingles shall comply with ASTM D3462. Asphalt shingles shall meet the classification requirements of, Fasteners for asphalt shingles shall be galvanized steel, stainless steel, aluminum or copper roofing nails, minimum 12-gage [0.105 inch (3 mm)] shank with a minimum, Asphalt shingles shall have the minimum number of fasteners required by the manufacturer, but not less than four fasteners per strip shingle or two fasteners per individual shingle. Mineral-surfaced roll roofing shall not be applied on roof. h�b```f``*d�b`�� € "�@����ڠ���Р�``X���}�C�B������^���`����,�����\Rt3����d���zӥ�`@,I�����U4�P웺��&�s��DO��3ُ=|�8�$/�K��r�pS��.��qIةIq�vIF��z�����ۃ�7x�g�j1�~���J��^\��q��"���3���Fl�R�kQa%����ы]4{k�&t�yݕR��>���� ��� ���TJe@�Y. On the UpCodes website. This comprehensive, stand-alone residential code establishes minimum regulations for one- and two-family dwellings and townhouses using prescriptive provisions. Stainless steel fasteners are acceptable for metal roofs. Click Here for modifications to the code adopted by reference. 2015 International Energy Conservation Code (PDF) 8. Skip to the beginning of the images gallery. Section R1003.10.1 of the IRC indicates that “Through-flashing and weep holes shall be installed as required by Section R703.” It is amazing that this has actually been a building code requirement since 2006, because it is rarely ever observed, at least in most of the buildings investigated by the author. Highlight changes enacted by your local jurisdiction. The IRC regulates work on one- and two-family dwellings and townhouses. 2015 International Plumbing Code 2015 International Fire Code with Amendments 2015 Fuel Gas Code 2015 Property Maintenance Code 2017 National Electrical Code with Amendments. 1. 2015 International Fuel Gas Code (PDF) 7. ADOPTS WITH AMENDMENTS: International Residential Code 2015 (IRC 2015) Most popular sections Section R403 Footings Section R304 Minimum Room Areas Section R905 Requirements for Roof Coverings Section R908 Reroofing Section R602 Wood Wall Framing Section R307 Toilet, Bath and … 2015 International Fire Code - Ord. Galvanized fasteners shall be used for steel roofs. Liquid-applied roofing shall comply with ASTM C 836, C 957, D 1227, D 3468, D 6083, D 6694 or D 6947. International Existing Building Code®, 2015 Edition (IEBC®, 2015) September 15, 2017. Effective January 17, 2020, the Town of Erie is currently under the following codes: International Building Code 2015 Edition International Residential Code 2015 Edition Modified bitumen membrane roofs shall have a design. International Residential Code ®, 2015 Edition (IRC®, 2015) September 17, 2018. Kentucky specific amendments are below: 2018 Kentucky Residential Code, Second Edition 2018 Kentucky Building Code, Second Edition SmartGov Online … An approved. For roofs that provide positive drainage, re-covering or replacing an existing, Complete and separate roofing systems, such as standing-seam metal roof systems, that are designed to transmit the roof loads directly to the building's structural system and do not rely on existing roofs and, The application of a new protective coating over an existing spray polyurethane foam roofing system shall be permitted without tear-off of existing, Where the existing roof has two or more applications of any type of. Provisions in the appendices shall not apply unless specifically adopted. Fifteen-inch (381 mm) or 18-inch (457 mm) wood shakes shall be permitted to be used for the final course at the. This does not include the New York State Supplements. R101.2 Scope. The IBC allows non-classified roof coverings to be used on Residential Group R-3 (see IBC Section 310.5) and Group U (see IBC Section 312) buildings such as agricultural buildings, barns, carports, if the separation between the leading edges of the adjacent roofs is less than 6 feet unless otherwise required by local requirements, such as the International Wildland Urban Interface Code. These inputs help surface the applicable codes and requirements. Building construction codes effective March 1, 2017 or as noted otherwise. This is only a general list and is not intended to address all possible conditions. Same as Maximum Ultimate Design Wind Speed, Apply in accordance with the manufacturer's, Asphalt-saturated and asphalt-coated organic felt base sheet, Asphalt-saturated organic felt (perforated), Coal-tar primer used in roofing, dampproofing and waterproofing, ASTM B 370 minimum 16 oz/sq ft and 12 oz/sq ft high-yield copper for metal-sheet, ASTM B 209, 0.024 minimum thickness for roll-formed panels and 0.019-inch minimum, Terne coating of 40 lb per double base box, field painted where applicable in accordance with, 0.027 inch minimum thickness: 99.995% electrolytic high-, As an alternative, self-adhering polymer-modified bitumen, As an alternative, a minimum 4-inch-wide (102 mm) strip of self-adhering polymer-modified bitumen membrane complying with ASTM D1970, installed in accordance with the manufacturer's instructions for the deck material, shall be applied over all joints in the roof decking. Rapidly and efficiently calculate project parameters. The other committee will review the Ice and Water Barrier Roofing issue in the 2015 International Residential Code. Learn More . A reliable and up-to-date source of codes. Asphalt shingles shall be fastened to solidly sheathed decks. C503.3.1 Roof replacement. Never miss important differences made to the code. A cricket or saddle shall be installed on the ridge side of any chimney or penetration more than 30 inches (762 mm) wide as measured perpendicular to the slope. For buildings under 25,000 square feet (square footage of the entire building as defined in the Green Buildings Ordinance): If 2015 International Residential Code 2015 International Building Code 2015 International Mechanical Code 2015 International Property Maintenance Code ... Re-roofing of residential Zoning & Building Permit Applications available at the Building Inspector's Office, City Hall, 120 … Permits and Scope of Work . Slate shingles shall comply with ASTM C 406. The International Code Council (ICC) publishes a variety of model codes. Save and quickly access sections most relevant to your project. As a result of this proposal approval, the 2015 International Energy Conservation Code (IECC) includes new language that provides unambiguous direction on how the energy code provisions apply to roof repair, roof recover and roof replacement. Materials and methods of application used for recovering or replacing an existing roof covering shall comply with the requirements of Chapter 9. 2015 International Residential Code – as amended and adopted by Washington State (Includes adoption of Appendices F and Q) Chapter 11 and Chapters 25 through 43 are not adopted) 2015 International Mechanical Code – as amended and adopted by Washington State (Includes adoption of 2015 International Fuel Gas Code, 2014 NFPA 58 & 2014 NFPA 54) 2015 International Fire Code – as … Roughly 70-90% of all roofing projects (depending on the year) are performed on existing buildings. 2015 International Residential Code (PDF) 4. 26 gage [0.019 inches (0.5 mm)] corrosion-resistant sheet metal and shall extend 10 inches (254 mm) from the centerline each way for roofs having, Each bundle of shingles shall be identified by a. For an excellent guide to the entire IBC, consider getting a copy of Building Codes Illustrated: A Guide to Understanding the 2018 International Building Code by Francis D. K. Ching and Steven R. Winkel. Class A, B or C roofing shall be installed in jurisdictions designated by law as requiring their use or where the edge of the roof is less than 3 feet (914 mm) from a lot line. The International Residential Code is designed to meet these needs through model code regulations that safeguard the public health and safety in all communities, large and small. Slate shingles shall be fastened to solidly sheathed roofs. The first will review the 2020 National Electrical Code, along with the residential portion of the 2018 International Residential Code. 2015 International Residential Code for One- and Two-Family Dwellings, also known as the 2015 International Residential Code. Valley and flashing metal shall be a minimum uncoated thickness of 0.0179-inch (0.5 mm) zinc coated G90. Building Codes: 2018 International Building Code: Chapter 15 Roof Assemblies and Rooftop Structures. Sprayed polyurethane foam roofs shall have a design. And fortunately, the reroofing requirements are not all that complicated. These codes are based on the 2015 International Building Code and the 2015 International Residential Code for One- and Two- Family Dwellings and the Kentucky specific amendments. For open valleys, valley lining of two plies of mineral-surfaced roll roofing, complying with ASTM D 3909 or ASTM D 6380 Class M, shall be permitted. Rooftop-mounted photovoltaic systems shall be installed in accordance with the manufacturer's instructions. Roofing‐specific requirements of IECC 2015 May 18, 2017 9 Arizona Roofing Contractors Association Webinar Roofing‐specific adaptation of Table R402.1.1 International Energy Conservation Code, 2015 Edition (Residential buildings) Insulationand Fenestration Requirements by Componenta Climate zone CeilingR‐value 1 30 2 38 3 4 49 5 6 7 Base flashing shall be of either corrosion-resistant metal of minimum nominal 0.019-inch (0.5 mm) thickness or mineral-surfaced roll roofing weighing not less than 77 pounds per 100 square feet (4 kg/m. International Code Council (ICC) Online Code Library. 1. c. 142A and 201 One specific regulation in the new roofing code that would apply to many of the state’s homeowners is a new rule on decking. 2015 IRC Building . Quickly locate sections across your jurisdiction. Mineral-surfaced roll roofing shall be fastened to solidly sheathed roofs. Any reference in 780 CMR to the International Residential Code shall be considered reference to 780 CMR 51.00 through 120.00. International Building Code ®, 2015 Edition (IBC®, 2015) September 17, 2018. The installation of modified bitumen roofing shall comply with the provisions of this section. Sections of flashing shall have an end lap of not less than 4 inches (102 mm). The code requirements for re-covering or replacing an existing roof covering can be found in IRC Section R908 Reroofing. Skip to the beginning of the images gallery. 1273 0 obj <>stream 6th. This is NOT true. Print chapters, sections, and subsections for frequently used code. The regulations cover dwellings and townhouses up to three stories. Check with your Department of 1219 0 obj <> endobj Surface critical code sections based on your project inputs. Built-up roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Flashing for asphalt shingles shall comply with this section. Many times I hear people explain it such that the International Building Code (IBC) is the code book for commercial construction and the International Residential Code (IRC) is the code book for residential construction. 2015 Building Code Amendments 11-9-5. INTERNATIONAL BUILDING CODE AMENDMENTS. Modified bitumen roofs shall be installed in accordance with this chapter and the manufacturer's instructions. R903.2.2 Crickets and saddles. Provisions for rooftop mounted photovoltaic systems have been added to the roofing chapter of the code. Two of these code books I would like to talk about is the International Building Code (IBC) and the International Residential Code (IRC). S:/WP/PR/Handouts 2015 I Codes/Residential Roofing & Re-roofing Page 1 of 2 This handout only applies to dwellings and accessory buildings regulated in accordance with the 2015 International Residential Code (IRC) as adopted and amended by the City of Lakewood effective September 1, 2015. 2015 International Residential Code (IRC) – Residential; 2015 International Plumbing Code (IPC)* – Plumbing; 2014 National Electrical Code* – Electrical; 2015 International Mechanical Code (IMC)* – Mechanical *Alabama has no mandatory statewide building code. The provisions of the . Thermoset single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Online access to content with search and collaboration tools. Understanding the reroofing requirements in the building code is critical to proper design and construction. International Residential Code (IRC) or International Building Code (IBC) Publications. (Error code: 273), Part III — Building Planning and Construction, The provisions of this chapter shall govern the design, materials, construction and quality of, Roofs shall be covered with materials as set forth in Sections, Flashings shall be installed in a manner that prevents moisture from entering the wall and roof through joints in copings, through moisture permeable materials and at intersections with parapet, Flashings shall be installed at wall and roof intersections, wherever there is a change in roof, A cricket or saddle shall be installed on the, The requirements set forth in this section shall apply to the application of, For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, In areas where there has been a history of ice forming along the eaves causing a backup of water as designated in. 101.2.1 Appendices. 1.1 General 1.2 Hail 1.3 Wind 1.4 Fire 1.5 Cold Climate. 0 The installation of wood shakes shall comply with the provisions of this section. edition, the 2015 IRC contains many important changes including: For closed valleys (valley covered with shingles), valley lining of one ply of smooth roll roofing complying with ASTM D 6380 and not less than 36 inches wide (914 mm) or valley lining as described in Item 1 or 2 shall be permitted. The installation of built-up roofs shall comply with the provisions of this section. Leverage the most sophisticated code compliance platform. By GA law, the State Minimum Standard Codes are mandatory and applicable statewide regardless if the local government has a code enforcement program or not. 2015 International Existing Building Code (PDF) 4. The contractor, Fasteners for asphalt shingles shall be galvanized, stainless steel, aluminum or copper roofing nails, minimum 12 gage [0.105 inch (2.67 mm)] shank with a minimum 0.375 inch-diameter (9.5 mm) head, of a length to penetrate through the roofing materials and a minimum of 0.75 inch (19.1 mm) thick, the nails shall penetrate through the sheathing. A liquid-applied protective coating that complies with, Foam plastic materials and installation shall comply with. Valley linings shall be installed in accordance with the manufacturer's instructions before applying shingles. %%EOF Mineral-surfaced roll roofing shall conform to ASTM D 3909 or ASTM D 6380, Class M. Mineral-surfaced roll roofing shall be installed in accordance with this chapter and the manufacturer's instructions. Highlight differences between any two building codes. The supplements can be downloaded from the State's website: 2016 Uniform Cod Roof replacements shall comply with Section C402.1.3, C402.1.4, C402.1.5 or C407 where the existing roof assembly is part of the building thermal envelope and contains insulation entirely above the roof deck. Additional calculations are required for conditions outside of these assumptions. Electrical . Most of the new subsections will make prescriptive deck construction a lot simpler. Nails shall be corrosion resistant and not less than 11 gage, Tile shall be applied in accordance with this chapter and the, At the juncture of roof vertical surfaces, flashing and counterflashing shall be provided in accordance with this chapter and the, Roof valley flashing shall be of corrosion-resistant metal of the same material as the. Roofing material installation checklist for the successful installation and longevity of your new roof ☛ This handout was developed by the Colorado Chapter of the International Code Council as a basic plan submittal under the 2015 International Residential Code. International Residential Code ®, 2015 Edition (IRC®, 2015) September 17, 2018. Leverage the full code compliance platform. Permit applications received on or after July 18, 2016 will be considered with the above code sets. The City of St. Peters has adopted the 2015 International Residential Code (IRC) with amendments. The following NEW CODES have been adopted by the City of Tyler and will be required on all Building Plans beginning August 1, 2018 2015 International Residential Code, August 2018 2015 International Building Code, August 2018 Code Calculators automatically generates a detailed list of requirements. The City of Austin's Building Technical Codes (Chapter 25-12), contains regulations for Building, Electric, Fire, Property Maintenance, Mechanical, Plumbing, Residential, and Solar Energy. Oklahoma recently adopted a new international roofing code, bringing new standards to roofs throughout the state. You may be looking for our Quick Roofing Guide to the International Residential Code. Notice: 2015 International Residential Code (including appendices E, G, I, J, K, M, and P) (PDF) 3. You may be looking for the Quick Roofing Guide to the International Building Code . The 2015 International Residential Code (IRC) came out last June and the section specifically covering decks (R507) is now up to 6 1/2 pages – the 2012 IRC only has 2 1/2 pages. Valley linings of the following types shall be permitted: For SI: 1 inch = 25.4 mm, 1 pound = 0.454 kg. 2015 Washington State Residential Code. 26 gage [0.019 inch (0.5 mm)] corrosion-resistant sheet metal and shall extend not less than 11 inches (279 mm) from the centerline each way. Where the roof, Where required, ice barriers shall comply with. Valley flashing shall be not less than 15 inches (381 mm) wide. 12. 4284 (PDF) 3. Thermoplastic single-ply membrane roofs shall have a design. Within the U.S., most jurisdictions that adopt building codes have moved toward some edition of the International Code Council’s (ICC) International Building Code (IBC) and the International Residential Code (IRC). For open valleys (valley lining exposed) lined with metal, the valley lining shall be not less than 24 inches (610 mm) wide and of any of the corrosion-resistant metals in. 3) Headwall and sidewall flashing, roof jacks and storm collars are required to be replaced if missing, damaged or rusted. All building permit applications received on or after that date will be required to meet the newly adopted code.Below is a list of the base documents: 1. Interlayment shall comply with ASTM D226, Type I. Capture and share institutional knowledge within your team and company. (A) Section 306.2 of the International Building Code is amended to read as follows: Beverages: over 16 percent alcohol content where the maximum allowable quantities of Table 307.1(1) are not exceeded. ICC Digital Codes is the largest provider of model codes, custom codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures. R101.4.12 Residential Contracting. 2015 International Mechanical Code (PDF) 5. %PDF-1.5 %���� 2015 International Residential Code® Skip to the end of the images gallery. GENERAL INFORMATION: • This checklist is intended for use to prepare for an inspection. Self-adhering polymer modified bitumen. The installation of slate shingles shall comply with the provisions of this section. Roofing Code-Effective July 1, 2015 Building construction in Baltimore County shall comply with the 2015 editions of the International Building Code, the International Residential Code, the International Mechanical Code and the International Energy Code as well as local amendments, all as set forth in County Council Bill Number 40-15. Larry L. Vaught Roofing > Roofing Blog > International Residential Building Code International Residential Building Code Posted December 1, 2012 filed under Gutter services , Roof repair & maintenance , Roofing News . The installation of sprayed polyurethane foam roofing shall comply with the provisions of this section. However, many local jurisdictions have adopted the building codes specified by the Alabama Building Commission. 2015 International Existing Building Code: Provisions related to One- and Two- family dwellings and Townhouses. In areas where the average daily temperature in January is 25°F (-4°C) or less, Wood shingles shall be installed in accordance with this chapter and the manufacturer's instructions. Thermoplastic single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Get everyone on the same page and streamline code research. A. See differences between code years or jurisdictions. And it could put you in a bit of a bind. 2014 National Electrical Code (NEC) Plumbing . The International Codes are not available for purchase or for viewing through the Texas Department of Insurance since they are proprietary documents. It is i… This page references the 2018 International Residential Code. Cricket or saddle coverings shall be sheet metal or of the same material as the roof covering. Click the links below to download the PDF files. 13. R905.3.3.1 Low Slope Roofs. This is done through inspection and code enforcement activity using Internationally-adopted standards. 2014 National Electric Code (PDF) 2015 International Plumbing Code (PDF) 6. 6. E)R907.1 – General. 2015 International Residential Code (IRC) 3. Reroofing is and always will be the predominant project type in the roofing industry. International Building Code ®, 2015 Edition (IBC®, 2015) September 17, 2018. Residential contracting, as defined by section 80 of Chapter 27 of the Acts of 2009, is also regulated by M.G.L. Flashing and counterflashing shall be made with sheet metal. CR206-04 Significant Changes to the 2015 International Residential Code (7) CR206-05 Significant Changes to the 2015 International Residential Code (4) CR211-00 Mold Properties and Prevention (14) CR212-00 Inspecting Building Construction in Crawlspaces (3) The standard calculations contained in ASTM D 7158 assume Exposure Category B or C and building height of 60 feet or less. Each bundle of roofing material comes from the … Spray-applied polyurethane foam insulation shall comply with ASTM C1029, Type III or IV or ASTM D7425. Base and cap flashing shall be installed in accordance with manufacturer's instructions. Roofing Guidelines . Submit this form or email us at, Please contact support@up.codes. Code calculators automatically generate a detailed list of requirements. Roofing‐specific requirements of IECC 2015 May 18, 2017 9 Arizona Roofing Contractors Association Webinar Roofing‐specific adaptation of Table R402.1.1 International Energy Conservation Code, 2015 Edition (Residential buildings) Insulationand Fenestration Requirements by Componenta Climate zone CeilingR‐value 1 30 2 38 3 4 49 5 6 7 International Building Code, Title 51, Ordinance #23394 (November 7, 2015) International Existing Building Code, Title 51, Ordinance #23396 (November 7, 2015) International Residential Code (One and Two Story Dwellings), Title 51, Ordinance #23589 (December 9, 2016) Click Here for modifications to the code adopted by reference. Where siding is provided on the vertical sidewall, the vertical leg of the flashing shall be continuous under the siding. International Residential Code 2015; National Electrical Code 2020; Roofing Code Handout/Checklist; Reroof Inspection Requirements; The City of Lafayette requires a permit for any roof work requiring one square or more of shingles. International Code Council (ICC) Online Code Library. R902.1 Roofing Covering Materials. Please type the text you see in the image into the text box and submit The 2015 ICC International Residential Code (IRC) compiles all building, plumbing, mechanical, fuel gas and electrical requirements for one- and two-family dwellings in one convenient code. However, we will not specify whether or not an entire reroof is required. R101.4.11 International Residential Code. Code requirements change periodically as building codes are updated. Your selected jurisdiction and code year has limited Unpack the code through illustrations and descriptions. Adjacent segments of drip edge shall be overlapped not less than 2 inches (51 mm). endstream endobj startxref Asphalt shingles shall be tested in accordance with ASTM D7158. The regulations cover dwellings and townhouses up to three stories. Foamed-in-place roof insulation shall be installed in accordance with this chapter and the manufacturer's instructions. 2015 International Building Code (including appendices C and K) (PDF) 2. 2015 International Building Code - Ord. View a consolidated view of relevant sections tailored to your project. Click Here for modifications to the code adopted by reference. Minimum headlap for slate shingles shall be in accordance with. Roofs shall be covered with materials as set forth in Sections R904 and R905. Wood shakes shall comply with the requirements of, Wood shakes shall be installed in accordance with this chapter and the, The starter course at the eaves shall be doubled and the bottom layer shall be either 15-inch (381 mm), 18-inch (457 mm) or 24-inch (610 mm) wood shakes or wood shingles. See frequently asked questions regarding these building codes. Now in its. For a good guide to the entire IRC, consider getting DEWALT 2018 Residential Construction Codes: Complete Handbook . Copper, brass, bronze, copper alloy and 300-series stainless steel fasteners shall be used for copper roofs. 1246 0 obj <>/Filter/FlateDecode/ID[<71C97A6995186F28EDDA7E4280F7F4FC>]/Index[1219 55]/Info 1218 0 R/Length 120/Prev 1160972/Root 1220 0 R/Size 1274/Type/XRef/W[1 3 1]>>stream Billed Annually. Building Permit Fees . For multi-family dwellings and - commercial buildings, the applicable code is the 2015 International Building Code, which also requires drip edge in accordance with Section 1507.2.9.3. The 2015 International Residential CodeSection R905.2.8.5 requires an approved drip edge along eaves and rake edges for singlefamily homes. Base flashing against a vertical sidewall shall be continuous or step flashing and shall be not less than 4 inches (102 mm) in height and 4 inches (102 mm) in width and shall direct water away from the vertical sidewall onto the roof or into the gutter.