Full Text
5/18/10 Building Guide Colorado Chapter of the International Code Council How to Use Ibis Guide Provide two sets of plans, drawn to scale and complete the following (hint: use graph paper with ¼” squares. Example: ¼” = 1 1. Complete this Building Guide by filling in the blanks on page two and indicating which construction details will be used, and the R value of insulation used. 2. Provide 2 Plot Plans showing dimensions of your project or addition and its relationship to existing buildings or structures on the property. Show all easements and the distance to existing property lines drawn to scale. Smoke alarms and carbon monoxide alarms are required. The Colorado Chapter of the International Code Council is a professional organization seeking to promote the public health, safety and welfare to building construction. We appreciate your feedback and suggestions. To obtain a master copy of this building guide, please write to the Colorado Chapter of the International Code Council, P.O. Box 961, Arvada, CO 80001. http://www.coloradochaptericc.org City of Lafayette Community Development Dept. 1290 S. Public Road Lafayette, CO 80026 .111 Single Family Residential Addition Plan Size Requirements: Plans must be no larger than 11”x17” in size. 3. Provide 3 Floorplans. Drawn to scale. See example on page 4. 4. Fill out a Building Permit Application. The majority of permit applications are processed with little delay. The submitted documents will help determine if the project is in compliance with building safety codes, zoning ordinances and other applicable laws. 0 , j’1 .1 4 This handout was developed by the Colorado Chapter of the International Code Council as a basic plan submittal under the 2009 International Residential Code. It is not intended to cover all circumstances. Check with your Department of Building Safety for additional requirements. ---PAGE BREAK--- 5/18/10 Single Family Residential Addition Provide roof tie downs Solid 2x blocking between rafters that are 2x12 or greater Note: Pre-engineered roof trusses w/truss clips may be used in lieu of roof structure shown. Diagonal wind bracing or braced wall panels @ corners and each 25 of wall. Note: Pre-engineered floor systems may be used and should be installed according to the manufacturers installation instructions. Property Address:r This handout was developed by the Colorado Chapter of the International Code Council as a basic plan submittal under the 2009 International Residential Code. It is not intended to cover all circumstances. Check with your Department of Building Safety for additional requirements. 2x__rafters spaced__” O.C. or Note: For roofs with slopes less than 4:12, follow manufacturers instructions for low slope application of roofing material. Manufactured Trusses spaced__” O.C. [Sheathing (example: 2 x 12 Rafters Spaced 24” 0G.) rMinimum(ple.I ridge board /f covering [ch I (example: 1/2’ exterior plywood) 1 (example: Class A 3 tab shingles) Ceiling Insulation — (example: R-38) access may be required Note: Attic ventilation and Wall Insulation ] (example: R-20 Fiberglass Balls) joists @ __O.C.J (example: 2 x 8 24 0. Double 2x__top plate (example: 2 x 6) — (example: 235’) J Span C ‘iTT:iiit U Vented Access U Unvented red.. Ceiling height I (example: (example: lap or T-1 11) Wall sheathing (example: ‘/2W exterior plywood) 2xstuds @ O.C. (example:2x6 24”0.C,) Cont. 2x — sill plate (example: 2 x 4) / 2x_ Joists @ O.C. (example: 2x10 @24W 0.0.) Wall width (example:8”) r— 18” minimum — Engineered Design: Cassions may be required if your site has swelling soils. A foundation designed by a Colorado licensed architect or engineer may be required. r Foundation: Engineered Design I U Foundation: Detail A L (see page 3) Footing size “x (example:8X 16W) City of Lafayette Community Development Dept. 1290 S. Public Road Lafayette, CO 80026 2 I ---PAGE BREAK--- 5/18/10 Single Family Residential Addition This handout was developed by the Colorado Chapter of the International Code Council as a basic plan submittal under the 2009 International Residential Code. It is not intended to cover all circumstances. Check with your Department of Building Safety for additional requirements. Site Plan 1. When drawing your plot plan be sure to show the location of electric, gas, sewer and water service lines. If you don’t know where they are, call the Public Service Utility Notification Center of Colorado, 1-[PHONE REDACTED]. They will come out and locate lines for you. Remember to ask them about the cost. 2. Show where tbe existing electric and gas meters are located on your home. These meters may have to be relocated and it is best to know this before you start construction. Floor Plan 1. Smoke alarms and CD alarms. Smoke alarms are required to be hardwired and interconnected in new and existing bedrooms, halls and one on each level unless removal of interior wall or ceiling finishes would be required. In this case, battery operated devices are acceptable. Carbon Monoxide alarms are required on each floor with bedrooms. They are recommended to be located no farther than 15 ft. from any bedroom entrance. Do not install within 15 ft. of a fuel burning appliances. Follow manufacture’s recommendations for location testing and replacement. 2. Additions not to enclose bedroom or basement egress windows. 3. Safety glass is required at specific locations. When you draw in the location of the new windows on the floor plan, the plan reviewer can identify which ones require safety glass. 4. Heat is reqwred in all habitable rooms. Show how the addition will be heated on the plan. Electric Code Existing electric service may require an upgrade or relocation. Indicate the size of your electric service (the number on the main breaker) on your plan. This can help the plan reviewer determine if an upgrade is needed before you start construction. Roof Overframe When constructing a new vley, use a continuous board under the bottom cut of the new rafters to provide a solid nailing surface. The board should be at least 2” thick, nominal and should be at least as wide as the base of the new rafter. 1/2” x 10” steel anchor bolts 6-0” 0_C. max., 7’ mm. penetration max. 12” from corner and 12” from each end of plate (mm. 2 bolts per plate). / Concrete Encased Ground required for new service ished rade 6” mm. 1j.-- Boom plate shall be Note: Maintain at least 18” clear between i g . treated wood or the bottom of the floor joists to the grade Foundation redwood level of the crawlspace, and at least 12” i . under a beam. Insulate wall or floor The crawlspace access must be a minimum — per Chapter 11, I.R.C of 18” x 24” and be unobstructed. Basement may require engineered design. v Provide #4 rebar vert. @ 36” mi 4’-O” 0.C. insert rebar into or bel?w frost concrete footing or key way : #4 rebar mm. continuous top of stemwall & at footing Sealed with 6 mil. polyethylene film Interior grade F City of Lafayette Community Development Dept. 1290 S. Public Road Lafayette, CO 80026 3 I ---PAGE BREAK--- 5/18/10 Single Family Residential Addition o - 0 = 0 0) ‘ . 8 -o G) C (17 - 8 S cc =0 — o 0 cc> 8-c”-o . 8 ° 9 o- 0)0)C.9 9 .2-oEE 0 C’9C C 0 G) =O(j) 0 o -o = S c9S 9 05 ’b Zo- ro2v = - cE oooo . Z LU S Z Z Z D Z