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HomeMy WebLinkAboutFile Documents.612 W Francis St.0079-2020-BCHO (19)The City of Aspen These plans must be kept at the building site or inspection delays may occur. Construction shall conform to these plans. All changes shall be approved by the building official. Field Plan Set Must Be Printed In Color SEPARATE PERMITS ARE REQUIRED FOR ELECTRICAL, PLUMBING, MECHANICAL, OR FIRE SPRINKLER WORK 0079-2020-BCHO WESTEND 2019 LLC 612 W FRANCIS 273512409015 R311.7 Stairways. R311.7.1 Width. Stairways shall be not less than 36 inches (914 mm) in clear width at all points above the per- mitted handrail height and below the required headroom height. Handrails shall not project more than 41/2 inches (114 mm) on either side of the stairway and the clear width of the stairway at and below the handrail height, including treads and landings, shall be not less than 311/2 inches (787 mm) where a handrail is installed on one side and 27 inches (698 mm) where handrails are provided on both sides. Exception: The width of spiral stairways shall be in accordance with Section R311.7.10.1. R311.7.2 Headroom. The headroom in stairways shall be not less than 6 feet 8 inches (2032 mm) measured verti- cally from the sloped line adjoining the tread nosing or from the floor surface of the landing or platform on that portion of the stairway. Exceptions: 1. Where the nosings of treads at the side of a flight extend under the edge of a floor opening through which the stair passes, the floor opening shall be allowed to project horizontally into the required headroom not more than 43/4 inches (121 mm). 2. The headroom for spiral stairways shall be in accordance with Section R311.7.10.1. R311.7.3 Vertical rise. A flight of stairs shall not have a vertical rise larger than 147 inches (3734 mm) between floor levels or landings. R311.7.4 Walkline. The walkline across winder treads shall be concentric to the curved direction of travel through the turn and located 12 inches (305 mm) from the side where the winders are narrower. The 12-inch (305 mm) dimension shall be measured from the widest point of the clear stair width at the walking surface of the winder. If winders are adjacent within the flight, the point of the widest clear stair width of the adjacent winders shall be used. R311.7.5 Stair treads and risers. Stair treads and risers shall meet the requirements of this section. For the pur- poses of this section, dimensions and dimensioned sur- faces shall be exclusive of carpets, rugs or runners. R311.7.5.1 Risers. The riser height shall be not more than 73/4 inches (196 mm). The riser shall be measured vertically between leading edges of the adjacent treads. The greatest riser height within any flight of stairs shall not exceed the smallest by more than 3/8 inch (9.5 mm). Risers shall be vertical or sloped from the underside of the nosing of the tread above at an angle not more than 30 degrees (0.51 rad) from the vertical. Open risers are per- mitted provided that the openings located more than 30 inches (762 mm), as measured vertically, to the floor or grade below do not permit the passage of a 4-inch-diam- eter (102 mm) sphere. Exceptions: 1. The opening between adjacent treads is not limited on spiral stairways. 2. The riser height of spiral stairways shall be in accordance with Section R311.7.10.1. R311.7.5.2 Treads. The tread depth shall be not less than 10 inches (254 mm). The tread depth shall be mea- sured horizontally between the vertical planes of the foremost projection of adjacent treads and at a right angle to the tread’s leading edge. The greatest tread depth within any flight of stairs shall not exceed the smallest by more than 3/8 inch (9.5 mm). R311.7.5.2.1 Winder treads. Winder treads shall have a tread depth of not less than 10 inches (254 mm) measured between the vertical planes of the foremost projection of adjacent treads at the intersec- tions with the walkline. Winder treads shall have a tread depth of not less than 6 inches (152 mm) at any point within the clear width of the stair. Within any flight of stairs, the largest winder tread depth at the walkline shall not exceed the smallest winder tread by more than 3/8 inch (9.5 mm). Consistently shaped winders at the walkline shall be allowed within the same flight of stairs as rectangular treads and do not have to be within 3/8 inch (9.5 mm) of the rectangular tread depth. Exception: The tread depth at spiral stairways shall be in accordance with Section R311.7.10.1. R311.7.5.3 Nosings. The radius of curvature at the nos- ing shall be not greater than 9/16 inch (14 mm). A nosing projection not less than 3/4 inch (19 mm) and not more than 11/4 inches (32 mm) shall be provided on stairways with solid risers. The greatest nosing projection shall not exceed the smallest nosing projection by more than 3/8 inch (9.5 mm) between two stories, including the nosing at the level of floors and landings. Beveling of nosings shall not exceed 1/2 inch (12.7 mm). Exception: A nosing projection is not required where the tread depth is not less than 11 inches (279 mm). R311.7.5.4 Exterior plastic composite stair treads. Plastic composite exterior stair treads shall comply with the provisions of this section and Section R507.3. R311.7.6 Landings for stairways. There shall be a floor or landing at the top and bottom of each stairway. The width perpendicular to the direction of travel shall be not less than the width of the flight served. Landings of shapes other than square or rectangular shall be permitted pro- vided that the depth at the walk line and the total area is not less than that of a quarter circle with a radius equal to the required landing width. Where the stairway has a straight run, the depth in the direction of travel shall be not less than 36 inches (914 mm). Exception: A floor or landing is not required at the top of an interior flight of stairs, including stairs in an enclosed garage, provided that a door does not swing over the stairs. R311.7.7 Stairway walking surface. The walking surface of treads and landings of stairways shall be sloped not steeper than one unit vertical in 48 inches horizontal (2-per- cent slope). R311.7.8 Handrails. Handrails shall be provided on not less than one side of each continuous run of treads or flight with four or more risers. R311.7.8.1 Height. Handrail height, measured verti- cally from the sloped plane adjoining the tread nosing, or finish surface of ramp slope, shall be not less than 34 inches (864 mm) and not more than 38 inches (965 mm). Exceptions: 1. The use of a volute, turnout or starting easing shall be allowed over the lowest tread. 2. Where handrail fittings or bendings are used to provide continuous transition between flights, transitions at winder treads, the transition from handrail to guard, or used at the start of a flight, the handrail height at the fittings or bendings shall be permitted to exceed 38 inches (956 mm). R311.7.8.2 Continuity. Handrails for stairways shall be continuous for the full length of the flight, from a point directly above the top riser of the flight to a point directly above the lowest riser of the flight. Handrail ends shall be returned or shall terminate in newel posts or safety terminals. Handrails adjacent to a wall shall have a space of not less than 11/2 inches (38 mm) between the wall and the handrails. Exceptions: 1. Handrails shall be permitted to be interrupted by a newel post at the turn. 2. The use of a volute, turnout, starting easing or starting newel shall be allowed over the lowest tread. R311.7.8.3 Grip-size. Required handrails shall be of one of the following types or provide equivalent grasp- ability. 1. Type I. Handrails with a circular cross section shall have an outside diameter of not less than 11/4 inches (32 mm) and not greater than 2 inches (51 mm). If the handrail is not circular, it shall have a perimeter dimension of not less than 4 inches (102 mm) and not greater than 61/4 inches (160 mm) with a cross section of dimension of not more than 21/4 inches (57 mm). Edges shall have a radius of not less than 0.01 inch (0.25 mm). 2. Type II. Handrails with a perimeter greater than 61/4 inches (160 mm) shall have a graspable finger recess area on both sides of the profile. The finger recess shall begin within a distance of 3/4 inch (19 mm) measured vertically from the tallest portion of the profile and achieve a depth of not less than 5/16 inch (8 mm) within 7/8 inch (22 mm) below the widest portion of the profile. This required depth shall continue for not less than 3/8 inch (10 mm) to a level that is not less than 13/4 inches (45 mm) below the tallest portion of the profile. The width of the handrail above the recess shall be not less than 11/4 inches (32 mm) and not more than 23/4inches (70 mm). Edges shall have a radius of not less than 0.01 inch (0.25 mm). R311.7.8.4 Exterior plastic composite handrails. Plastic composite exterior handrails shall comply with the requirements of Section R507.3. R311.7.9 Illumination. Stairways shall be provided with illumination in accordance with Section R303.7. SECTION R312 GUARDS AND WINDOW FALL PROTECTION R312.1 Guards. Guards shall be provided in accordance with Sections R312.1.1 through R312.1.4. R312.1.1 Where required. Guards shall be located along open-sided walking surfaces, including stairs, ramps and landings, that are located more than 30 inches (762 mm) measured vertically to the floor or grade below at any point within 36 inches (914 mm) horizontally to the edge of the open side. Insect screening shall not be considered as a guard. R312.1.2 Height. Required guards at open-sided walking surfaces, including stairs, porches, balconies or landings, shall be not less than 36 inches (914 mm) in height as measured vertically above the adjacent walking surface or the line connecting the leading edges of the treads. Exceptions: 1.Guards on the open sides of stairs shall have a height not less than 34 inches (864 mm) mea- sured vertically from a line connecting the lead- ing edges of the treads. 2. Where the top of the guard serves as a handrail on the open sides of stairs, the top of the guard shall be not less than 34 inches (864 mm) and not more than 38 inches (965 mm) as measured vertically from a line connecting the leading edges of the treads. R312.1.3 Opening limitations. Required guards shall not have openings from the walking surface to the required guard height that allow passage of a sphere 4 inches (102 mm) in diameter. Exceptions: 1. The triangular openings at the open side of stair, formed by the riser, tread and bottom rail of a guard, shall not allow passage of a sphere 6 inches (153 mm) in diameter. 2.Guards on the open side of stairs shall not have openings that allow passage of a sphere 43/8inches (111 mm) in diameter. SMOKE ALARMS AND CARBON MONOXIDE DETECTORS REQUIRED THROUGHOUT DWELLING UNIT PER CITY OF ASPEN MUNICIPAL CODE 8.15 Memorandum Page 1 of 2 KL&A, Inc. 215 N. 12th Street, Unit E Carbondale, Colorado 81623 Telephone: (970) 927-5174 Job Name: 612 W Francis Job Number: B0647.000 To: Email: Company: Joel Hocknell joelhocknell@gmail.com Cyr and Company From: Brett McElvain, P.E. Date: July 1, 2020 Pages Including Cover: 2 re: 612 W Francis Header Modifications for Shade Pockets Cc: Dana Ellis (Rowland+Broughton) Comments: Joel, I have reviewed the photos you sent for the modifications that were made to the existing headers and windowsills to accommodate the addition of the shade pockets. The modifications appear to be in compliance with the details below and our conversation regarding the placement of the A34 clips. 10/21/202006/08/2022 Memorandum Page 2 of 2 If you have any questions or need clarifications, please call. 07/01/2020 10/21/202006/08/2022 SPECIAL INSPECTION REQUIRED: -Structural steel welding: Field & Shop -High strength bolting -Epoxy anchors -Intumescent paint -Spray applied fire resistive materials -Permanent micropiles Special inspection is required per 2015 IBC section 1704. Inspector to verify that copy of agreement for inspection program to be on the job site prior to performing any inspections. A copy of all Special Inspector field reports to be on the job site for inspectors' review if requested. Failure to comply may result in denial of inspection. SEE NOTES #1 PLANS 07/22/2022 justinh GLASS IN GUARDS AND HANDRAILS Glass in guards and handrails shall be two plies equal thickness laminated glass. Tempered glass is only permitted where not above a walking surface and when a top rail that is either self-supported (glass infill panels) or is supported by a minimum of three panes of glass. IRC 308.7/IBC 2407. External Energy Use Approved RREMP CREMP PERMIT #:_______________DATE:________ SNOWMELT:_____________________________ POOL: _____________________________ SPA: _____________________________ OFFSET:________________________________ REMP SHEET: __________________________ REVIEWED BY: _________________________ SNOWMELT SYSTEM AND EQUIPMENT MANDATORY REQ’S. All snowmelt systems shall meet the following: -Any portions in the Right of Way must be on a separate zone. A ROW permit and Permanent Encroachment License are required. -R10 insulation shall be installed under the area to be snow melted or R5 insulation shall be installed under and at the slab edges. (Ordinance 11 Series 2011) -Automatic controls installed for system shut off when pavement temperature is above 50°F and no precipitation is falling. (2009 IECC Sec. 403.8 & 503.2.4.5) -Automatic or manual controls installed for system shut off when outdoor temperature is above 40°F. (2009 IECC Sec. 403.8 & 503.2.4.5) -Inspection by testing hydrostatically at 1½ times max system design pressure, but not less than 100psi, for 15minutes. (2009 IMC Sec. 1208.1) MINIMUM BOILER AFUE: _________________ x MASTER PERMIT 0108.2019.ARBK 0079-2020-BCHO 7/22/22 485 SQ.FT. TOTAL A1.1 95% NONE JH bobn 07/25/2022ZONING REVIEWED BY ZONING 07/25/2022 bobn It should be known that this review shall not relieve the applicant of theirresponsibility to comply with therequirements of the City of Aspen. Thereview and approval by the City isoffered only to assist the applicant's understanding of the applicable LandUse Code requirements. The issuanceof a permit based on constructiondocuments and other data shall notprevent the City of Aspen from requiring the correction of errors in theconstruction documents and otherdata.