Specifying a running slope of 7.5% maximum and a cross slope of 1.5% maximum for exterior ramps will accommodate most irregularities or variances due to construction methods or materials according to a study sponsored by the Board ("Dimensional Tolerances in Construction and for Surface Accessibility" by David Kent Ballast.) Recommendation: Providing the least possible slope below the 1:12 (8.33%) maximum offers better usability for a wider range of users. Variations in slope, such as grade breaks within runs, can disrupt The running slope (1:12 maximum) and cross slope (1:48 maximum) are permitted. To be uniform along a run, although slight variations may occur withĬertain materials such as concrete. It also canīe expressed as a percentage, pitch, or in degrees. Slope represents the proportion of vertical rise to horizontal lengthĪnd is specified in the Standards as a ratio (e.g., 1:12). Portions ofĪccessible routes with running slopes steeper than 5% also must be Elevators and, under certain specifiedĬonditions, platform lifts, can be used as an alternative. Ramps and curb ramps are required along accessible routes to spanĬhanges in level greater than ½”. These annotations are prefaced with begin and end image notes. Some images are paired with visually hidden notes. In this document ″ indicates inches and ′ indicates feet. Notational tips for users of screen reading software follow. This guide explains requirements in the ADA Guidance on the International Symbol of AccessibilityĬhapter 10: Recreational Boating FacilitiesĬhapter 10: Swimming Pools, Wading Pools, and Spas A built-in power boost helps keep the door closed even when it is exposed to high wind or stack pressure buildup.Chapter 3: Clear Floor or Ground Space and Turning SpaceĬhapter 6: Washing Machines and Clothes Dryers Engineered for high traffic entrances and heavy-duty applications, the ED250 is suitable for doors up to 800 lb.ĮD250 operators are tested for one million cycles in climate-controlled test chambers that replicate severe weather conditions. The ED250 full power operator is designed for demanding applications such as retail centers, airports, and health care facilities. With a multitude of adjustable features, you have the flexibility to fine tune the door to meet your specific needs-all without the need for special tools or hand-held programming terminals. The ED100 operator is ideal for ADA-compliant entrance applications. These complete factory-engineered door systems meet all of the stringent requirements of ANSI 156.10, ANSI 156.19, and U元25, as well as NFPA 252 90-minute fire rating when used with rated doors and hardware. The ED100 functions as either a low energy operator or a power operated pedestrian unit and can be modified with the flip of a switch. All common applications for outswing and inswing doors-either with push arm or slide track arm for tight side clearance -can be adapted for barrier-free access. Every ED50 unit is custom-ordered to match the application. Simple and easy to install, the ED50 provides many features and functions to make existing doors easily accessible. The ED50 low energy operator is the perfect solution for barrier-free access applications.
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