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Wall Systems WBDG Whole Building Design Guide. Introduction. The basic function of the envelope or enclosure of a building or structure is to protect the covered or otherwise conditioned interior spaces from the surrounding environment. This fundamental need for shelter is a concept that is as old as the recorded history of mankind. However, as our needs have evolved and technologies have advanced, the demand placed on designers to both understand, and integrate, a wide range of increasingly complex materials, components, and systems into the building enclosure has grown in equal proportion. This is particularly true when one considers the emerging threat of terrorism and the impact of that threat on the design and construction of the building enclosure. However, despite the recent emphasis on blast resistant wall systems and hardening of the building enclosure see the Blast Resistance section for additional information on this topic, uncontrolled rainwater penetration and moisture ingress remain two of the most common threats to the structural integrity and performance of the building enclosure. This guide, and the additional resources referenced herein, is intended to facilitate a better understanding of the basic principles behind heat, air, and moisture transfer including bulk rain water penetration and precipitation management through the exterior walls of a building or structure. Envelope-Budget.jpg' alt='Online Envelope Budget Software' title='Online Envelope Budget Software' />Specifically, it focuses on six 6 commonly specified exterior wall systems in the United States, and illustrates how proper selection, use and integration of the various materials, components and systems that comprise those wall systems is critical to the long term durability and performance of the building enclosure. The details associated with this section of the BEDG on the WBDG were developed by committee and are intended solely as a means to illustrate general design and construction concepts only. Appropriate use and application of the concepts illustrated in these details will vary based on performance considerations and environmental conditions unique to each project and, therefore, do not represent the final opinion or recommendation of the author of each section or the committee members responsible for the development of the WBDG. Description. Selected Terms and Definitions. The following is a summary of selected terms and phrases used throughout this design guide. The definitions provided below are not intended for general design and construction application. Dave Ramsey Envelope Budget SoftwareInstead, they are intended only to provide a general understanding of these terms as they relate specifically to building envelope design and performance as discussed in this design guide Exterior Cladding Generally defined as a protective layer or finish affixed to the exterior side of a building enclosure system. The term cladding is often used as a general reference to a wide variety of naturally occurring and synthetic, or man made, building envelope materials, components and systems. Gta Vice City Gasoline there. Typically, these elements are quarried, manufactured or otherwise developed andor altered to render them suitable for use on the exterior of a building or structure, and are frequently derived from, or tailored to, the available resources, raw materials and climatic conditions unique to a particular geographic region or exposure. Exterior cladding is generally the first, though not necessarily the primary line of defense against bulk rainwater penetration. Wet Zone The section of an exterior wall system or assembly that is intended, by design, to be exposed to the short and long term effects of bulk rainwater penetration andor moisture ingress. Typically, it is the zone located on the outboard side of the innermost drainage plane in an exterior wall system or assembly. Dry Zone The section of an exterior wall system or assembly that is not intended to be exposed to the short and long term effects of bulk rainwater penetration andor moisture ingress. Typically, this is the zone located on the inboard side of the innermost drainage plane in an exterior wall system or assembly. Materials in this zone often have a relatively low moisture tolerance, and very little, if any, storage capacity for moisture. Drainage Plane Any element exposed to weather or otherwise residing at the line between the wet and dry zones of an exterior wall system or assembly. This plane is generally intended to be either waterproof and vapor impermeable or water resistant and vapor permeable depending upon wall type, material selection, and climate, and is designed to shed bulk rainwater andor condensation downward and outward in a manner that will prevent uncontrolled water penetration into the conditioned spaces of a building or structure. In a barrier wall system, the exterior cladding also serves as the principal drainage plane and primary line of defense against bulk rainwater penetration. In cavity wall construction, however, the principal drainage plane and primary line of defense against bulk rainwater penetration is located inside the wall cavity, generally on the inboard side of the air space either directly applied to the outboard surface of the exterior sheathing layer or, in the case of insulated cavity walls, on the outboard surface of the rigid or otherwise moisture impervious insulation layer. Envelope-Budget-Tracker-2.1.5.jpg' alt='Best Envelope Budget Software' title='Best Envelope Budget Software' />The Best Personal Finance Software of 2017 Weve been reviewing personal finance software for nearly 12 years. This year, we spent more than 100 hours evaluating 20. ECCC Of NYS, Section III 1 rev. III. Envelope Compliance Guide Envelope Requirements This guide covers the energy code requirements for building. Air Barrier Any element, or combination of elements, that is intended, by design, to control the movement of air across an exterior wall system or assembly. In order to remain effective, the air barrier must a reside within the wall assembly b be continuous in three dimensions from roof to wall to foundation, c consist of materials and components that are, either individually or collectively, sufficient in stiffness and rigidity to resist air pressure differentials across the exterior wall assembly without permanent deformation or failure and d be durable and structural rigid to withstand the construction process. The interior and exterior air pressures across an air barrier system that need to be examined include, but are not limited to, pressures caused by wind, stack effect, and mechanical systems. Air barriers may be located at different locations within a wall system, and the placement of the air barrier needs to be indicated by the designer on the drawings. Please see the table and details within the WBDG that show various methods of forming an air barrier system. Some materials that are part of the air barrier may also have vapor retarder properties. The designer must carefully consider placement of the air barrier when the air barrier materials will act both as an air barrier and as a vapor retarder to determine if drying of the system will be inhibited by the location of this material within the assembly. Portions of the air barrier may require regular maintenance and an allowance should be made within the design to accommodate this maintenance. Air Retarder Any element that effectively resists or otherwise slows, either intentionally or unintentionally, the rate of airflow across an exterior wall system or assembly. Depending upon its measurable level of resistance to airflow, the air retarder can, in certain instances, be incorporated into the overall air barrier for an exterior wall system or assembly. However, these products alone typically cannot prevent airflow across a wall assembly and, as such, should not be used in lieu of an effective air barrier. View Details Budget. Manage your money to get out and stay out of debt. Personal finance software based on the envelope method of budgeting.