Unvented attic construction using spray foam insulation is a fairly new approach in home building. With it the orientation and type of insulation applied to the top of the building enclosure has changed from the traditional way. Temperature and moisture conditions experienced by various assembly elements will be impacted. In this whitepaper, we will address concerns some in the building industry have expressed with this construction approach.
This course provides guidance for architects, specifiers, waterproofing contractors, and other professionals considering use and advantages in the selection or specification of air and water barriers for the design and installation of integrated structural panel and air and water barrier systems. Topics covered include: introduction to air and water barriers, structural panels, code and regulatory requirements when designing for energy code compliance, and common design and installation practices and techniques.
This course is designed to increase your knowledge of moisture management and continuous insulation technologies in wall assemblies as applied to multi-family building construction. The course will cover drainable wrap technologies, continuous insulation options, proper flashing options, industry standards, and a case study related to multi-family wall assembly performance.
The Importance of Wall Assembly Systems in Moisture Management for Multi-Family, Mixed-Use and Light Commercial Buildings (print version)
This course will discuss moisture management and the value of properly flashed wall assembly systems. It will cover how moisture impacts building durability and the mechanics of moisture movement. The course will identify common design defects that lead to moisture problems, as well as details and wall assemblies that will provide better moisture management. The course will also cover ASTM E2112 methods for flashing openings.
Find out how Tyvek(R) HomeWrap(R) fared during Hurricane Irene, one of the most destructive hurricanes to hit the United States since 1980.
There are several issues with the use of foam sheathing as a water resistive barrier (WRB) and air barrier - even though there are standards that if passed allow it to qualify as a WRB. Issues such as dimensional instability and poor water management that are intrinsic with foam products can be remedied by using a wrap product as the water resistive barrier and to provide continuity at air barrier details. Find out more.
Learn how the DuPontâ¢ TyvekÂ® Fluid Applied System seamlessly integrates with all kinds of substrates and how it was able to meet the specific challenges of a Texas climate.
Applied in a one-coat application by spraying or pressure rolling, DuPontâ¢ TyvekÂ® Fluid Applied Weather Barrier delivers superior protection, offers excellent durability and saves time by providing two to three times the coverage of competitive products per gallon.
What are the potential consequences of unintentional vapor barriers? Why is vapor permeance of building envelope layers relevant to moisture management and long term durability? Durability of the building enclosure is part of a sustainable building design. A designer can significantly affect the service life of multi-component assemblies through materials selection, placement of materials within the building assemblies, or design detailing. Find out what it all means.
The energy efficiency improvement requirements in current and future building and energy codes will affect nearly every aspect of home construction. Weâre here to help you navigate through it all. At DuPont, weâre using our building science to bring you innovative products and service that not only help you meet and exceed code, but also help you continue to build high-quality homes. Let us guide you through.
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