A rainscreen is an exterior wall detail where the siding ( wall cladding) stands off from the moisture-resistant surface of an air barrier applied to the sheathing ( sheeting) to create a capillary break and to allow drainage and evaporation. The rain screen is the siding itself but the term rainscreen implies a system of building. The basic idea of a rainscreen is to have an exterior surface – a cladding layer – that breaks the force of sideways, wind- driven water movement, so that any water which gets through the small breaches in the surface has lost its momentum.
Every well-designed rainscreen. Together, these critical components form multiple layers of defense to create an . Architects and designers seeking better moisture management and energy efficiency from the exteriors of their projects are turning to rainscreens as a solution for both.
Article on why a rainscreen wall system is the ideal way to provide an attractive, long-lasting, high-performance wall system. Rainscreen walls have had a few different definitions over the years. A pressure-equalized rainscreen (PER) wallis a multiple-line-of-defence approach to rain penetration control. This Update defines pressure equalization and discusses the various elements that must be incorporated in a PER wall to minimize rain penetration due to air pressure differentials.
This CTU discusses the application of the rainscreen principle to the design of exterior walls , building on the concepts presented in Construction Technology Updates No. The rainscreen principle described in Construction Technology Update No. All Metalwërks rainscreen systems feature dry joinery and create a drained and ventilated cavity behind the wall to manage moisture effectively by returning rain water to the exterior of the building and allowing the wall cavity to dry quickly after a rain event. Plus, Metalwërks rainscreen systems permit continuous outboard .
View all EXTERIORS articles. The best way to protect the structure, siding, and paint or stain from moisture damage is to design the outer layer of the house as a decorative “rain screen”. A rain screen should be sturdy enough to block most of thewind and rain, but porous enough to dry to the exterior . As wall systems evolve, masonry contractors are increasingly being asked to install rainscreen wall systems.
Early examples of rainscreens can be found in the wall. This is as opposed to buildings in which the external surfaces are formed by structural elements, such as masonry walls , or applied surfaces such as render. Your application will determine whether a barrier- wall or a rainscreen system is the best option. To help you decide, here are some pros and cons.
Bob Griffiths, Architectural Technical Sales Specialist, Firestone Building Products. UBC Life Sciences Building – Brick Veneer . Figure 1): a rainscreen (i.e., vented cladding), a compart- mented air chamber and an air barrier system. The air chamber com- partments must be small enough, the air barrier system must be airtight. Pressure Equalization in.
Intercept modular metal panel systems interrupt conventional thought on rainscreen wall systems to inspire spectacular visual. With countless combinations, colors and multiple finish options, Intercept panels can inspire the artist at the core of every architectural designer. PERS greatly minimizes and under certain weather conditions can eliminate water in the rainscreen cavity.
Walls that dry are walls that last for a long, long, time.
An air gap between the siding and sheathing lets both dry independently. Furring strips are one way to make that air gap. They have to control the movement of moisture, air, vapor and heat and look good doing it.
Parameters are given for determining how to vent a rain screen properly. Masonry rain screen walls can take many forms. Sample details are shown for various rain screen wall and joint systems. Ten key features to look for in rain . DETAILING A RAIN-SCREEN WALL.
Furringstrips space the clapboards awayfrom the wall, creating a vent space that helps to dry the back of the siding. Layered tar paper and flashings behind the furring strips create what is called a drainage plane, which alone would protect the house from water, even if there were no .