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Rain screen
A rain screen is an exterior wall construction strategy that utilizes a ventilated cavity between the outer cladding and an airtight, water-resistant inner barrier. This design functions by passively redirecting wind and water away from the building's envelope, allowing any moisture that penetrates the outer layer to drain away or evaporate through the air gap. By equalizing air pressure between the cavity and the exterior environment, the rain screen principle significantly reduces water infiltration and helps protect the underlying structure from moisture-related deterioration.
Frequently Asked Questions
Why is rain screen important in architecture?
A rain screen is an exterior wall construction strategy that creates an air cavity between the outer cladding and the water-resistive barrier to manage moisture. It is important because it provides superior moisture control through drainage and ventilation, enhances energy efficiency by allowing for continuous exterior insulation, and increases the durability of the building envelope by protecting it from rain, wind, and UV damage.
What are the different types of rain screen?
Common types of rainscreen systems include pressure-equalized rainscreens, which balance internal and external air pressure, and drained and back-ventilated systems, which allow for moisture drainage and air circulation. Other classifications include ventilated, open-joint, and closed-joint systems, as well as installation methods such as furring strips, entangled net matrices, grid systems, and specialized mounting clips.
What materials are commonly used for a rain screen, and how do they impact durability and cost?
Common materials for rain screens include wood (cedar or hardwoods like Ipe), metal (aluminum or zinc), fiber cement, vinyl, glass, and stone. High-durability materials like stone and metal have higher upfront costs but offer lower long-term maintenance, while materials like vinyl and cedar are more affordable initially but may require more frequent upkeep or replacement. Improved durability and energy efficiency from rain screen systems can also lead to long-term savings on utility and repair costs.
How can I work with Fabl Design?
To start working with Fabl Design, the first step is to schedule an online video call. During this call, we can discuss your project, expectations, and explore how we can collaborate effectively.
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