Rainscreen and Exterior Cladding: Used in open joint rainscreen, ventilated façade , curtain wall or standard siding applications, our Proteak wood rainscreen and Richlite RainShadow™ rainscreen come as complete systems or raw teak lumber and Richlite exterior claddin sheets. We stock, fabricate or source all the parts for the suspension system and will happily suggest some less expensive replacements for our higher quality sub-frame, fasteners, weather barriers, insulation, rainscreen battens, or furring strips. Proteak is FSC® certified farmed teak and has huge environmental benefits versus damaging exterior tropical woods species like Cumaru, Garapa and Ipe, FSC® certified or not. Richlite is different and less expensive than other phenolic panels like Trespa® Meteon®, and Prodema® exterior panels. It has great benefits versus fiber cement. We sell the Proteak strips and Richlite panels pre-sized and custom cut for use with your system. You'll find that we're very open source versus the competition when it comes to selling our raw material. Consolidating our experience, interviewing experts, and curating all the confusing information surrounding the term rainscreen is a real goal of ours.
Pressure equalized rainscreens, curtain walls and open joint facades are used interchangeably in the United States. In addition to any modular exterior wall system with gaps and a substantial air space behind it, traditional lap siding or stucco with a vent on the top and the bottom and an airspace behind also get tossed in. These are better labeled screen drained systems. While all these terms suggest a façade that doesn't carry any dead load weight from the building other than its own, the application and meaning can be quite different especially when it comes to proper installation, component parts and ability of a building to cope with water ingress, the bane of any building owner. Open joints or an air gap do not make a system "pressure equalized," that much is certain.
Careful detailing of flashing, suspension systems and building wrap are the keys to success. The vast majority of both commercial and residential projects we see use substandard flashing and any old weather barrier. An open joint rainscreen really depends on good flashing details and drip edges. The right weather membrane and a well-executed drainage plane are requirements. It's shocking to see a ten story, multi-million dollar building that uses pressure treated wood furring strips behind large phenolic panels, a recipe for disaster. Our decorative elements are superior from an environmental standpoint, and we're in the business of selling panels and lumber, but at the end of the job, the things you don't see are really as important as the things you do see when it comes to overall implementation success.
We often see Richlite and Proteak used in projects featuring large, open joints. In this situation, we strongly recommend DELTA®-FASSADE S by Cosella-Dörken as a UV-resistive, black, and weatherproof membrane. We feel this way to the point that we carry it not for profit, rather to guarantee the success of our systems in a critical area, the house wrap or WRB. To help achieve your design goals, Delta Fassade S can withstand continuous opening up to 50mm(2 inches) and 40% of the net surface area of the façade. This contrasts to 20mm or 30mm for most other products and often at the expense of reduced lifespan. Good wrap, suspension and flashing are well worth the price. To download a guide about weather membranes and DELTA®-FASSADE products, click here.
We are happy to help you with your project and offer advice. We rely on experience and are agnostic when it comes to systems or components, looking only for quality. Please visit the specific Richlite RainShadow™ rainscreen and Proteak teak wood rainscreen sections for the most environmentally sustainable choices in long lasting and maintenance free cladding.
For an American made phenolic composite rainscreen panel, Richlite is a great choice. Since the 1950s Richlite has been used outdoors. Most rainscreen systems cost considerable more per square foot and we don’t limit your choice of suspension systems or have minimum orders. Learn more about Richlite RainShadow »
Our Proteak FSC rainscreen offers the only green option when it comes to weather resistant tropical wood siding systems. Don't settle for "Brazilian Teak" or an Ipe rainscreen. We have a variety of sizes for use in lap wood siding and teak is easier to machine than other tropical woods used for decking and cladding. Learn more about Proteak FSC Wood Rainscreen »