Open Joint Siding System

In these systems the joints between the cladding elements are intentionally left open.

Open joint siding system.

With the right underlayment this rainscreen variant provides waterproofing drainage and a striking appearance. Instead they re deliberately spaced a frac tion of an inch apart which lets air circu late even more freely than it does behind a conventional rainscreen application. Recent trends in the design of exterior claddings have seen an increase use of open jointed rainscreen cladding systems. From the mid 90s to the mid 2000s there were many high profile cases of water damage caused by improperly detailed siding mostly on condos and other multifamily housing.

You may have to register before you can post. This paper discusses the implications of open joints for the performance of rainscreen systems. If your project calls for a panelized look the reveal panel system offers the design flexibility you need. We call it open joint siding and it offers the most breathable energy efficient option for modern shed customers.

With the air gap between the exterior siding panels and the structure a solar heat barrier is created making the system viable not only in wet climes but in sunny ones as well. A zip wall sheathing system is added over the building envelope as an air and water resistive barrier these wall panels install in fewer steps than a traditional housewrap so that the building is finished sooner. In the seattle area where i work we get a lot of rain. Therefore a black housewrap enhanced with uv resistance is a perfect component for an open joint rainscreen cladding system.

The reveal panel system by james hardie can be utilized to create an effective modern durable panelized look. A system of components specifically developed for multi family and light commercial construction. The design concept relies on the performance benefits of a rainscreen which is a gap behind cladding that facilitates drainage and drying. Click the register link above to proceed.

Open joint siding provides extra layers of defense. Called open joint rainscreen it s made up of siding courses that aren t over lapped or butted together in any way. The downside of the open joint design is that areas of the water resistive barrier are left exposed to sunlight. Open joint panel system exterior cladding if this is your first visit be sure to check out the faq by clicking the link above.

Various approaches to the design of open jointed rainscreen cladding systems will be are discussed and some case studies demonstrating the detailing of open jointed cladding systems are presented.