Extrusions and backplates come in a variety of forms, allowing for a precise frame that will hold ACM paneling and allow for a Rainscreen system. Extrusions are named for the way that they space out brackets from the base wall, affording space for an air cavity that will push rain and wind through and away from your building. All of the components that we pair with ACM during fabrication are extruded using 6063-T5 Aluminum, for the following benefits:
- The malleable qualities of aluminum make it perfect to extrude.
- Aluminum components are designed to simplify the process of cladding.
- For Rainscreen applications, the non-corrosive nature of aluminum makes it a perfect material to use.
Extrusions come before the panels, Installers fasten the vertical and horizontal end frames first, laying out the full perimeter in which the ACM paneling will be installed. The bottom of the building’s envelope is segmented with half back plates into which a reveal cap is locked. Then come vertical back plates, a long link for uninterrupted sections of the wall, and half link for around intricate areas such as windows and doors. More segmented back plates make up the horizontal brackets that will be fastened to the top and bottom of the ACM panels. These extrusions, by design, lift away from the base wall, so System Clips are added to bridge the gap to ensure structural integrity. With proper Extrusions in place, you can rest easy that ACM panels can be installed securely for a proper Rainscreen.
Extrusions are fastened to the base wall using screws that come in three different varieties, depending on whether the building’s envelope is composed of Wood, Concrete, or Metal. Each fastener type has a corrosion-resistant coating that protects against elemental damage that may incur over years of exposure.