Architectural Sheet Meal Wall Panels
Alpine Sheet Metal Systems Installs architectural sheet metal wall systems which offer an array of innovative design possibilities. The creative options are inspiring. The performance, beauty, and sustainability of our products is assured. From Insulated options, materials, finishes and fastening systems Alpine Sheet Metal System has the experiance to ensure your vision is created before your eyes.
Insulated Metal Panels (IMPs)
Insulated Metal Panels (IMPs) are lightweight composite exterior wall and roof panels with metal skins and an insulating foam core. These panels have superior insulating properties, and their outstanding spanning capabilities and one-pass installation makes them quick to install, saving costs compared to other wall assemblies. IMPs are available in a wide variety of colors, widths, profiles and finishes, enabling virtually any aesthetic desired for walls and roofs.
Flush Mounted Wall Systems
Flush Panel Metal Wall Panels are ideal for wall, soffit, fascia, and mechanical screen applications as they have a low profile. This product is a concealed fastened panel available in flat and vented options, which provide a distinct design for any project. Flush Panel is an excellent metal profile for civic, commercial, retail, and other institutional projects.
Once installed, concealed fasteners are not visible on the exterior of the wall. They are hidden inside interlocking panel joints for protection from the elements, creating a smooth appearance that is more aesthetically pleasing than exposed fastener designs. The most common configuration for concealed fastener panels is snap lock joint .
Concealed fastener panels are commonly used for architectural and residential applications.
Concealed fasteners attach to the panels with clips, leaving the panel surface intact. The seams are snapped together manually. Wall panels installed with concealed fasteners are more secure than their exposed fastener counterparts because it is more difficult to reach and remove the fasteners and they are unlikely to back out during panel movement.
Snap-together panels are simple to install and replace when needed.
The clips used in concealed fasteners allow the panels to “float” during thermal movement, eliminating problems with metal fatigue and torn fastener holes.
Concealed fasteners can be installed on substrates of lumber, plywood, cold-formed Cee and Zee sections, hot rolled beams or concrete and masonry.
Concealed fastener construction typically costs more than exposed fastener construction due to the required skill and longer installation time.
The fastener’s size requirement is determined by panel and clip fastener clearances. The manufacturer’s installation guide includes the required fastener length, point and thread type according to the underlying type and thickness of the substrate.
Exposed Fastening Wall Panels
As the name suggests, exposed fasteners are visible and exposed to the environment. Exposed fasteners originated with corrugated sheet-metal buildings where the panels are fastened much like through-fastened roofing, using self-drilling screws or other fasteners. The wall panels are attached directly to the frame supports. Panels are two to four feet wide and limited to 40 feet in length for ease of shipping and handling.
The fastener penetrates the overlapping sections of the wall panel, locking them into place. The method is often referred to as “through-fastened.” Sealant and a washer are placed between the fastener head and the surface to prevent water seepage. After installation, the fastener head remains visible against the exterior of the wall.
Exposed fastener installation is less expensive than concealed fastener and is often found in agricultural or industrial structures where aesthetics is not a concern.
Exposed fasteners are also quicker and easier to install than concealed fasteners, optimal for simple structures erected by unskilled labor.
Typically used for vertical panel installation, exposed fasteners can also be used with horizontal panels as long as the selected panel has deep ribs rather than flat ribs.
While the advantages of exposed fasteners include ease of installation and low cost, there are several disadvantages.
- Since the fasteners pierce the panels, they create points where water can leak into the wall.
- Overtightened fasteners can dimple or bend a panel.
- Panels fastened with exposed screws are unable to move with temperature changes; eventually, the panel may slot around the fasteners that may cause the fastener to loosen or leak.
- Metal fatigue sets in and causes cracks and panel failure under wind loads.
Exposed fastener walls require more frequent inspection and maintenance to prevent panel failure.