The basic components of a metal building
Metal building terminology can be confusing if you are not accustomed to the language day in and day out. Truth be, you may just want to know what your contractor is talking about when he is installing your metal building. Let’s dive deeper into the basic components of a metal building.
Rake: The intersection of the plane of the roof and the plane of the endwall.
Rakewall: Installed at the rake or sides of the roof. Covers the edges of the panels to give the roof a clean and finished look.
Sidewall: designed to flash from your metal roof panels to a vertical wall, such as a chimney. Striations and bends on the flashing provide strength and match the lines of your other edge trims. The Universal Sidewall Trim, combined with sealant, provides a watertight seal for your roof system.

Universal Ridge: designed to be installed at the ridge of your building. Striations and bends on the flashings provide strength as well as good looks. The ridge flashing combined with sealant provides a watertight seal for your roof.
Door Jamb: A bolder designed flashing installed around openings in the walls. The square trim shape gives your building a unique look while still covering the framing components.
Endwall: Universal End wall Trim is designed to flash from the high side of the metal roof panels to a vertical wall, such as the front of a dormer. Striations and bends on the flashing provide strength and match the lines of your other edge trims. The Universal End wall Trim, combined with sealant, provides a watertight seal for your roof system.
Base Molding: Base Molding Flashing is designed to be used at the bottom of a wall panel to neatly finish the look of the building. When combined with the Inside Closure it also keeps water and pests from getting behind the wall panel.
Inside Corner: Installed on wall panels at the inside corners of the building. Angled back to the wall panel on each side for ease of installation. Closed hems on each side of the flashing gives the walls a cleaned, finished look.
Eave Trim: designed for the eave (low side) of the building. When gutter is not required, eave molding provides an excellent way of finishing off the low side of the roof panels. The kick out design directs water away from the wall panel below.
Outside Corner: Installed on the wall panels at the outside corners of the building. Angled back to the wall panel on each side for ease of installation. Closed hems on each side of the flashing gives the walls a cleaned, finished look.
Gable Trim: Used at the gable or rake ends of the roof. Covers the edges of the panels to give the roof a clean and finished look.
Hip End: Closure trim designed to be used at the Hip Condition. Height of the flashing is a 1/4″ taller than the Image II panel rib to make installing the open-hemmed hip flashing easier to install.
Valley: Valley flashing is installed under the roof panels where two pitched roof planes meet. This profile is a “w” shape that is 10″ wide on each side, with a 1″ raised rib in the middle to prevent water from moving back up the other slope and help direct it down the roof.
About Metal Sales
Metal Sales Manufacturing Corporation is the premier nationwide provider of metal panels for the construction industry. Metal Sales works with architectural specifiers and commercial construction professionals to create inspirational design solutions. With the industry’s largest and most knowledgeable sales and technical support team, Metal Sales has the expertise to address today’s challenges in high-performance, sustainable and Net-Zero building. Metal Sales has outreach around the world. Delivering outstanding roof, wall and fascia metal panels from its 21 facilities throughout the U.S.
For more information, visit www.metalsales.us.com
To find the nearest branch near you, please visit here.


