Architectural metal cladding, façade systems and building envelope solutions, combining design flexibility with practical manufacturing and installation expertise.
Wall & Facade Systems
Durable metal solutions for public spaces, combining architectural design, fabrication expertise and flexibility for project-specific requirements.
Site Furnishings
Precision metal fabrication backed by advanced equipment, skilled trades and practical design-for-manufacturability expertise.
Metal Fabrication
Subgirts are a primary rainscreen framing component with depths matching common exterior insulation thicknesses that can accommodate a variety of cladding panel attachment methods, making them an essential part of a building’s exterior. For projects requiring enhanced structural integrity and durability, sub-girts offer a versatile and effective solution.
Custom sub-girts, Z-girts, hat channels, angles, and notched profiles are commonly used where cladding, roofing, or exterior envelope components need a consistent support plane over insulation, air barriers, roofing assemblies, or existing substrate conditions. IMARK supplies fabricated support components for rainscreen systems, retrofit recladding, metal panel packages, over-roof applications, and commercial and industrial building envelope work.
Exterior Cladding
Rainscreen systems
Insulated wall assemblies
Commercial and Industrial buildings
Retrofit Roof or Wall projectsSub-girts and Z-girts may be hidden behind the finished cladding, but material selection still matters. IMARK supplies custom sub-girts, Z-girts, hat channels, angles, upstands, notched profiles, and related support components in a range of material options to suit exterior wall assemblies, rainscreen systems, retrofit conditions, and project-specific fabrication requirements.
Z Girts—also known as Z-Bars, Z-Channels, or Zee—are continuous galvanized steel framing members that can be installed vertically, horizontally, or in crossed configurations. Available with varying flange lengths, they accommodate rigid or semi-rigid insulation, helping improve a building’s R-value and thermal performance. This versatile system provides structural support, an insulation cavity, and a secure fastening point for exterior cladding, making it ideal for new construction, renovations, and furring out existing masonry or concrete walls.
Notched Z Girts are similar to standard Z girts except for notching which facilitates the application of the Z girt over a profiled metal liner acting as a vapor barrier. The customization options for notched Z-girts make them adaptable to various project requirements, ensuring that each installation can be tailored to the specific needs of the building.
Notched Z Girt Sizes:
Hat Channel, also known as Furring Channel, is a cost-effective framing component used to level uneven walls and ceilings while creating ventilation space in rainscreen systems. Suitable for drywall, cladding, and masonry applications, it provides a stable, even surface for finishing and installation.
Furring Hat Channel Sizes:
C-Channels are structural framing components used at the top or bottom of wall systems to create an insulation cavity and provide a flush connection to floors or roof assemblies. They can be manufactured with tailored leg and flange dimensions to meet project-specific requirements.
C-Channel Sizes:
Sub-Girts, or substructural components, are used in numerous cladding attachment systems which are designed to offer exterior insulation. Sub-Girts are a type of continuous cladding attachment solution that consists of galvanized steel framing members, typically in 18- to 20-gauge profiles which attach vertically or horizontally to the structural wall. Once installed, Cladding is then attached directly to the sub-girt.
A relatively economical choice, sub-girts are easy to install and designed to minimize field installation time. Depending on the structural wall makeup, sub-girts can be fastened to concrete, concrete block, and mass timber walls. With wood frame buildings, sub-girts can support either studs or the plywood or OSB sheathing. This functionality makes sub-girts an excellent choice for various construction projects, ensuring compatibility with different structural wall types.
Exterior insulation that is installed outside of a wall sheathing is becoming increasingly common across North America. Commonly referred to as exterior insulation, this insulation is installed continuously on the outside of the primary structure. This method helps improve thermal performance and energy efficiency by providing a continuous insulation layer that reduces thermal bridging.
Depending on the thermal requirements of the project, sub-girts can accommodate various thicknesses of rigid, semi-rigid, or spray-applied exterior insulation. One of the most commonly used insulation materials with sub-girts is the Roxul CavityRock semi-rigid insulation. Exclusively designed for exterior cavity wall and rainscreen applications, CavityRock offers superior long-term thermal efficiency, fire resistance, moisture control, and acoustic performance that is compatible with continuous cladding attachment systems such as sub-girts.
-Flexible girt layouts: Vertical girts for tall rainscreen assemblies, horizontal sub-girts for linear or staggered panel joints, and cross-hatched grids for complex façade patterns.
-Insulation-ready profiles: Deep girts align with thicker exterior insulation packages, while slim-profile hat channels support leveling and ventilation in retrofit façades.
-Engineered for project requirements: Available in multiple gauges, thicknesses, lengths, and configurations to suit different loads, spans, and installation needs.
-Reduced on-site waste: Custom lengths minimize cutting, while factory punching and notching support faster, cleaner installation.-
-Material options: Supplied in galvanized G90 steel (standard), aluminum, stainless steel, and cold- or hot-rolled steel.
Contact our construction department to arrange a consultation or submit a form and a representative will contact you.
