Roof Curbs

Metal building roof curb
Man building steel building roof curbsView Video
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The Roof Curb
Offers Steady
Support for
Steel Building Accessories

Keep your metal building roof accessories safely in place, and create a level foundation that helps avoid unnecessary equipment wear and damage, with roof curbs from Metallic Products. Watertight builds keep moisture outside where it belongs, protecting your structure against mold, mildew and related issues. Meanwhile, with a wide range of color and finish options available, your roof curb will blend seamlessly with your steel building’s overall look.

Metallic Products’ roof curbs feature integral flanges which work with any metal roof panel, and are made to match specified roof pitches — both single-slope and ridge mounted. Included crickets divert water around the roof curb, while optional foil scrim kraft (FSK) faced rigid board insulation offers additional thermal protection. The roof curb is a low-maintenance steel building accessory that keeps moisture at bay and helps keep your structures strong for the long term.

Spec Sheet
Quote Request Form

Roof Curb: Full Details & Specs

Construction
Roof curbs feature rugged 16-gauge galvanized steel construction. Corners are mitered and welded watertight using a siliconized bronze wire for a long-lasting and non-corrosive finish. Welds are finished with a protective zinc primer. FSK faced rigid board insulation is optional.

Design
The roof curb is made to match any roof slope and can be either ridge or single slope mounted. Curb corrugations match virtually any available roof configuration and can be factory welded into curb skirts or shipped loose for field installation.

Curbs can also be constructed utilizing a two-piece design, with a separate under-panel diverter to achieve a shingling effect without the need to cut into roof panels.

Finish
Painted to match most metal buildings after fabrication. View MBCI Color Chart for available colors.

Options

  • Peak or slope mount roof profile
  • Corrugated or non-corrugated builds
  • Ribs attached or loose

Note: When ordering, please indicate size, roof panel type, if insulated, if painted, and roof slope.

Install Instructions

Install information is available for all
roof curb varieties.

Download Install Info
Roof curb for steel building accessories

Roof Curb FAQs

Get quick answers to common questions about roof curbs and how they provide secure, weathertight support for rooftop equipment on metal buildings.

A:

Roof curbs create a level, stable foundation for rooftop HVAC units and other equipment. They help distribute weight evenly while elevating equipment above the roof surface, promoting proper drainage and helping protect against moisture intrusion.

A:

In many applications, yes. Roof curbs provide the secure mounting surface needed for rooftop exhaust fans while helping create a weathertight seal around the roof opening. Specific requirements will vary based on the equipment manufacturer and your project’s design.

A:

Standard roof curbs provide structural support and weather protection, while insulated roof curbs include insulation that helps reduce heat transfer and condensation. The right choice depends on your building’s performance requirements and the equipment being installed. Metallic Products offers options for both.

A:

Yes! Roof curbs can be manufactured to accommodate a wide range of equipment sizes, roof slopes and metal panel profiles. Custom fabrication helps ensure a precise fit and long-lasting performance for your specific application.

A:

Proper flashing creates a weathertight seal between the roof curb and the metal roof, helping direct water away from the opening and prevent leaks. Installation methods vary based on roof design and panel profile, so it’s important to follow the manufacturer’s installation instructions for the best results.

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