ROOF CURBS
Welcome to MicroMetl’s Rooftop Curbs Resource Center
Selecting the right rooftop curb is a critical part of any RTU installation. From standard configurations to fully customized designs, curbs determine how well a rooftop unit integrates with the building, the ductwork, and the overall system performance.
With decades of experience manufacturing both standard and custom rooftop curbs, MicroMetl provides clear guidance on how to evaluate your options and make the best choice for your project—whether you’re addressing pitch, height, load support, or compatibility with existing ductwork.
Explore our articles to learn best practices, installation tips, and practical insights from real-world field experience.
Have a question or a specific curb challenge you’d like us to cover?
Send it our way—we may feature it in an upcoming blog post.
Adjustable Pitch Roof Curb – A Complete Guide!
Adjustable pitch roof curbs are a variation of Knockdown Curbs that can be customized during installation to suit a roof pitched up to 1” in 12” in ANY direction. There are many situations in which an adjustable pitch roof curb is preferable to a fixed pitch curb… Read Why!
How Do I Measure For A Curb Adapter – Video
You’re on the roof to replace the Rooftop Unit (RTU). The unit nameplate is so worn you can’t decipher the model number, even yet the brand or manufacturer. It is never practical to break the integrity of the existing roof to remove the existing Curb. Therefore, you must measure the existing curb and order a Curb Adapter.
How To Calculate A Roof Pitch… And Measurement Improvisation
Measuring for pitch is a simple process. This article is intended to explain the basics, then discuss issues not often addressed. Let's jump right in! The Necessary Tools To Measure The Pitch of a Roof A level at least 12 inches in length, tape measure, and...
HVAC – What Is An Adjustable Pitch Curb?
The Adjustable Pitch Curb is designed to pitch in any direction, and ships knockdown. It is less expensive than a fixed welded pitch curb, and offers job-site flexibility.
Choosing The Correct Seismic Roof Curb – Understanding The Specifications
Choosing The Correct Seismic Roof Curb – Understanding The Specifications A previous MicroMetl Blog defined Seismic Curbs. Now that we understand the definition of seismic roof curbs, how are they applied in the real world? It is…
HVAC Burglar Bars – Do They Work And Where Do They Belong?
Innovative criminals will try anything to gain access into a building. So when conventional breaking and entry methods either fail, or appear too risky, burglars often attempt entry through Heating, Ventilation, and Air-Conditioning (HVAC) systems.
What Are Seismic Roof Curbs?
What Are Seismic Roof Curbs? The Merriam-Webster Dictionary defines Seismic as… “From subject to, or caused by an earthquake; also : of or relating to an earth vibration caused by something else (as an explosion or the impact of a meteorite).” I’m thinking if your...
Are Welded Rooftop Curbs Worth The Additional Cost?
The Pros & Cons Of The Welded Rooftop Curb Are Welded Curbs Worth the Additional Investment? Welded curbs can be a time saver when compared to knockdown curbs. They're delivered fully assembled. Just put them in place, no need to square your new curb, and no...
Knockdown Rooftop Curbs Defined and Explained!
Knockdown Rooftop Curbs Defined & Explained! What is a Knockdown Roof Curb? The Knockdown Curb ships un-assembled, can be easily stored in your inventory, and is your least expensive option when it comes to rooftop curbs. With the use of some basic tools, it is...
Common Rooftop Curb Types Defined
Common Rooftop Curb Types Explained & Defined! When placing a new Rooftop Unit on a curb, you have so many choices. So I’ve assembled a summary of the most common curbs, and I’ll explain what differentiates them. Knockdown Curb – This curb ships unassembled, and...
