Construction of the Western Washington University Electrical and Computer Science building in Bellingham, Washington, which used the GreenGirt CMH Clips continuous insulation system on the building’s walls.
Every project requires different performance and design expectations from continuous insulation systems. While some projects benefit from the use of 8’ Z-girts, others may find success using 6” clips. The GreenGirt CMH™ continuous insulation system offers both 8’ Z-girts and the 6” GreenGirt CMH Clips™ system. A2P offers standard and adjustable clips with the GreenGirt CMH Delta Adjustable™ system. Depending on the project’s performance and design requirements, there is a composite metal hybrid option to meet the demands of the project. This article explains the benefits of using continuous insulation clips or 8’ Z-girts depending on the needs of the project.
GreenGirt CMH Clips & GreenGirt CMH Delta Adjustable

The GreenGirt CMH Clips and the GreenGirt CMH Delta Adjustable systems are well-suited for projects that require intricate detailing, retrofitting, or custom spacing. At 6” in length, the depths of GreenGirt CMH Clips are manufactured in a variety of sizes, from 1.5”-6” wide, customizable to meet your project’s performance requirements.

Benefits
Flexibility and customization – Both standard and adjustable clips are ideal for irregular spacing, variable façade designs, and retrofit projects because they are smaller and adhere to malleable design requirements.
Cost efficiency – Purchasing clips typically has a lower initial material cost and easier storage.
Ease of installation – Clips are easier to handle and maneuver, beneficial in tight spaces or complicated façades.
Reduced waste – Clips can minimize waste by using only what is necessary for the project, since less material is utilized.
High thermal efficiency – While every GreenGirt CMH system delivers the highest thermal efficiency out of any continuous insulation system on the market, GreenGirt CMH Clips and GreenGirt CMH Delta Adjustable can offer even more thermal efficiency due to less material utilized overall.
GreenGirt CMH Z-Girts
GreenGirt CMH full sticks are preferable for straightforward facade installations that demand efficiency and consistency. The full sticks are also offered in a range of sizes, from 1.5”-6” deep, with options for customization upon request.

Benefits
Faster installation – Z-girts are quicker to install due to fewer pieces required and standardized lengths.
Structural continuity – Using 8’ Z-girts provide consistent structural performance and insulation integrity over the façade.
Reduced errors – 8’ Z-girts create a simplified installation process, which reduces the potential for mistakes.
Enhanced performance – GreenGirt CMH Z-girts offer superior continuous insulation compared to other systems available, and eliminates thermal bridging.
High thermal efficiency – Although 8’ Z-girts require more material than clips, the GreenGirt CMH Z-girts offer the highest thermal efficiency of any 8’ Z-girts on the market.
Conclusion
Choosing between GreenGirt CMH Z-girts, GreenGirt CMH Clips, and GreenGirt CMH Delta Adjustable depends on project-specific factors, including complexity, budget, labor constraints, and desired performance. Both options provide their own unique benefits and challenges which could impact installation and performance, but both systems will provide the highest-quality of thermal efficiency and structural integrity, without making sacrifices to other performance requirements of continuous insulation systems.
Get Support on the Best CMH Configuration for Your Project
Struggling to pick between clips or 8’ Z-girts? Our expert engineering team can support you with technical guidance so you can select the best possible CMH configuration for your project based on your performance goals.
Related Resources:
A2P’s High-Performance Solutions for Walls, Roofs, & Windows
Download A2P’s Technical Specs, Details, Drawings, & More
GreenGirt CMH Systems Overview
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Frequently Asked Questions
When should I use GreenGirt CMH clips instead of 8-foot GreenGirt CMH Z-girts?
Use GreenGirt CMH Clips (including GreenGirt CMH Delta Adjustable) when the project needs intricate detailing, retrofitting, custom spacing, irregular spacing, or variable façade design, the smaller pieces are easier to maneuver and can reduce waste. Use 8′ GreenGirt CMH Z-girts when the façade is straightforward and you want efficiency and consistency: fewer pieces, standardized lengths, and a simplified install can help reduce errors while maintaining continuous insulation performance.
What sizes are available for GreenGirt CMH clips and GreenGirt CMH Z-girts?
GreenGirt CMH Clips are 6″ long, with depths manufactured in sizes from 1.5″ to 6″, with customization available to meet performance requirements. GreenGirt CMH Z-girts are 8′ long, offered in sizes 1.5″ to 6″ and 8″ deep, with customization available upon request.
How do GreenGirt CMH clips and Z-girts support thermal performance and reduce thermal bridging?
Every GreenGirt CMH system delivers the highest thermal efficiency out of any continuous insulation system on the market, and that CMH Clips / Delta Adjustable can offer even more thermal efficiency because less material is utilized overall. For 8′ Z-girts, GreenGirt CMH eliminates thermal bridging and offer the highest thermal efficiency of any 8′ Z-girts on the market.

