![](https://www.madero.ca/content/product-beauty-image/Thresholds_Beauty1_IlthTGx-variants/product_full/Thresholds_Beauty1_IlthTGx.jpg)
![](https://www.madero.ca/content/product-beauty-image/KNCrowder_Beauty2_FUVtwL0-variants/product_full/KNCrowder_Beauty2_FUVtwL0.jpg)
Thermally Broken
CT-Series Frost Barrier Thresholds
CT-45, CT-46
All thresholds are supplied punched with No. 10 x 1-1/2" flat head self-drilling tap-con screws at no additional costs.
This top of the line product is available in almost any shape, dimension, colour, and pattern; special requests can be made available by contacting Penner.
K.N. Crowder is dedicated to supply products that meet or exceed requirements by Architects and Contract Hardware Consultants.
![](https://www.madero.ca/content/product-logos/KNC%2060%20Years%20-%20Cdn%20Owned-Operated_Trans-variants/extra_large/KNC%2060%20Years%20-%20Cdn%20Owned-Operated_Trans.png)
![](https://www.madero.ca/content/product-logos/K%20N%20Crowder%20mfg%20inc_logo_transp_B575ijg-variants/extra_large/K%20N%20Crowder%20mfg%20inc_logo_transp_B575ijg.png)
![](https://www.madero.ca/content/product-logos/Made%20in%20Canada_zAmzGYi-variants/extra_large/Made%20in%20Canada_zAmzGYi.png)
![](https://www.madero.ca/content/product-logos/wheelchair_icon_MkI8fZ9-variants/extra_large/wheelchair_icon_MkI8fZ9.png)
- Designs
- Specifications
- Downloads
![](https://www.madero.ca/content/variant-hero-image/ThermallyBroken_600x600-variants/madero_thumb_square/ThermallyBroken_600x600.jpg)
Thermally Broken
![](https://www.madero.ca/content/variant-hero-image/ThermallyBroken_600x600-variants/madero_full_square/ThermallyBroken_600x600.jpg)
Thermally Broken
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Non fire rated, 1/2" height
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Rigid PVC frost barrier separates aluminum
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Frost barrier serves as a non-conductor of heat & cold
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Widths: 4" and 5"
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Maximum length 16'
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Wheelchair accessible