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Reticulated Filter Foam: The Smart Solution for Weep Hole Drainage

When it comes to moisture management in windows, doors, and building facades, proper drainage is critical. But open weep holes can also invite unwanted debris, insects, and dirt. That’s where reticulated filter foam comes in.

This open-cell polyurethane foam is engineered with a three-dimensional reticulated structure that allows water to pass freely while blocking contaminants. The porous design drains quickly—preventing trapped moisture, mildew, and rot—while acting as an effective barrier against insects and dust intrusion.

Used as weep hole baffles or drainage vents, reticulated foam provides a clean, low-maintenance solution that preserves both the performance and appearance of fenestration systems. It’s durable, flexible, and easy to integrate into existing profiles, making it ideal for window and door manufacturers who demand both function and protection.

Filter foam is available to purchase in our online store.

 
 
Reticulated Filter Foam Promotes Drainage while Blocking Bugs, Dirt, and moreReticulated Filter Foam Promotes Drainage while Blocking Bugs, Dirt, and more
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