Chimney Blocks

Our chimney blocks are typically made from:

SCE45B Neoprene Foam for Spiral Balance Chimney Blocks 
2# ClipFoamTM for Constant Tension Balance Chimney Blocks 
2# ClipFoamTM for Block & Tackle Balance Chimney Block

If you’re looking for a different material, we are able to provide other options by special request.

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Product Overview

Chimney blocks expand to conform to channel dimensions, minimizing air and water filtration and can be made to fit your channel profile. Improve window efficiency by preventing chimney effect leaks.