Flexible Framing Gasket Profile for Air Seal Settlement Gaps
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Solution Overview
Problem
Existing foam framing gaskets in construction are not deformable, leading to voids and air pathways that compromise the air-tightness of buildings as they settle and deform over time.
Innovation Solution
A flexible, deformable gasket with a specific profile featuring taller and shorter points, made of materials like rubber or closed-cell polystyrene foam, that maintains an air seal by adapting to structural deformations and voids, using a stem-and-convex-cap design to interlock and block air pathways.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If foam framing gasket tape is used with flat sides and adhesive, then ease of installation is improved, but air-tightness deteriorates as buildings settle and voids form
Solution Approach 1:
The gasket is segmented into multiple rows of convex elements (caps or bulbs) along its length, creating a series of discrete sealing zones. Each convex element acts as an independent sealing unit that can deform and adapt to voids locally, while the adhesive backing provides continuous attachment. This segmentation allows the gasket to maintain air-tightness even when some segments experience settlement or void formation.
Solution Approach 2:
The gasket features convex elements with curved surfaces (caps or bulbs) rather than flat surfaces. These spherical/curved profiles allow the material to deform more effectively under compression and settle into voids, maintaining contact with framing surfaces. The curvature enables the convex elements to bridge gaps and maintain sealing pressure despite building settlement.
2Manufacturing precision
If rigid foam tape is used for framing gasketing, then manufacturing precision is improved, but adaptability to structural movement deteriorates
Solution Approach 1:
The gasket is constructed from flexible foam material that can deform and flex as the building settles and moves. The material's inherent flexibility allows it to adapt to structural movements while maintaining its sealing function. The convex elements can compress and reshape themselves to maintain contact with framing surfaces during settlement.
Solution Approach 2:
The gasket utilizes changes in material properties under different conditions. The foam material changes its density and compressibility characteristics under compression, allowing the convex elements to deform and adapt to voids. This parameter change enables the gasket to transition from a rigid manufacturing form to a flexible in-service state that accommodates structural movement.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The gasket maintains air-tightness by flexing and adapting to structural changes, preventing air leakage despite settling and void formation, ensuring energy efficiency and comfort.
Implementation Method 1
with an adhesive backing, which may have a liner, on one side
Implementation Method 2
The entire gasket is made of flexible, deformable material, such as, but not limited to, rubber or polyethylene material
Data Source
AI summary
A framing gasket for use in construction. The gasket has a base with a plurality of rows of raised elements extending upward from one surface, each row with a stem-and-cap profile in cross section, with a stem extending upward from the first surface to a cap. The gasket is flexible and deformable, and provides a flexible air seal between framing elements in a building or structure wall. The profile allows for natural voids and deformation in framing elements while maintaining an air seal.