Masonry Veneer Wall Tie with Insulation Protection
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Solution Overview
Problem
Existing wall tie systems for masonry veneers in building construction often compress and damage building insulation while securing the veneer to the wall, lacking effective solutions to inhibit insulation compression and provide adequate support.
Innovation Solution
A wall tie assembly comprising a washer and a tie member, such as a strap or wire, with a fastener that penetrates through the insulation to secure the veneer to the wall without compressing it, utilizing a double-thread differential pitch fastener for enhanced engagement and a washer with projections for initial retention on the insulation, allowing the tie member to be positioned within the mortar for support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If existing wall tie systems are used to secure masonry veneer to the wall, then the veneer is anchored to the wall, but the building insulation is compressed and damaged
Solution Approach 1:
A foam block intermediary is introduced between the masonry veneer and the insulation layer. The foam block receives compression forces from the veneer while its cellular structure allows it to compress without damaging the insulation, thereby mediating the interaction between the veneer and insulation to prevent insulation damage while maintaining anchoring strength
Solution Approach 2:
The foam block is installed beforehand as a cushioning element between the veneer and insulation. This pre-positioned cushioning layer is designed to absorb and distribute compression forces, protecting the insulation from direct contact and damage by the anchoring system before any compression occurs
2Reliability
If the tie member is secured firmly to the wall, then compression and tension support is provided, but the insulation is substantially compressed
Solution Approach 1:
The foam block serves as a mediator that allows the tie member to be firmly secured to the wall while preventing direct compression of the insulation. The foam block's compressible cellular structure absorbs the compression forces, enabling reliable anchoring without insulation damage
3Strength
If conventional fasteners are used to attach the washer to the wall, then the washer is secured, but the insulation is damaged during installation
Solution Approach 1:
The foam block is positioned between the washer and insulation during installation, acting as a protective intermediary. This allows conventional fasteners to be used to securely attach the washer while the foam block prevents the fasteners from directly damaging the insulation
Data Source
AI summary
A wall tie assembly is provided for use in building construction for connecting a masonry veneer, such as brick or stone, to a building wall while inhibiting compression of building insulation disposed between an internal wall and the veneer. The wall tie assembly includes a washer through which a fastener is disposed and couples to a tie member. The fastener fixes to the structural portion of the wall through the insulation, such that the washer may interface with the exterior surface of the insulation in a manner to form a seal that prevents moisture and air from penetrating through the aperture formed in a weather barrier of the internal wall by the fastener. The tie member attaches between the head of the fastener and the washer and is bent for positioning within mortar of the masonry veneer of the wall.