Joist End Brackets for Veneered Wall Deck Attachment
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Solution Overview
Problem
Existing methods for securing a deck or roof structure to a brick or siding veneered building structure are unsightly, invasive, and fail to meet building code requirements for load support, particularly in retrofit constructions.
Innovation Solution
A bracket system that supports joist or beam ends from the veneered structure, using apertures in the brick or siding to engage with the wall sill plate or top plate, secured with lag bolts, eliminating the need for a ledger board and meeting vertical and lateral load connection codes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If posts and beams are added adjacent the veneered wall to support a ledger, then the deck structure can be supported without using the brick veneer, but the installation becomes unsightly and requires invasive work such as digging footings near french drains or cutting into patios
Solution Approach 1:
The invention extracts the load-bearing function from the traditional ledger board system and relocates it to the joist ends that bear directly on the brick veneer through hangers. This eliminates the need for additional posts and beams adjacent to the wall, removing the invasive installation requirements while maintaining structural support.
Solution Approach 2:
Instead of supporting the ledger from the wall (traditional approach), the invention inverts the approach by having the joist ends support themselves on the wall through hangers, with the ledger being supported by these joist ends rather than directly by the wall.
2Ease of manufacture
If bricks are removed for the entire area of the ledger, then the ledger can be installed, but the process becomes difficult and expensive
Solution Approach 1:
The invention extracts the ledger board from the equation entirely, replacing it with a system where joist ends with hangers provide the necessary support. This eliminates the need to remove bricks for ledger installation, as the hangers can be installed through smaller openings and the joist ends provide the support function previously requiring extensive brick removal.
3Adaptability or versatility
If a brick veneer ledger connector is used for retrofit installation, then the ledger can be attached to the veneered wall, but the installation becomes very cumbersome
Solution Approach 1:
The invention segments the support function into separate components: hangers attached to individual joist ends rather than a continuous ledger board. This segmentation allows for simpler installation at each location and eliminates the need for complex continuous ledger attachment to the veneer.
Solution Approach 2:
Instead of attaching the ledger to the wall and then supporting joists from it, the invention inverts the sequence by having joist ends with hangers attach to the wall first, which then support the ledger board.
4Reliability
If the horizontal plate of the bracket applies pressure to the brick veneer structure, then the bracket is secured, but unwanted flexing pressures are applied to the brick veneer
Solution Approach 1:
The invention extracts the horizontal pressure application from the bracket system entirely. Instead of horizontal plates pressing against the veneer, the hangers utilize vertical gravity loads transferred through the joist ends to the sill plate, eliminating harmful flexing pressures on the brick veneer.
Data Source
AI summary
A joist or beam hanger for securing deck joist or roof beam ends to a brick or siding veneered wall of a building structure. A horizontal spaced series of apertures are provided in the brick or siding veneer and sized for respectively receiving deck joist or roof beam end brackets. The apertures are located at and expose the wall sill plate or top plate of the veneered building structure wall and the brackets have horizontally protruding sill flanges resting on top of the wall sill plate or top plate and lag screws secure the brackets to the wall and also directly to the sill plate or top plate. Floor joist or roof beam ends of a deck or roof structure are respectively secured to the joist or roof beam end brackets.


