Rail Mounts With Threaded Rods for Waterproof Deck Railing
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Solution Overview
Problem
Existing methods for securing railing posts to decks compromise the structural integrity and waterproofing of the deck, and fascia-mounted posts lack strength and resilience, making them unsafe and difficult to service without damaging the deck.
Innovation Solution
Rail mounts with threaded rods are attached to the deck before applying protective layers, allowing posts to be secured without penetrating the waterproof layer, and providing a strong, resilient base for the railing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If posts are secured to the deck by driving bolts into the top layer, then the posts are firmly attached to the deck, but the waterproofing layer is compromised and structural integrity is damaged
Solution Approach 1:
The rail mount is installed on the deck structure before the waterproofing layer is applied. The threaded rods are positioned and secured to the baseplate in advance, allowing the waterproofing layer to be applied over the deck surface without being penetrated by fasteners. This preliminary installation ensures both strong post attachment and preserved waterproofing integrity.
Solution Approach 2:
The baseplate serves as an intermediary component between the deck structure and the post. It distributes the load from the post across a larger area of the deck structure, providing strong attachment without requiring direct penetration of the waterproofing layer by bolts or screws. The threaded rods extend from the baseplate to secure the post, while the baseplate itself is attached to the deck structure before waterproofing.
2Ease of manufacture
If fascia-mounted posts are used, then installation is simpler, but the posts lack strength and resilience
Solution Approach 1:
Instead of mounting the post base solely on the vertical fascia board (one dimension), the baseplate is attached to both the horizontal deck structure and the vertical fascia. The threaded rods extend vertically from the baseplate to receive the post, creating a three-dimensional mounting system that provides superior strength and resilience while maintaining installation simplicity.
3Reliability
If posts are securely attached to the deck, then safety is improved, but servicing and replacement become difficult without damaging the deck
Solution Approach 1:
The system is segmented into distinct components: the baseplate attached to the deck structure, the threaded rods extending from the baseplate, and the post that receives the threaded rods. This segmentation allows the post to be easily removed and replaced by simply unscrewing the threaded rods, while the baseplate remains securely attached to the deck structure, providing ongoing safety without servicing difficulties.
Data Source
AI summary
Described herein are rail mounts that are attached to a structure, such as a deck. The disclosed rail mounts include threaded rods that mate with holes in a railing post to allow the railing post to be attached to the structure using the threaded rods. The disclosed rail mounts are attached to the structure prior to applying any layers designed to protect the structure such that the rail mounts, including the threaded rods, receive the protective layers. A waterproof layer can be applied to the structure after the rail mounts have been affixed so that the threaded rods of the rail mounts extend past the waterproof layer without compromising the waterproofing of the structure. In other words, the waterproof layer forms a waterproof barrier even with the threaded rods extending from the rail mounts through the waterproof layer.