Ridge Tile Attachment Using Foam Adhesive Keyways

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Solution Overview

Problem

Existing attachment systems for ridge roof tiles in high wind environments, such as those using wood or galvanized steel, face issues like excessive penetration through the roof underlayment and decking, weight, warping, rotting, denting, and rust, necessitating a solution that provides better primary contact, is lightweight, and resists corrosion.

Innovation Solution

A longitudinally extending rigid member with protrusions and keyways is used, which is secured to the roof using foam adhesive that expands and cures within the keyways, eliminating the need for mechanical fasteners and ensuring secure attachment of the roof tile without penetration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If wood or galvanized steel is used to anchor ridge tiles to the roof, then the ridge tiles can be securely attached, but excessive penetration through the roof underlayment and decking occurs, creating leak pathways

Engineering Contradiction:

Improveattachment strengthVSAvoidleak pathways

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical fastening system (nails, screws, or other mechanical fasteners that penetrate the roof) with an adhesive bonding system. The adhesive is applied between the rigid member and the roof underlayment, creating a chemical bond that secures the ridge tile without mechanical penetration, thereby eliminating leak pathways while maintaining attachment strength.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Strength

If wood is used for anchoring ridge tiles, then attachment is achieved, but the wood becomes heavy, warps, and rots over time

Engineering Contradiction:

Improveattachment capabilityVSAvoidresistance to rot and warping

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The patent changes the material parameter from organic (wood) to inorganic (rigid member made of corrosion-resistant material). This parameter change eliminates the biological degradation processes (rot and warping) that affect wood, while maintaining the structural integrity and attachment capability needed for securing ridge tiles.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs a composite construction approach by combining a rigid member (providing structural strength) with an adhesive bonding system (providing secure attachment without penetration). This composite approach achieves reliable attachment while avoiding the drawbacks of traditional wood materials.

Inventive Principle:

Principle #40Composite materials

3Strength

If galvanized steel is used for anchoring ridge tiles, then attachment is achieved, but the steel is easily dented, has sharp edges, and rusts

Engineering Contradiction:

Improveattachment capabilityVSAvoiddenting and rust

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material parameter from metal (galvanized steel) to a non-metallic rigid material that is inherently resistant to denting and rust. This parameter change eliminates the harmful effects of corrosion and mechanical deformation while maintaining the structural integrity required for secure attachment.

Inventive Principle:

Principle #35Parameter changes

4Strength

If mechanical fasteners are used to secure ridge tiles, then secure attachment is achieved, but installation becomes complex and time-consuming

Engineering Contradiction:

Improveattachment securityVSAvoidinstallation simplicity

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The patent replaces the complex mechanical fastening process (requiring multiple nails or fasteners spaced every six inches) with a simpler adhesive application process. The adhesive is applied in continuous beads along the rigid member, and the ridge tile is pressed into place, significantly simplifying installation while maintaining secure attachment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 solution provides a lightweight, corrosion-resistant, and easy-to-install attachment system that securely affixes ridge tiles to the roof, preventing leaks and offering superior performance compared to traditional systems.

Implementation Method 1

use an adhesive to better secure the ridge tiles to the wood or steel

Methodology Applied

Scientific EffectAdhesive bonding: Adhesive

Implementation Method 2

As the foam adhesive expands it surrounds the protrusions and enters into the keyways

Methodology Applied

Scientific EffectFoam expansion: Foam

Data Source

PatentUS8104231B1Ridge tile system for a roof

Publication Date: 2012.01.31 TIMOTHY M GRABOSKI REVOCABLE TRUST

AI summary

An improved roof ridge apparatus and method for its use includes a longitudinally extending rigid member that has a plurality of keyways located along its top and bottom wall surfaces and extending along the length of the rigid member. The rigid member is placed into a continuous paddy of foam adhesive laid along a roof underlayment and the keyways receive and engage with the expanding adhesive for bonding the rigid member directly to the roof without the need for mechanical fastening. The keyways protrude from the top and bottom wall surfaces. The protrusions provide spacing between the bottom wall surface and the roof and between the top wall surface and a roof tile so that an adequate amount of foam adhesive resides between these wall surfaces and those structures.