L-Shaped Wind Spoiler for Roof Turbulence
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Solution Overview
Problem
Existing roofing systems are vulnerable to damage from hurricane-force winds due to the creation of low-pressure areas over roofs, which can lift shingles and cause structural damage, as prior art solutions like clips and braces fail to eliminate this pressure.
Innovation Solution
An up-standing elongated wind spoiler is fastened along the roof line, extending upward to disrupt airflow and reduce low-pressure areas, featuring an L-shaped configuration that automatically deploys during high winds to prevent air from flowing under shingles and minimize lifting forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If prior art clips or braces are used to reinforce the roof edges or mechanically reinforce the roof to joists, then the roof structure is strengthened, but the low pressure area caused by wind flowing over the roof is not eliminated
Solution Approach 1:
The patent extracts and addresses the root cause of the problem by introducing a wind spoiler that actively disrupts the airflow over the roof, thereby eliminating the low pressure area that clips and braces fail to address. This removes the harmful aerodynamic effect at its source rather than merely reinforcing against its effects.
Solution Approach 2:
The wind spoiler acts as an intermediary element between the wind and the roof, disrupting the airflow pattern before it can create the harmful low pressure area. This mediator approach prevents the formation of the problematic pressure differential that clips and braces cannot eliminate.
2Object-affected harmful factors
If a fixed wind spoiler is installed along the roof line, then airflow disruption and low pressure reduction are achieved, but the aesthetic appearance and integration with the roof design may be compromised
Solution Approach 1:
The patent employs a dynamic wind spoiler that can rotate or adjust its position, allowing it to be aerodynamically effective when needed while maintaining a streamlined or hidden appearance during normal conditions. This dynamic capability resolves the conflict between functional performance and aesthetic appearance.
Solution Approach 2:
The wind spoiler's orientation or position parameter can be changed based on wind conditions, allowing it to transition between a functional state for airflow disruption and a concealed state for aesthetic purposes. This parameter adjustment enables the system to satisfy both contradictory requirements.
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 wind spoiler significantly reduces the likelihood of roof damage by disrupting airflow and minimizing low-pressure areas, effectively preventing shingle peeling and structural damage during high winds, while returning to a stowed position when winds decrease.
Implementation Method 1
As such, wind blowing against a building must flow further to go over the roof of the building than it would otherwise flow along the surface of the earth. Therefore, the wind flowing over the roof accelerates and creates a low-pressure area over the roof.
Implementation Method 2
The elongated member functions as a 'wind spoiler' to aerodynamically disrupt or 'spoil' the air flow over the roof during high winds conditions.
Data Source
AI summary
A wind spoiler including a vertical member mounted vertically along a roof of a structure to extend above the plane of the roof for creating turbulence in wind flowing over the roof.