Silicone-Modified Acrylic Sealer for Asphalt Shingle Wind Resistance

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Solution Overview

Problem

Roofing systems in tropical and semi-tropical areas face challenges such as high winds, UV exposure, and humidity, leading to damage, granule loss, and susceptibility to mold, mildew, and algae growth, which weaken asphalt shingles and reduce their lifespan.

Innovation Solution

A water-based polymeric film composition with a low viscosity and specific additives that wicks into asphalt shingles to enhance adhesion, provide UV protection, and prevent moisture infiltration, while maintaining breathability and aesthetic appeal, thereby increasing wind resistance and durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a protective coating is applied to the shingles to provide weather resistance, then the shingles are protected from weather damage, but the aesthetic value of the roof is destroyed

Engineering Contradiction:

Improveweather resistanceVSAvoidaesthetic value

Core Design Contradiction:

ReliabilityVSShape

Solution Approach 1:

The coating is formulated to be transparent or translucent, allowing the original color and appearance of the shingles to show through while still providing protective functionality. This resolves the contradiction by maintaining aesthetic value while achieving weather resistance.

Inventive Principle:

Principle #32Color changes

Solution Approach 2:

The invention uses a thin film coating that penetrates and bonds with the shingle surface without forming a thick opaque layer. The flexible, transparent film provides weather protection while preserving the visual appearance, thus resolving the contradiction between reliability and aesthetic value.

Inventive Principle:

Principle #30Flexible shells and thin films

2Reliability

If a coating is applied to seal the shingles, then water infiltration is prevented, but the ability of the roof to breathe is compromised

Engineering Contradiction:

Improvewater resistanceVSAvoidmoisture buildup from lack of breathability

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The coating is designed with porous properties that allow water vapor to pass through while blocking liquid water infiltration. The porous structure enables the roof to breathe and vent moisture while still providing effective water protection, resolving the contradiction between water resistance and breathability.

Inventive Principle:

Principle #31Porous materials

Solution Approach 2:

The coating extracts and seals only the necessary pores and openings in the shingle surface that would allow water infiltration, while leaving the overall breathability of the roof intact. This selective sealing approach provides water protection without completely blocking vapor transmission.

Inventive Principle:

Principle #2Taking out (Extraction)

3Reliability

If the coating wicks into the shingle structure to seal pores, then water infiltration is prevented, but the adhesion strength may be reduced

Engineering Contradiction:

Improvewater resistanceVSAvoidadhesion strength

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The coating contains adhesion promoters and bonding agents that act as intermediaries between the coating and the shingle surface. These intermediaries ensure strong chemical and mechanical bonding while the coating simultaneously wicks into the shingle structure to seal pores, thus resolving the contradiction between water resistance and adhesion strength.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 significantly enhances wind resistance, prevents algae, mold, and mildew growth, and extends the lifespan of asphalt shingles by improving adhesion and providing a water-resistant barrier without affecting the roof's original appearance, as demonstrated by compliance with state building codes like the Florida Building Code TAS-100-95.

Implementation Method 1

a low viscosity film forming component that has been modified to alter its wetting properties so as to promote wicking of the sealer under asphalt shingles

Methodology Applied

Scientific EffectCapillary action: Capillary Action

Implementation Method 2

a low viscosity film forming component that has been modified to alter its wetting properties

Methodology Applied

Scientific EffectFilm formation:

Implementation Method 3

The sealing composition also includes at least one biocide to protect the roof from algae, mold, or mildew related degradation and staining

Methodology Applied

Scientific EffectBiocidal action:

Implementation Method 4

providing additional UV protection

Methodology Applied

Scientific EffectUV protection: Absorption (EM radiation)

Data Source

PatentUS8058342B1Composition and method of sealing and protecting asphalt shingles or other porous roofing and construction materials

Publication Date: 2011.11.15 ENVIROSEAL LLC

AI summary

Sealing compositions and application methods for sealing and protecting asphalt roof shingles or other porous roofing and construction materials are described for eliminating algae, mold and mildew, increasing granular adhesion, providing additional UV protection and significantly increasing the wind resistance of the roof or other construction material. The sealing composition includes an acrylic polymer that has been modified by a silicone surfactant to alter its wetting properties so as to promote wicking of the sealer under asphalt shingles and at open edges to prevent curling and water infiltration. The method of applying the sealing composition promotes uniform distribution of the product on the surface of installed roofs as well as enhances bonding between individual shingles by improved penetration on and between shingle layers to increase adhesion area.