Peel and Stick Waterproofing Material with Polyester Reinforcement
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Solution Overview
Problem
Existing peel and stick waterproofing sheets face issues with granular coatings causing machinery wear and environmental hazards due to dust generation, and they lack sufficient puncture resistance and structural stability for various applications.
Innovation Solution
A self-adhesive protective sheet comprising a thermally bonded non-woven polyester layer with an asphalt layer and a release film, which eliminates the need for granular coatings and provides high tensile strength and puncture resistance, allowing for secure attachment to surfaces without environmental hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If granular coatings are used on waterproofing sheets, then water protection is provided, but machinery wear increases and environmental hazards arise from dust generation
Solution Approach 1:
The patent removes the granular coating layer entirely from the waterproofing sheet structure. Instead of using granules for protection, the invention uses a smooth asphalt layer with embedded polyester fibers that provide water protection without generating dust or causing machinery wear during handling and installation.
Solution Approach 2:
The invention changes the surface characteristics of the waterproofing sheet from granular to smooth by modifying the top layer composition. The asphalt layer is formulated to remain tacky and adhesive without requiring granular additives, fundamentally altering the surface properties to eliminate dust generation while maintaining waterproofing functionality.
2Reliability
If traditional waterproofing sheets are used, then water seepage protection is provided, but puncture resistance and structural stability are insufficient
Solution Approach 1:
The patent creates a composite structure combining asphalt with embedded polyester fibers and a polyester reinforcement layer. This composite material integrates the waterproofing properties of asphalt with the high tensile strength and puncture resistance of polyester, achieving both water protection and enhanced structural stability simultaneously.
Solution Approach 2:
The invention applies different material properties to different layers of the waterproofing sheet. The bottom layer uses asphalt for adhesion and waterproofing, while the top layer incorporates polyester fibers and a polyester reinforcement layer specifically to provide puncture resistance and structural stability where needed.
3Reliability
If peel and stick waterproofing sheets are applied to roofs and foundations, then waterproofing is achieved, but the sheets lack sufficient durability when exposed to environmental effects
Solution Approach 1:
The multi-layer composite structure with asphalt, polyester fibers, and polyester reinforcement layer creates a durable system that resists environmental degradation. The polyester components provide UV resistance and structural integrity, while the asphalt layer maintains flexibility and adhesion, ensuring long-term durability under various environmental conditions.
Solution Approach 2:
The embedded polyester fibers and reinforcement layer act as a protective cushioning structure that prevents punctures and structural failures before they occur. This preemptive reinforcement protects the waterproofing function from environmental damage such as foot traffic, debris, and thermal expansion/contraction.
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 offers a durable, puncture-resistant waterproofing solution that can be applied to various surfaces, including roofs and foundations, without the environmental and health risks associated with granular coatings, ensuring effective water protection and ease of manufacturing.
Implementation Method 1
a first layer of polyester fibers thermally bonded to each other and to a second layer of polyester fibers
Implementation Method 2
a first asphalt layer that is bonded, on a first side to the polyester sheet and on a second side to the fiberglass layer, as a result of the first asphalt layer being partially absorbed by the polyester sheet on the first side of the first asphalt layer
Data Source
AI summary
Disclosed is waterproofing sheeting that uses a polyester layer that provides high lateral stability and puncture resistance. The waterproof sheeting can be used in many applications including waterproof roof underlayments, waterproof sheeting for foundations, underlayment for tile and flooring and various other applications. The waterproof sheeting can be manufactured without many of the problems associated with the granular coatings of existing waterproof sheeting that create excessive wear and environmental hazards.