Combined Sill Seal and Termite Shield Using Peel-and-Stick Adhesive
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Solution Overview
Problem
Existing solutions for sealing the space between a foundation and a sill plate and providing protection against termites and other wood boring insects are inadequate, as they either fail to provide a comprehensive seal or require labor-intensive installation and materials that are not durable or environmentally friendly.
Innovation Solution
A combined sill seal and termite shield system using a polymeric foam pad with a metallic or nonmetallic impenetrable web, attached via pressure-activated hot melt adhesives, which forms a durable and long-lasting seal that prevents weather and insect penetration, and is easy to install using a peel-and-stick configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate sealants and termite shields are used, then comprehensive protection is achieved, but installation complexity and labor time increase
Solution Approach 1:
The patent combines separate sealant and termite shield components into a single integrated device. The sealant portion adheres to the foundation and sill plate to seal gaps, while the termite shield portion extends upward to prevent termite infestation. This merging eliminates the need for separate installation steps and reduces overall complexity while maintaining comprehensive protection.
Solution Approach 2:
The integrated device performs multiple functions simultaneously: sealing the gap between foundation and sill plate, preventing water and weather intrusion, and blocking termite access. By consolidating these functions into one product, the patent reduces the number of components needed and simplifies the installation process while achieving comprehensive protection.
2Reliability
If traditional sealants and adhesives are used, then sealing is achieved, but durability and environmental safety deteriorate due to weathering, staining, and galvanic corrosion
Solution Approach 1:
The patent employs composite material construction with a foam core providing sealing capability and an outer layer offering durability and environmental resistance. This composite structure eliminates the durability issues of traditional sealants while maintaining effective sealing, as the materials are selected to resist weathering, staining, and chemical degradation.
Solution Approach 2:
The patent replaces traditional short-lived sealants that require frequent replacement with a durable, long-lasting integrated device. The improved materials and construction extend the service life significantly, reducing maintenance needs and improving overall reliability without requiring frequent reapplication.
3Reliability
If comprehensive sealing and protection is provided, then protection effectiveness improves, but material cost and device complexity increase
Solution Approach 1:
The integrated device is segmented into distinct functional portions: a sealant portion for gap sealing and a termite shield portion for insect protection. This segmentation allows each component to be optimized for its specific function while maintaining an overall simple structure that does not require complex assembly or installation procedures.
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 system effectively seals the gap between the foundation and sill plate, preventing water, weather, and insect intrusion while meeting industry standards for durability and environmental safety, reducing the need for additional sealants and enhancing the longevity of the sill plate.
Implementation Method 1
A combined sill seal and termite shield system using a polymeric foam pad with a metallic or nonmetallic impenetrable web, attached via pressure-activated hot melt adhesives
Data Source
AI summary
Sill seal and termite shield (SSTS) devices are disclosed. The SSTS devices for residential housing are shown for poured concrete, masonry block, and frost protected shallow foundations. The polymeric foam pad of the SSTS device seals the rough surface atop the foundation wall. For the termite shield function, the SSTS devices use a metallic web—either of foil or of an impenetrable screen—or a nonmetallic web—either of plastic sheet or of impenetrable scrim. The termite shield or barrier layer is shown as adjacent to a weatherproofing membrane or as an interior layer of an polymeric laminate weatherproofing membrane. Hot melt adhesives attach the foam pad to the weatherproofing membrane and, where applicable, the barrier layer to the weatherproofing membrane. Pressure-activated, hot melt adhesives attach the SSTS device to the sill plate. A release sheet is applied forming a peel-and-stick device.