Window Installation Sealing With Foam and Wrap Against Infiltration

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Solution Overview

Problem

Existing methods of installing windows and doors in buildings lead to moisture and air infiltration, resulting in condensation, rotting of construction materials, and increased heat and cold conductivity, which are costly to address.

Innovation Solution

A method involving a window frame with matching shape and size to fit into a rough opening, secured with flanges extending over framing members, sealed with rubber bonding tape and building wrap, and filled with extruded polystyrene foam to prevent air and moisture infiltration and improve thermal insulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If windows and doors are installed using conventional methods, then installation simplicity is maintained, but moisture and air infiltration occurs leading to condensation and rotting

Engineering Contradiction:

Improveprevention of moisture and air infiltrationVSAvoidinstallation process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-coating the rough opening frame with bonding tape and building wrap before installing the window or door. This preparatory sealing action ensures that the framing members are already protected against moisture and air infiltration before the actual installation, preventing condensation and rotting from occurring in the first place

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements the nested doll principle by creating multiple layers of protection within the rough opening structure. The bonding tape is applied first, followed by the building wrap, and then the window or door unit is installed within this nested protective system. This layered approach ensures comprehensive sealing against moisture and air infiltration

Inventive Principle:

Principle #7Nested doll (Nesting)

2Loss of energy

If gaps are left between framing and window/door for installation, then ease of installation is maintained, but conductive flow of heat and cold increases

Engineering Contradiction:

Improveheat and cold conductivityVSAvoidinstallation ease

Core Design Contradiction:

Loss of energyVSEase of operation

Solution Approach 1:

The patent uses flexible thin films in the form of bonding tape and building wrap to seal the gaps between the framing and the window or door. These flexible materials can conform to the irregularities in the gap spaces, providing effective thermal barriers that reduce conductive heat and cold flow while still allowing for straightforward installation

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The patent employs composite materials by combining bonding tape and building wrap in a layered configuration. This composite sealing system provides enhanced thermal resistance compared to single materials, effectively reducing heat and cold conductivity through the gaps while maintaining installation simplicity

Inventive Principle:

Principle #40Composite materials

3Reliability

If conventional installation methods are used, then installation speed is maintained, but condensation and mold growth occur over time

Engineering Contradiction:

Improveprevention of condensation and mold growthVSAvoidinstallation process simplicity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements preliminary anti-action by applying bonding tape and building wrap to the rough opening frame before window or door installation. This pre-sealing action counteracts the potential for moisture and air infiltration before it can cause condensation and mold growth, preventing the harmful effects before they manifest

Inventive Principle:

Principle #9Preliminary anti-action

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

Prevents moisture and air infiltration, reduces condensation, and enhances thermal insulation by maintaining a gap and using foam to stabilize the window, thereby reducing heat and cold conductivity.

Implementation Method 1

The gap between the window frame and the rough opening frame is filled with a sprayed extruded water-resistant foam

Methodology Applied

Scientific EffectPhysical containment: Physical Containment

Implementation Method 2

reducing conductive flow of heat around the window

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 3

installing a rubber bonding tape so that it extends over each of the plurality of flanges

Methodology Applied

Scientific EffectAdhesion: Adhesive

Implementation Method 4

installing a building wrap over the wall so that the building wrap extends over the window bonding tape

Methodology Applied

Scientific EffectWater resistance: Hydrophobe

Data Source

PatentUS12584347B2Installation method

Publication Date: 2026.03.24 SMITH EARL M

AI summary

Needless repairs can be avoided, and energy savings can be achieved, through installation of windows using methods that incorporate the use of extruded water-resistant foam, bonding tape covering the flanges and fasteners or windows and building wrap covering the bonding tape. This system becomes part of the window, system to improve strength, air and moisture penetration Also eliminating the building wrap bonding tape at the head prevents trapping moisture behind build bonding tape. This system eliminates all voids around the window and frame and becomes part of the structure of the window, etc.