Boxed Netting Insulation System for Uniform Roof Deck Coverage

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional insulation systems for unvented attics result in non-uniform insulation thickness and inconsistent insulative quality due to bulging netting and exposed structural members, leading to inefficient insulation of roof trusses.

Innovation Solution

A boxed netting insulation system comprising interconnecting support portions with side panel and span segments, attached to roof trusses and sheathing panels, creating uniform insulation cavities with adjustable depth to accommodate loose fill insulation, ensuring consistent insulation thickness and coverage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional netting is used to hold insulation material, then insulation can be installed in attic cavities, but the netting bulges causing non-uniform insulation thickness

Engineering Contradiction:

Improveinsulation installationVSAvoidinsulation thickness uniformity

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The netting is divided into multiple rigid segments or bars connected by hinges, allowing the structure to maintain its shape and prevent bulging while still accommodating the insulation material within defined cavities

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention transitions from a two-dimensional flexible netting to a three-dimensional rigid or semi-rigid framework that maintains fixed spacing and depth, ensuring uniform insulation thickness through structural geometry rather than relying on flexible material properties

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If fabric netting is fastened to major faces of truss chords, then insulation can be held in place, but portions of truss chords remain exposed and uninsulated

Engineering Contradiction:

Improveinsulation installationVSAvoidinsulation coverage completeness

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

Instead of fastening netting to the major faces of truss chords as in conventional systems, the invention attaches the rigid segments to the minor faces or edges of the truss chords, allowing the insulation cavities to extend over and cover the entire surface of the truss chords including previously exposed portions

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The rigid segmented structure serves multiple functions: it holds the insulation material in place, defines uniform cavity depths, and extends coverage to previously exposed truss chord surfaces, making the insulation system universally applicable to all truss chord surfaces

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS9476204B2Boxed netting insulation system for roof deck

Publication Date: 2016.10.25 OWENS CORNING INTELLECTUAL CAPITAL LLC

AI summary

Insulation systems that provide insulation cavities below trusses of residential roofs. The insulation systems are configured to provide insulation material directly below bottommost surfaces of the roof trusses. The insulation systems may include insulation support material that provides insulation pockets below bottommost surfaces of roof trusses. Insulation support material may include side panel segments and span segments. The insulation support material may be attached to the roof trusses or sheathing panels from below the roof trusses and sheathing panels.