Backed Panel Relief Channel Lap Joint Design

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Solution Overview

Problem

Existing insulated siding systems face issues with unsightly gaps, air, moisture, and insect infiltration due to abutting panels, and overlapping panels result in uneven seams that can lead to delamination and damage to the backing panel, compromising thermal insulation and appearance.

Innovation Solution

A backed panel system with a groove or relief channel in the backing panel allows for a smooth lap joint between adjacent panels, minimizing displacement and preventing damage, while maintaining thermal insulation and appearance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If siding panels are abutted side-by-side, then the joint is simple to form, but unsightly gaps are created that allow infiltration by wind, rain, and insects

Engineering Contradiction:

Improvejoint formation simplicityVSAvoidinfiltration by wind, rain, and insects

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The facing panel of the adjacent backed panel is nested into the groove of the backing panel, creating an interlocking joint that eliminates gaps while maintaining a simple assembly process. The groove receives and secures the facing panel edge, preventing infiltration without requiring complex joint formation.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Object-affected harmful factors

If siding panels of adjacent backed units are overlapped, then infiltration is prevented, but uneven or raised seams are created that detract from appearance and may cause delamination

Engineering Contradiction:

Improveinfiltration preventionVSAvoidseam uniformity

Core Design Contradiction:

Object-affected harmful factorsVSShape

Solution Approach 1:

The groove is created only at the specific location where the facing panel needs to be received, while the rest of the backing panel maintains its original structure. This localized modification allows the facing panel to lap over the backing panel without creating an uneven seam, as the groove provides a recessed pathway that maintains surface continuity.

Inventive Principle:

Principle #3Local quality

3Object-affected harmful factors

If siding panels are overlapped, then infiltration is prevented, but breakage or damage to the underlying backing panel may occur

Engineering Contradiction:

Improveinfiltration preventionVSAvoidbacking panel integrity

Core Design Contradiction:

Object-affected harmful factorsVSStrength

Solution Approach 1:

The groove is provided in advance in the backing panel to receive the facing panel of the adjacent unit. This pre-formed recessed portion acts as a cushioning structure that guides and supports the facing panel during installation, preventing direct impact and potential breakage of the backing panel while still achieving the overlap needed to prevent infiltration.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS9309678B1Backed panel and system for connecting backed panels

Publication Date: 2016.04.12 WESTLAKE ROYAL BUILDING PROD (USA) INC

AI summary

A backed panel comprising a facing panel and a backing panel. The backing panel has a groove, recessed portion, or any other suitable type of relief channel adapted to receive a side edge portion of a facing panel of an adjacent backed panel. By providing a space to receive a side edge portion of an adjacent facing panel, the relief channel may enable an improved lap joint to be established between adjacent backed panels.