Dual-Density Insulation Board Shifting Upper Part to Seal Joints
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Solution Overview
Problem
Existing insulation systems for flat roofs face challenges in preventing thermal bridges due to gaps between dual density insulation boards, leading to uneven surfaces and potential damage from water accumulation.
Innovation Solution
The method involves producing insulation boards with a high-density upper part and low-density lower part, where the upper part is shiftable to cover the interface between adjacent boards, ensuring continuous insulation and preventing gaps, and these boards are made of fibrous mineral materials like stone wool with specific density ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If dual density insulation boards are used to support traffic on flat roofs, then load-bearing capacity is improved, but gaps between boards create thermal bridges
Solution Approach 1:
The insulation board is divided into two distinct layers: a lower load-bearing layer and an upper insulation layer. This segmentation allows each layer to perform its specific function optimally - the lower layer provides mechanical strength for traffic support, while the upper layer ensures continuous thermal insulation without gaps.
Solution Approach 2:
Different parts of the insulation system have different densities and properties tailored to their specific functions. The lower layer has higher density for load-bearing capacity, while the upper layer has optimized density for thermal insulation. This local quality differentiation resolves the contradiction between strength and insulation continuity.
2Loss of energy
If dual density insulation boards are used to improve insulation value, then thermal performance is improved, but uneven thickness creates surface irregularities
Solution Approach 1:
The insulation board is divided into two distinct layers: a lower load-bearing layer and an upper insulation layer. This segmentation allows each layer to perform its specific function optimally - the lower layer provides mechanical strength for traffic support, while the upper layer ensures continuous thermal insulation without gaps.
Solution Approach 2:
The solution moves from a single-layer dual-density board to a two-layer structure where the upper layer compensates for surface irregularities. By adding this additional dimension (layer), the patent achieves both high insulation value and uniform surface, resolving the contradiction between thermal performance and surface uniformity.
3Reliability
If multiple insulation elements are used to ensure coverage, then insulation completeness is improved, but handling complexity increases
Solution Approach 1:
The patent merges the load-bearing function and insulation function into a single integrated board product with two layers. This combining eliminates the need to handle multiple separate insulation elements and layers, reducing installation complexity while ensuring complete coverage and insulation continuity.
Solution Approach 2:
The insulation board performs multiple functions simultaneously: the lower layer provides load-bearing capacity for traffic support, while the upper layer provides thermal insulation. This multi-functionality in a single product resolves the contradiction between insulation completeness and handling ease.
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
This approach allows for efficient handling and installation of dual-density insulation as a single product, eliminating cold bridges and ensuring a uniform roof surface, capable of supporting traffic while maintaining high insulation value.
Implementation Method 1
Heat insulation of buildings is well-known and there are numerous systems and products for insulating building surfaces, such as roofs and walls
Data Source
AI summary
The present invention concerns a method for heat insulating a building surface with insulation boards, wherein each insulation board has two parallel main surfaces and four side surfaces connecting the two large surfaces, whereby the insulation boards are arranged adjacently on the building surface with each insulation board having a lowermost of the main surfaces facing the building surface, wherein each insulation board is divided into an upper part and a lower part with an interface that is substantially parallel with the two main surfaces, and wherein the method comprises the steps of arranging an insulation board on the building surface and then shifting the upper part of said insulation board a distance to at least partly cover a lower part of at least one neighbouring insulation board. The invention also concerns an insulation board for use in the method.