Insulated roof outlet with a rectangular cross-section
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Solution Overview
Problem
Existing roof outlets for ventilation and sewage systems lack effective insulation, requiring the use of sealing paste that is difficult to apply uniformly, and do not provide sufficient protection against weather conditions and moisture, while also being time-consuming to install.
Innovation Solution
A pre-insulated roof cap with a longitudinal rectangular cross-section, composed of inner and outer casings filled with polyurethane foam, featuring a flange for secure attachment to the roof, and equipped with a cover and frames for easy installation, ensuring quick and efficient sealing and protection against moisture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional sealing paste insulation is used, then insulation is provided, but it is difficult to apply uniformly and requires more time for installation
Solution Approach 1:
The patent applies preliminary action by pre-filling the insulation material (polyurethane foam) into the casing during manufacturing, before installation. This eliminates the need for on-site insulation application, ensuring uniform insulation distribution and significantly reducing installation time. The insulated casing is delivered as a complete unit ready for immediate installation.
Solution Approach 2:
The patent segments the roof outlet system into distinct functional components: the casing, pre-filled insulation layer, flange, and cover. This segmentation allows the insulation to be professionally applied during manufacturing under controlled conditions, ensuring uniformity, while the assembly can be quickly installed as a complete unit.
2Object-affected harmful factors
If traditional roof outlets are used, then basic protection is provided, but sufficient protection against weather conditions and moisture is not achieved
Solution Approach 1:
The patent employs composite materials by combining the casing (metal or plastic), polyurethane foam insulation, and cover into an integrated multi-material structure. This composite construction provides superior protection against weather and moisture while maintaining manageable structural complexity through functional integration.
Solution Approach 2:
The patent merges multiple protective functions into a single integrated unit: the casing provides structural protection, the pre-filled insulation prevents moisture ingress and thermal loss, and the cover seals the top opening. This merging creates a comprehensive weather-proof solution without requiring multiple separate components.
3Productivity
If pre-insulated casings are used, then effective insulation and quick installation are achieved, but manufacturing complexity increases
Solution Approach 1:
The patent applies preliminary action by completing the insulation filling process during manufacturing rather than during installation. This shifts the complexity to the manufacturing stage where it can be efficiently handled with automated foam injection equipment, while enabling extremely quick installation on-site as a complete pre-insulated unit.
Solution Approach 2:
The patent utilizes parameter changes by employing polyurethane foam that expands after injection. This allows the insulation material to fill the entire casing volume automatically, creating uniform insulation without requiring precise manual application, thereby balancing manufacturing complexity with installation efficiency.
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 solution provides quick and easy installation, effective insulation, and robust protection against weather conditions, while maintaining structural integrity and aesthetic appeal, with enhanced resistance to pressure and fire resistance.
Implementation Method 1
a layer of insulation made of polyurethane foam with a thickness of from 25 to 100 mm, preferably from 30 to 55 mm, most preferably 50 mm
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A
AI summary
The invention is a pre-insulated construction of the end of the duct of channeling installations in rooms and buildings, constituting a roof outlet - cowl that enables instalation - ventilation ducts to be provided through the roof plane and its protected. The invention is used as roof outlet on building roofs, especially in warehouses, industrial buildings, and utility buildings, to protect the ends of various types of installations so ducts such as ventilation, air conditioning, sanitary, and electrical ducts, which are provided inside the outlet, particularly from weather conditions.