Adjustable Moisture Release Device for Masonry Ventilation
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Solution Overview
Problem
Existing devices fail to effectively release moisture from buildings, leading to mold and structural integrity issues, particularly in masonry and frame buildings with low-slope roofs and walls, as they do not provide adequate ventilation and moisture vapor release portals.
Innovation Solution
A series of adjustable moisture releasing devices made from corrugated plastic and medium density overlay plywood, designed for use on parapet walls, foundation walls, and joist/truss systems, which allow moisture to escape and prevent condensation, featuring strategically aligned gaps with mortar joints and vapor-permeable membranes to manage water vapor and rain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional building construction methods are used without dedicated moisture release devices, then the building structure is simpler and easier to construct, but moisture accumulates leading to mold and structural damage
Solution Approach 1:
The moisture release device is divided into multiple functional segments: a backer board portion for structural support, a flashing portion for water diversion, and a vent portion for vapor release. These segments work together to comprehensively address moisture management while maintaining construction simplicity.
Solution Approach 2:
The device integrates multiple functions into a single component: it provides structural backing, flashings for water diversion, ventilation for vapor release, and moisture barrier protection. This multi-functionality prevents moisture damage without requiring multiple separate construction elements.
2Adaptability or versatility
If fixed-size moisture release devices are used, then manufacturing and installation are simpler, but the devices cannot adapt to various wall sizes leading to waste or inadequate coverage
Solution Approach 1:
The device incorporates adjustable components including extendable flashing sections and configurable vent placements that can be adapted to different wall heights and configurations. This dynamic adjustability allows a single device design to serve multiple wall size requirements.
Solution Approach 2:
The device allows modification of key parameters such as flashing length, vent position, and backer board configuration to match specific wall dimensions. These parameter adjustments enable the same basic device design to effectively cover various wall sizes without requiring completely different models.
3Reliability
If inadequate ventilation and moisture release portals are provided, then the building envelope is more continuous and weather-tight, but moisture vapor accumulates causing condensation and structural problems
Solution Approach 1:
The device merges the ventilation function with the flashing and backer board components into a single integrated assembly. The vent portion is seamlessly incorporated into the flashing structure, eliminating the need for separate ventilation systems while maintaining effective moisture vapor release.
Solution Approach 2:
The device acts as an intermediary element installed at the interface between the building envelope and exterior elements. It mediates between the need for a continuous weather-tight envelope and the requirement for moisture vapor release by providing controlled ventilation pathways within its structure.
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 devices effectively prevent moisture-related damage by allowing easy escape of water vapor and moisture, reducing condensation, and providing adjustable solutions for various wall sizes, suitable for new and existing constructions, thereby enhancing structural integrity and reducing water infiltration.
Implementation Method 1
vapor-permeable membranes to manage water vapor and rain
Data Source
AI summary
A plurality of devices used alone or in combination for releasing moisture from a building are provided. The devices are especially suitable for use in new or existing masonry and frame buildings with low-slope roofs, on parapet walls and mansard roofs, and on masonry walls and foundation walls. The devices give buildings adequate wall and roof system ventilation and moisture vapor release portals so as to better prevent mold and other water related damage. The devices may be used individually or in combination wherein the devices are placed on or against a parapet wall, masonry wall or foundation wall of a building. Further, the devices may be used in connection with a joist or truss system of a building to prevent moisture damage to the joists or truss system and to prevent compromises and other structural integrity problems to a building which often occur with moisture.