Drier By Design – Designing to Keep Water Out
With erosion paths cut into solid rock as solid evidence, water in various forms contains immense power to eat away or destroy whatever is in its path. Whether it takes a year, two hundred or ten thousand, without intervention, water can and will destroy our man-made structures. Once a problem develops that opens a pathway for intrusion, one rainy season can render a building unsuitable for human use.
We have the knowledge and tools to combat such destruction of our structures. We implement counterattacks in the design stage, during construction, and afterwards with proactive maintenance, but the battle against water begins in the design phase.
Moisture resistance principles and methods are discussed in a systematic fashion, as in one building system at a time. Fundamentals are first covered, including basic principles of water behavior and the multiple paths it takes while invading buildings. A thorough knowledge of how destruction begins and escalates drives the known design principles and material decisions used to stop such migration. Practical solutions are then discussed in detail.
The discussion is needed. The physical price tag for both our structures and their occupants is too high to allow water free entry into our occupied spaces.
This course teaches the following specific knowledge and skills:
- A basic understanding of how water moves, migrates, and behaves
- Typical sources of excess moisture in our built environments
- Proactive prevention of unwanted moisture through planning and design
- Methods used during construction to prevent the intrusion of water
- Post-construction prevention of leakage by building envelope inspection
- Common points of failure through which water can gain entrance
- Prevention of water intrusion through control of condensation
Drier By Design–Designing to Keep Water Out
1. Glossary of Terms Regarding Water Intrusion
2. Water Behavior
- General Water Infiltration
- Hitting a Moving Target
- But There are Rules
- Under Pressure to Admit It
- Different Problems in Different States
3. Moisture Problems
- Searching for a Source
- Mold Growth in Buildings
4. Wet by Design
PREVENTION THROUGH DESIGN
1. Recommendations for Design
2. Construction Methods Used to Exclude Moisture
3. Tools for Analysis and Design
SOURCES OF WATER
2. Site Drainage Issues
3. Entrapped Moisture
4. Reasons Why Envelopes Leak
- Defining a Building Envelope
- Methods and Materials Meant to Exclude Water
- Known Problems with Wall Systems
- Using Envelope Diagnosis to Find Leaks
- Pen Test
- Common Reasons for Envelope Failure
WATER AND BUILDING COMPONENTS
1. Buildings from Wood
2. Thinking Through Building Components
- Structural Framing Design
- Foundation Design
- Foundation Leaks
- Wall Envelope Design
- Design of Interior Finishes
- Glazing System Design
- 4.2.7 Roof Design
3. Moisture from Plumbing Leaks
4. Moisture from HVAC Systems
5. Moisture from Ventilation Systems
6. Moisture from Condensation
- Causes of Condensation
- Cold Weather Condensation
- Hot Weather Condensation
7. Tightening the Envelope
8. Vapor and Air Retarders
9. Combatting Negative Air Pressure
PRECLUDE INFILTRATION PROBLEMS BY DESIGN
1. Preventing Leaks by Planning
- Moisture Control Design Principles
- Designing Components to Prevent Leaks
2. Controlling Moisture During Construction
- Credit(s) earned on completion of this course will be reported to AIA CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available to print upon completion of the course.
- This course is registered with AIA CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA or any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.
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