Weathering [DN-29]-Weathering [DN-29]

Weathering [DN-29]

Pdf Summary

The document discusses the importance of weathering in the architectural design of buildings and how it can enhance or detract from the appearance of a building. It explains how weathering occurs when dirt or air pollutants combine with wind and rain to interact with the wall materials. The document also discusses the effects of weathering on different building materials, with a focus on precast concrete. It explains that staining and dirt accumulation are common weathering problems, but they can be minimized through proper design and maintenance. The document also discusses the role of water runoff and the importance of controlling water flow to prevent dirt buildup on building surfaces. It explains how the design of building elements, such as coping and drip grooves, can help control water flow. The document also discusses the impact of pollution on weathering and the importance of considering local conditions when designing buildings. It provides guidelines for choosing surface finishes that have self-cleansing properties and can resist weathering. The document also mentions the use of self-cleaning concrete, which uses photocatalytic cement to decompose pollutants and keep the surface clean. The document concludes by providing information on how to earn continuing education credits by completing a quiz on the topic.

Keywords

weathering

architectural design

building appearance

precast concrete

water runoff

staining

dirt accumulation

pollution

local conditions

self-cleaning concrete