Teacher 5 E Lesson Sample

Teacher 5 E Lesson Sample

Did you know that snow is an essential part of the climate system? Building in snow areas needs a carefully established design that takes into consideration sturdiness, pitch, and the entire building envelope. Most often, snow and ice appear unexpectedly. In 2011 there were disastrous events caused by the falling ice in the stadiums during the Superbowl XVL in Dallas (Team, 2018). Even in areas not known for winter like Texas still experience the snow and ice.

 Engage  

Roof collapses occur unexpectedly and can be a catastrophic event caused by loading conditions. It happens without warning hence making it extremely dangerous.  The roofs can be doomed to collapse days or months before the actual event. It is usually caused by deficiency related to construction designs (Byer & Amori, 2014). Loads on roofs can be from any directions and exert positive pressure causing the collapse. However, these loads can be accommodated through structural designs that enable the transfer of the load to the fundamental foundation.

Explore

Carrying out snow and ice assessment gives the data required to determine the need for snow shedding ability or additional roof strength. The assessments begin with the prediction of vulnerable locations. Historical records of snow or falling ice give crucial information that helps in planning for the future. Prevention of sliding snow creates a dangerous condition. Most building designs use fifty years of return criteria to determine the ice loading risk

Explain

The proper slope of the roof needs to be addressed to prevent progressive aggravation and ponding. Start with the pitch of the framing to the intended roof drain location and low point. This requires greater coordination between the engineer and the design architect. The location of rooftop units must be considered and designed to coordinate during the design.

Extend

The students engage in the identification of warning signs and problems for snow damage. Sagging of the roof may strongly indicate the imminent destruction due to heavy snow. Creaking and popping noise is a clear further indication that the ceilings are doomed to collapse (Byer & Amori, 2014). Severe roof leaks and difficulty in opening the windows and doors are a clear indication of the heavy load on the roof.

Evaluate

The student should be able to carry out a snow and ice assessment process effectively. Students should be able to identify the warning signs and problems for imminent damage by the heavy loads in the building.

Conclusion

The basic principle of the design architect and engineer carry out the snow and ice assignment to determine the design requirements. This helps in mitigating the effects of the roof loads and reduce damage rate during the winter weather.

References

Byer, S., & Amori, D. (2014). Structural Deficiencies in Roof Collapses Can Lead to Subrogation Opportunities. Retrieved from https://www.claimsjournal.com/news/national/2014/10/20/256504.htm

Team, W. (2018). Designing a Building to Withstand Heavy Snow. Retrieved from https://www.whirlwindsteel.com/blog/bid/264596/designing-a-building-to-withstand-heavy-snow