Status : Verified
| Personal Name | Josef, Mary Bridget C.; Angeles, Cristina M.; De Guzman, Mia Roselle S. |
|---|---|
| Resource Title | An evaluation of the thermal performance of green roofs in the Philippine context (Quezon City) through parametric field study |
| Date Issued | 2004 |
| Abstract | Foreign studies of green roofs prove that layers such as the growing medium and vegetation have significant effects in the thermal performance of green roofs. If the green roof is to be used in the Philippines, the array of benefits may be expected as well By how much, we do not know yet. Specifically, the properties and behaviors of each layer, like the growing medium and vegetation, have not been quantitatively verifed the significant contributors in the thermal performance. The research-based thesis seeks to answer the question: What is the thermal performance of varying green roof components the Philippine context? An actual field study was conducted at the U.P. College of Architecture using 4 specially constructed modules to test a three parameters: (a) Growing Medium Type; (b) Growing Medium Thickness; and (c) Vegetation Type. To summarize, extreme heat causes the waterproofing membrane to expand. The slab temperature of green roof modules is 30% lower than the benchmark model. Aside from extreme heat, fluctuations in slab surface temperature create thermal stresses that damage of waterproofing membrane, affecting its long term performance and its ability to protect a building from water improve infiltration. The green roof lowers to a fluctuation by 80%. A difference between the outer and indoor temperature will tell us how effective the green roof is in passive cooling. That 3.5" thick growing medium planted with carabao grass reduces the temperature by as much as 30%. Actual heat flow through the roof includes the effects of the inherent thermal resistance of the materials used. Because the benchmark had the lowest term a resistance, it had the highest flow heat flow, while the 10" thick medium with the greatest thermal resistance reduce the heat flow by 85%. A design case study was also undertaken to illustrate in a case study the relevance of the quantitative data generated from the study. Using a simple computation for cooling load, it was foun |
| Degree Course | Bachelor of Science in Architecture |
| Language | English |
| Keyword | Rooftop architecture; Roof gardening |
| Material Type | Thesis/Dissertation |
Preliminary Pages
2.54 Mb
Category : F - Regular work, i.e., it has no patentable invention or creation, the author does not wish for personal publication, there is no confidential information.
Access Permission : Open Access