Green roofs are a common stormwater control measure used to help mitigate increased stormwater runoff caused by urbanization. Green roofs can retain upwards of 90% of rain given the appropriate conditions. Green roof design parameters, such as substrate composition and depth and plant type, affect the retention capabilities of green roofs by storing and allowing greater extraction of water by p...

Green infrastructure, that is, wet weather management approaches and technologies that infiltrate, evapotranspire, capture, and reuse stormwater to maintain or restore natural hydrologies, can affect temperature in different aspects of the urban environment. Restoration of natural landscape features and local installations of rain gardens, green roofs, green walls, infiltration planters, permea...

The article presents the results of author's research on lost roofs in Munich. Together with buildings significant roof structures were destroyed Second World War. Munich always played a central role Bavaria. importance city grew continuously over centuries. Talented master builders met demanding clients. This resulted prestigious that also terms construction technology. study highlighted most ...

In this paper we describe a procedure for generating building models from large scale vector maps and laser altimeter data. First the vector map is analyzed. The result is used to mask the elevation data of single buildings and to derive a coarse 3D-description by prismatic models. Afterwards roofs are reconstructed by fitting planar surfaces to obtain a polyhedral model.

Urban vegetation, such as vegetated roofs, is highly important for recovering the ecological balance and providing visually pleasant environments. Also, it has potential to reduce urban noise levels. The acoustic surface impedance of roofs can be determined by an in-situ two-microphone technique. However, different initial estimations model parameters retrieve completely sets material propertie...

Wood-frame residential roof failures are among the most common and expensive types of wind damage. Hip roofs are commonly understood to be more resilient during extreme wind in relation to gable roofs. However, inspection of damage survey data from recent tornadoes has revealed a previously unstudied failure mode in which hip roofs suffer partial failure of the framing structure. In the current...