![]() ![]() A more complex and demanding type of green roofs: Site-Built multi-Layered green roofs And also do not expect a free-maintenance system. It's not easy to find plants able to survive in the extreme temperatures and weather conditions of rooftops, and it's very difficult or impossible to have healthy plants for long in plastic trays. Modular green roofs are unsuitable for many cold and hot climates, or in windy areas. Concerns about leaks and the weight of the system and its maintenance requirements are founded. Consider carefully your climate, the conditions on the top of your roof, and the type of plants. You don't have to remove the vegetation, soil and drainage system just to remove some trays.īe cautious, anyway. ![]() With them it's easy to find leaks and fix problems with the roof. They are simple to install, and much cheaper (expect prices of at least $8 per square foot). The advantages of modular systems over other more complex systems are obvious. Image: GreenGrid Roofs (Modular Roof Manufacturer) The advantages of modular green roofs Obviously, the plants should be selected to withstand extreme weather conditions. The plants come already grown in plastic trays, designed to allow direct attachment and easy drainage. Modular green roofs are relatively simple to implement, compared to other types of green roofs. Building The most simple type of green roofs: modular green roofs But we should weigh their pros and cons, and consider their cost-effectiveness. In this last sense they can be seen as part of home low-energy strategies, intended to reduce air conditioning costs. Green roofs are mostly designed with environmental goals in mind, namely to reduce the very high summer urban temperatures (the urban heat island effect ) and as part of a strategy to reduce heat gains through the roof. See: Green Roofs Pros and Cons Green roof goals Make sure whether a green roof is right for your climate and for you.Ĭonsider potential problems involving their weight, leaking, maintenance, wind and long-term survival of the plants.Īnd do not forget the high costs of green roofs. We can think of green roofs as an extension of an existing flat roof, based on a very good waterproofing membrane and a layer of plants over it. Green roofs should not be seen as small gardens installed on the roof of our buildings, to attract birds or other small animals or as a spaces for leisure or to provide beauty. G reen roofs can be seen as flat or very low-slope roofs, partially or completely covered with vegetation they are mostly of two great types 1) modular, that is, built with pre-vegetated plastic trays 2) or site-built with a layer of soil and vegetation. Types of GREEN roof construction and plants used in them ![]()
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