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Green roofs can be classed in a number of categories intensive, "semi-intensive", or
extensive, depending on the depth of planting medium and the amount of maintenance they
need.
extensive, depending on the depth of planting medium and the amount of maintenance they
need.
Types of Green Roof roofs
Extensive Green Roofs
minimum of maintenance. Extensive roofs are the most common installations as they are
usually only accessed for maintenance.
They can be install on a very thin layer of "green roof soil" (most use specially formulated
composts): directly onto a watertight roof can support a planting of Sedum species. The
depth of soil can be as low as 50mm in some case, but as a rule , K1 Roofing will not aim
below 100mm unless specified.
Extensive green roofs generally provide greater biodiversity interest than intensive roofs, but
are considered to be less appropriate in providing amenity and recreation benefitsfits. In
most cases they are planted with, or colonised by, mosses, succulents, wild flowners and
grasses that are able to survive on the shallow low-nutrient substrates that form their
growing medium.
minimum of maintenance. Extensive roofs are the most common installations as they are
usually only accessed for maintenance.
They can be install on a very thin layer of "green roof soil" (most use specially formulated
composts): directly onto a watertight roof can support a planting of Sedum species. The
depth of soil can be as low as 50mm in some case, but as a rule , K1 Roofing will not aim
below 100mm unless specified.
Extensive green roofs generally provide greater biodiversity interest than intensive roofs, but
are considered to be less appropriate in providing amenity and recreation benefitsfits. In
most cases they are planted with, or colonised by, mosses, succulents, wild flowners and
grasses that are able to survive on the shallow low-nutrient substrates that form their
growing medium.
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Intensive Green Roofs
Intensive green roofs are principally designed to provide amenity and are normally K1
Roofing can install pathways , roof decks , patios and seating areas
green roofs comprise a lush growth of vegetation and are based on a relatively nutrient
rich and deep substrate.
Intensive roofs allow for the establishment of large plants and conventional lawns.
They traditionally require higher levels of maintenance, regular irrigation and applications
of fertiliser.
Due to the plants used, and the combined growing and drainage properties
of the substrate, the weight of the intensive green roof system can be considerable.
Substantial reinforcement of an existing roof structure or inclusion of extra building
structural support may be required.
Intensive green roofs are principally designed to provide amenity and are normally K1
Roofing can install pathways , roof decks , patios and seating areas
green roofs comprise a lush growth of vegetation and are based on a relatively nutrient
rich and deep substrate.
Intensive roofs allow for the establishment of large plants and conventional lawns.
They traditionally require higher levels of maintenance, regular irrigation and applications
of fertiliser.
Due to the plants used, and the combined growing and drainage properties
of the substrate, the weight of the intensive green roof system can be considerable.
Substantial reinforcement of an existing roof structure or inclusion of extra building
structural support may be required.