The standard defines a VRA as the modular
vegetated system (pre-grown vegetation in the form of modules, blankets or mats, growth media, root barrier, pavers and drainage system) and the roofing system (deck, membrane, vapor barriers, insulation coverboard, etc.).
Part of the decision was based on what would work structurally with the existing building roof, so the lightest weight
vegetated systems were placed where the roof could only support the lighter weight, and deeper, heavier vegetated assemblies were then placed in other areas where there was additional support capacity.
Not exact matches
Ecoroofs replace conventional roofing with a living, breathing
vegetated roof
system.
The LiveRoof
system is typically
vegetated with a palette of deciduous, semievergreen and evergreen «base mix» and «accent plants» that are exceptional «water conservers».
A green roof — also known as a «
vegetated roof,» «living roof», or «eco-roof» — is an extension of an existing roof which involves a high - quality waterproofing and root repellent
system, a drainage
system, filter cloth, lightweight growing medium, and plants.
With a great cost - to - benefit ratio and significant stormwater retention, this
system supports hardy succulents,
vegetated blankets or pre-
vegetated mats, and may require irrigation depending on the depth of the growth media.
Instead of just adding insulation to improve thermal performance and using a single roofing
system to cover it, the roof on A3C's building is an experimental lab to study a variety of roofing options, including both flat roof membranes and
vegetated roof
systems.
A rainwater catchment
system is connected to the irrigation
system for the
vegetated roof, as well.