The roof is a forgotten element on most buildings—but it need not be.  Designed and built as a multi-functional element, roofs can be environmentally friendly and aesthetically pleasing.

 

The Barrett Company has over 90 years of successful experience in the roofing and waterproofing industry.  Combining our waterproofing expertise with retained Horticultural technology, Barrett is able to offer building owners the Green Roof–Roofscape®. This state-of-the-art roofing landscape assembly provides the building owner many new benefits:

Conceptually, the Green Roof–Roofscape® turns unused roof space into a park-like garden setting with a keen sensitivity to environmental enhancement.  The Green Roof-Roofscape® is designed around a system of interdependent components which function as a natural planting habitat, creating new types of public and private spaces.

 

With due respect and integration of Feng Shui design principles, a Green Roof-Roofscape® is endowed with an almost indefinable quality that provides serenity, balance, and harmony in otherwise lost space.

GREEN ROOF-ROOFSCAPES®

LOW PROFILE VS. HIGH PROFILE COMPARISON GUIDE

Vegetation (Less than 6") Soil & Growing Medium RamDrain 1241 | Drainage Mat Ram RB 30 | Root Barrier Insulation Ram 203 | Protection Course
DESCRIPTION
  • Thin soil cover, less than 6"  
  • Little or no irrigation
  • Plants are herbs, sedum, moss, wild flowers, and grasses
  • Plants less than 24" tall
  • Also known as "Extensive"
ADVANTAGES
  • Lightweight
  • Suitable for large areas
  • Suitable for roofs with 0°-30° slopes
  • Low Maintenance
  • Often suitable for retrofit projects
  • Vegetation can develop
  • Relatively Inexpensive
DISADVANTAGES
  • Limited Choice of Plants
  • Usually no access for recreation of other uses
  • Some plant choices are less appealing in the winter
GROWING MEDIUM
  • Mineral-based mix of sand, gravel, crushed brick, leica, peat, organic matter, and soil (2.5" - 6")
  • Weight starts at 21 lbs/sq ft
  • Shallowness of soil requires low, hardy plant choice (Typically alpine or desert-type plants)
  • Plants watered and fertilized only until they are established
  • After the first year, maintenance consists of two to three visits per year for weeding, trimming, and general inspection
SOIL MIXTURE
  • Typically 75% mineral and 25% organic soil mix
  • Layered application with organic soil applied over mineral soil
GreenRoof-Roofscapes® (High)
DESCRIPTION
  • Thin soil cover, less than 6"  
  • Little or no irrigation
  • Plants are herbs, sedum, moss, wild flowers, and grasses
  • Plants less than 24" tall
  • Also known as "Extensive"
ADVANTAGES
  • Lightweight
  • Suitable for large areas
  • Suitable for roofs with 0°-30° slopes
  • Low Maintenance
  • Often suitable for retrofit projects
  • Vegetation can develop
  • Relatively Inexpensive
DISADVANTAGES
  • Limited Choice of Plants
  • Usually no access for recreation of other uses
  • Some plant choices are less appealing in the winter
GROWING MEDIUM
  • Mineral-based mix of sand, gravel, crushed brick, leica, peat, organic matter, and soil (2.5" - 6")
  • Weight starts at 21 lbs/sq ft
  • Shallowness of soil requires low, hardy plant choice (Typically alpine or desert-type plants)
  • Plants watered and fertilized only until they are established
  • After the first year, maintenance consists of two to three visits per year for weeding, trimming, and general inspection
SOIL MIXTURE
  • Typically 75% mineral and 25% organic soil mix
  • Layered application with organic soil applied over mineral soil