For more information call 01403 210204

Construction of a sloping green roof on an oak-framed garage / summerhouse

Project Background

Shropshire-based Oak Frame Specialists, Hopewood Oak were approached by a client to design a building to satisfy a number of requirements:

  • Transform a poorly utilised space occupied by an existing structure
  • Provide a covered area for parking
  • Provide a space for family “down time” which connects with the garden
  • Sustainable solution
  • Aesthetically pleasing
  • Blend in with surroundings (area of outstanding natural beauty)

The final design solution was a combined garage and summerhouse with a sloping green roof.

Green Roof Construction

Original Building – Without Green Roof
Oak Framed Replacement Building
Oldroyd Xv Green – Green Roof Drainage Membrane
Overseal Tape – For added protection
Completed Green Roof
Original Building – Without Green Roof

Original Building

Oak Framed Replacement Building

Oak Framed Replacement

Oldroyd Xv Green – Green Roof Drainage Membrane

Oldroyd Xv Green

Overseal Tape – For added protection

Overseal Tape

Completed Green Roof

Completed Green Roof

The green roof was constructed using a typical Scandinavian method which is both simple and proven.

The sloping roof was constructed in the normal way and waterproofed using roofing felt. Oldroyd Xv Green drainage membrane was then laid on top to provide additional protection and drainage. Joins between sections of membrane were double sealed using Oldroyd double-sided tape and Oldroyd overseal tape.

At the edges of the roof, wooden barge boards were installed to retain the growing medium.

Finally, sedum matting was installed over the Oldroyd membrane. Sedum was chosen because it can grow in a very low soil depth and can therefore allow a more “lightweight” green roof solution than other green roof coverings such as turf. This minimised the need for additional reinforcement of the oak structure.

The Result

The green roof blends in beautifully with its surroundings and is a real point of interest for the young family. The photographs on the right show how the space has been transformed.

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For more information call 01403 210204