What this work involves
Assess the roof structure and waterproofing before choosing a green roof. Consider the weight of the complete system.
- Capacity and build-up
- Drainage and perimeter zones
- Planting and maintenance
Use the following design considerations when coordinating this service with a wider project. Agree which parts apply to your request.
Record when the building is temporarily open and what protection is agreed.
What the drawing needs to explain
Create a phase plan showing work zones, usable rooms and bathroom access. Identify temporarily unavailable facilities and their replacements.
Allow for later maintenance
Keep agreements and changes by phase, using consistent room names. Later questions about concealed work and outstanding items remain traceable.
Which trade-off matters?
A short intensive programme and longer phased work have different effects. Compare temporary facilities, access and quiet periods as well as total duration.
Cost factors for this service
Costs depend on area, roof adaptations, system and access. Ask for the scope and selected specification to be described separately.
Bring this to the discussion
Photographs of the existing situation, available drawings and your requirements for green & sedum roofs. Identify the elements that should remain.
Questions about the work
What should I discuss before arranging green & sedum roofs?
Not every flat roof is immediately suitable. Establish whether the structure, waterproofing and drainage can support the proposed system.
The design situations here illustrate choices; they are not completed projects or a diagnosis of your property.