What this work involves
Assess existing layers, moisture, falls and roof edges. Select a system suited to the complete assembly and intended use.
- Roof build-up and material
- Drainage and overflow
- Edges, upstands and penetrations
Use the following design considerations when coordinating this service with a wider project. Agree which parts apply to your request.
Carry facade and roof decisions through to adjoining interior details.
What the drawing needs to explain
Use the same room and detail numbers on drawings and in the room book. Identify the approved revision for each item and which supplier still needs to provide information.
Allow for later maintenance
Organise product and care information by the same room structure. Documentation then remains useful when only one element is replaced later.
Which trade-off matters?
A continuous material palette brings calm, but rooms serve different uses. Decide which qualities should remain consistent and where moisture, sound or intensive use calls for a different solution.
Cost factors for this service
Costs depend on area, removal work, insulation and detailed junctions. 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 flat roofs, bitumen & epdm. Identify the elements that should remain.
Questions about the work
What should I discuss before arranging flat roofs, bitumen & epdm?
An additional layer is only appropriate if the existing substrate is suitable. Assess moisture and the condition of underlying layers.
The design situations here illustrate choices; they are not completed projects or a diagnosis of your property.