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.
Include shelter, opening elements and shading in the glazing decision.
What the drawing needs to explain
Draw sightlines from two seats and show shading positions. Review the same layout in daylight and with interior lights on; privacy works differently in those situations.
Allow for later maintenance
Keep controls and glazing accessible with the final furniture arrangement. Store glazing and shading instructions together, including any restrictions on cleaning products.
Which trade-off matters?
More glazing does not automatically make a better room. Compare continuous glass with a combination of glazed and solid wall areas so views, furniture and shelter each have a place.
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.