Roofing that fits the extension programme
Builder coordination
We plan roofing stages around structure, openings and the wider site sequence.
Old meets new securely
We detail wall abutments and drainage where the extension joins the property.
Covering options compared
We match tile, slate, EPDM or felt to the roof design and required finish.
Fit the roof into the wider build programme
An extension roof has to connect with more than four new walls. It meets the original building, follows the structural design and must be ready at the right stage of the wider project. We carry out extension roofing in Northampton for private customers and builders, covering pitched and flat designs. Coordination helps us plan openings, insulation interfaces, covering levels and external finishes before later trades close off access. We discuss slate, tile, EPDM or felt according to the pitch, structure and intended appearance. The aim is a roof that belongs to the extension and joins the existing property without leaving a weak line between old and new.
The old-to-new junction gets careful attention
Where an extension meets the original wall or roof, rainwater must be directed across the change without slipping behind the covering. We plan abutments, lead flashing and drainage transitions for that junction. Gutters and outlets are considered early so water from both roof sections has a clear route away. On suitable pitched extensions, a Velux window can also be planned around the rafters and surrounding tiles or slate. We work with builders on active sites and use drawings, dimensions and build-stage information to prepare. That coordination reduces the chance of discovering too late that an opening, wall level or outlet sits in the wrong place.
Frequently asked questions
Do you work directly with builders on extension roofs?
Yes. We regularly carry out extension roofing for builders and can coordinate with the active project. Drawings, dimensions, build stage and access information help us plan the roofing work around structure, openings and other trades.
Should an extension have a flat or pitched roof?
That depends on the design, available height, structure, drainage and desired appearance. Pitched roofs may use slate or tile, while flat designs may use EPDM or felt. We discuss the roofing route that suits the planned build.
How is the join to the existing house weatherproofed?
The exact detail depends on how the new roof meets the original wall or covering. We plan abutments, flashing and drainage transitions so rain is directed back onto the roof surface and towards the intended gutters or outlets.