Project · Warm Roof

Bournemouth Warm Roof Extension

A warm roof for a brand-new extension in Bournemouth, designed to take a new skylight that brings more natural light into the space.

Location

Bournemouth

System

Single ply membrane warm roof, 120mm insulation

Scope

New extension roof with skylight

The Project

A Warm Roof Built Around a Skylight

The occupants of the property asked us to create a warm roof as part of a brand-new extension. From the outset we were aware that the flow of natural light through the extension was not as good as it could be, so we suggested installing a skylight, and the roof was designed to take this into account.

The main challenge was designing the roof to prevent condensation building up inside, with the skylight itself a potential source of condensation. The roof also needed to be well insulated to keep a comfortable internal environment, and the skylight had to be waterproofed against the elements.

Vapour control layer sheet laid once the timber work was complete

120mm thick insulation boards for a consistent temperature

Single ply membrane fully adhered to the boards

Skylight installed with a waterproofing membrane

Bournemouth Warm Roof Extension: roof works

Bournemouth Warm Roof Extension: finished detail

Outcome

Dry, Bright and Guaranteed

Once the timber work was completed, our team laid a vapour control layer sheet to prevent condensation and protect the interior from unwanted moisture. We then fitted 120mm thick insulation boards and finished the roof with a single ply membrane fully adhered to the boards.

Finally, the skylight was installed along with a waterproofing membrane designed to keep out heavy rain and snowfall. The client was pleased with the outcome, and a 20-year guarantee covers the entire roofing system.

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