What keeps a flat roof dry for longer
Falls designed in early
Drainage positions are thought through at the design stage, before the waterproof layer goes on.
Junctions treated seriously
Edges, flashings and wall connections get proper attention because they do the hard work.
Roof use shapes the detail
Size, access and intended use all influence the right structure and covering choice.
A flat roof only works if the whole system does
A flat roof does not stay dry by magic. It needs the structure, deck, insulation, vapour control and waterproof covering to work as one system, with falls directing water to the right outlets instead of letting it loiter where it pleases. When you speak to Envision Brickwork Ltd about a London new flat roof, we start with the shape and use of the space below, because an extension roof, a conversion roof and an outbuilding roof do not all ask for the same detailing. The weatherproofing is only as good as the weakest junction.
Built in sequence, not patched together
We build the roof in a clear sequence, from structural preparation and deck installation through insulation, coverings and final drainage checks. With Envision Brickwork Ltd, upstands, parapets, flashings, rooflights and wall junctions are treated as critical details, not bits to be sorted in a hurry on the day. That matters because trouble usually starts where one surface meets another, not across the middle of the roof.
Frequently asked questions
How do you stop water sitting on a flat roof?
The roof needs planned falls and well-positioned outlets so rainwater moves where it should. That has to be considered before the waterproof covering goes down. If drainage is treated as an afterthought, the roof usually lets you know about it sooner rather than later.
Can rooflights be included in a flat roof build?
Yes, but they need to be detailed properly. Rooflights change the junctions, the upstands and sometimes the structure around them, so they are best planned as part of the whole roof rather than dropped in as a late extra when the covering is already being discussed.
What affects the choice of flat roof covering?
Roof size, shape, access, detailing and intended use all matter. The right covering is not chosen in isolation from the deck, insulation or drainage. We look at the roof as a system, because the covering only performs well when the layers beneath it also make sense.