Is your current roof looking a bit worse for wear? Or does your new build need a stylish topper? Look no further than Green & Flat Roofing, the South’s first choice for stunning flat roof installations.
Our experienced roofers have installed flat roofs across Dorset, Wiltshire, Hampshire, and beyond. We've tackled all types of projects, from small homes to large-scale commercial buildings, giving us the expertise to design a roof that turns your exact vision into reality.
Ready to get started? Get a free quote online or call us on 023 8251 2832 to discuss your dream roof today!
Hot roofs have insulation installed above the roof deck, typically right under the roof sheathing. This creates a continuous thermal barrier that minimises heat loss in winter and heat gain in summer. A vapour barrier is also installed directly beneath the insulation to stop moisture from reaching the roof deck.
Hot roofs cost more upfront than their cold roof counterparts because of the extra materials and labour, but they offer much better insulation and are far less likely to have condensation problems since the roof deck stays warmer. This is why most roofing experts recommend this system over cold roofs.
Inverted roofs are essentially "flipped" versions of warm roofs. In this design, the insulation is placed above the waterproofing membrane, shielded from the weather, temperature changes, and UV rays by a layer of gravel or paving stones (ballast).
These roofs are ideal for areas with foot traffic, such as balconies or green roofs. However, they do require a sturdy structure to support the weight of the insulation and ballast.
In a cold roof system, the insulation is placed between the rafters (ceiling joists), creating a ventilated air gap between the insulation and the underside of the roof deck.
Cold roofs have a thinner profile because of the limited space between rafters and are generally less expensive to install. However, they’re vulnerable to condensation in the roof cavity, as it's challenging to form and maintain an effective air and vapour control layer (AVCL) below the insulation and provide adequate cross ventilation above the insulation. They’re not recommended in most properties for this reason, with some exceptions - for example, if there are height restrictions.
Having a new roof installed shouldn’t break the bank, which is why our flat roof installation services come at some of the most competitive rates in the South!
Our services cover Hampshire, Surrey, Dorset, West Sussex, and the surrounding counties. Get a free quote online or call us on 023 8251 2832 today!
The primary difference between these roof types lies in the placement of the insulation layer:
All three systems have their advantages, and the best choice for your property depends on factors such as climate, building type, and budget. Our experts can advise on the most suitable option for your needs during your consultation.
In most cases, you won't require planning permission for a flat roof replacement. However, if you're making significant changes to the roof's dimensions or appearance, or if your property is listed, planning permission might be necessary. We can advise you on this matter and handle any paperwork if needed.