Roofers that specialist in flat roofing
Flat Roofing is generally as it implies, horizontal or almost insofar that the materials and structure by way of an imperceptible slope, enabling rainwater to run off.
It goes without saying that the most common sort of material used to cover the building is tar and gravel whereby so long as there are no pools of water, this is adequate to prevent penetration. Having said that, however, these services tend to deteriorate in colder climates if ice dams block the water flow.
The most common contemporary material used is a continuous membrane and generally better in resisting the propensity to pools of water on its surface. The membrane is generally applied in a continuous sheet, where it is feasible although it is possible to use sealants and adhesives to bond multiple sheets. Another type of material used is copper or tin but that can be extremely expensive. With modern architecture, the flat roof has been regarded as an extra living space such as Villa Savoye and the Unite d'Habitation in France although this started leaking not long after the family moved in, the architect, Le Corbusier was almost sued but saved when Germany entered France in WWII.
One of the major drawbacks of flat roofing is that it is sensitive to damage by human traffic, which means the slightest puncture will cause leaks, exacerbated by subsequent work on the roof so it is inadvisable to create a living space on a flat roof unless measures unless measures taken to protect the roofing membrane from those who use the roof, such as installing a wooden deck or paving slabs. The most 'green' methods to protect roof membranes, is a layer of topsoil and grasses. Care must be taken that roots do not penetrate the membrane surface.