A new roof on a steel frame, a new covering or repairs to the waterproofing. Scroll to see what a roof is made of, from the rafters to the gutter.
The rafters carry everything above them. Here they are cold-formed galvanised profiles, but they can also be timber. Their spacing and section come from the design: more snow means closer or deeper rafters.
A breather membrane over the rafters. It keeps water out from above but lets vapour out from below, so that no moisture collects under the covering. The strips overlap from the bottom up, like tiles.
Battens along the rafters, on top of the membrane. They lift the covering off it and leave an air gap through which moisture escapes towards the ridge.
Battens across the slope. The covering is fixed to them, so their spacing depends on it.
The top layer, the one you see. Change it at the top right: the structure and the waterproofing under it stay the same.
The drip edge carries water from the edge of the covering into the gutter. The gutter collects water from the slope, and the downpipes take it to the ground, away from the foundations.
From outside you only see the covering, the drip edge and the gutter. Change the covering at the top right and see the difference.
To the calculatorStructure, waterproofing, battens, covering and drainage, for a new building or an extension.
The old covering comes off, the rafters and battens are checked, then the new one goes on.
A membrane under the covering, or repairs to existing waterproofing where it leaks.
Gutters, downpipes and flashings on ridges, eaves and chimneys.
Enter the building dimensions and the pitch. The calculator gives the roof area and rough quantities. The price depends on more than the area, so it comes after the site visit.
The quantities are approximate. Overlaps and waste are added to the sheets; the exact figures come from the site visit. The calculation is approximate and is not a quote.
We look at the roof from above and below, measure and take photos. For repairs, we find where the water gets in.
We write down what the job includes and which covering we suggest. The price is in writing.
For re-roofing, the old covering is removed and taken away, and the structure is checked.
Membrane, battens, covering, in that order. Each layer is checked before it is covered.
Ridge, eaves, chimneys, gutters and downpipes. Water has to leave the roof and end up well away from the foundations.
We walk the roof together and clean up after ourselves.
Tile-effect sheet has a profile like roof tiles and goes on houses. Trapezoidal sheet has straight ribs and is for halls, canopies and farm buildings, including low pitches.
Sometimes, but more often not. We decide after the site visit, once we see the state of the rafters and battens.
Metal coverings weigh about 5 kg per m², clay tiles about 40. The difference affects the structure underneath.
If the leak is in one place and the base is sound, repair. If the covering is old all over, the quote compares both options.
We come to the site, anywhere in Bulgaria. The price and the timeline follow the visit, in writing.
or call 0884 420 445
Process
Configurator
Anatomy
