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RoofPruf

Klepar · Lattoniere · Spengler

Gutters, flashings and sheet-metal roofing

Sheet-metal roofing work covers everything that handles water where a covering cannot: valleys, chimney and wall abutments, dormers, penetrations, snow retention, and the whole rainwater path from eaves to drain. It is a separate craft, and it is where most roof leaks actually begin. Tiles shed water. Sheet metal handles it everywhere tiles cannot: valleys, chimneys, walls, dormers, penetrations and the entire journey from eaves to drain. It is a separate craft with its own apprenticeship in all three of our markets, and it is chronically underpriced by contractors who treat it as an afterthought of the tiling. Most of the leaks we are called to were never a covering failure.

Gutters & sheet metal — RoofPruf

What's included

Published benchmark

Per metre, or as part of a reroof

Sheet-metal work is included in every RoofPruf replacement package. As standalone work it is priced per linear metre by material and profile, quoted from the survey.

  • Gutters, downpipes, hoppers and outlets in zinc, aluminium, copper or coated steel
  • Valley linings formed and lapped correctly for the pitch and catchment
  • Chimney, abutment and dormer flashings — stepped, soakered and properly dressed
  • Verge, eaves, ridge and hip detailing in matching system components
  • Penetration flashings for flues, vents, rooflights and solar entries
  • Snow guards and snow retention sized for the local snow load
  • Lightning protection interface where one is present
  • Standing-seam and profiled sheet-metal roof coverings
  • Leaf guards and access-safe cleaning provision

Sizing, not habit

Gutter and downpipe sizing follows the catchment area and the design rainfall intensity for the location, not the size that was there before. Undersized rainwater goods overflow at exactly the moment they are needed and soak the wall head below them for years before anyone connects the two.

Snow retention is a safety system

In alpine and pre-alpine locations, a sheet of snow releasing off a smooth covering onto an entrance, a car or a person is a foreseeable event. Snow guards are sized from the local snow load and the covering friction, positioned by calculation, and fixed into the structure rather than into the batten. System suppliers publish this data; we use it.

Material choice is a lifespan decision

Titanium zinc, aluminium, copper and coated steel differ in service life, in cost, in how they weather and in what they may be paired with. Copper runoff onto an aluminium element will destroy it. We specify the whole rainwater system as one compatible set rather than matching whatever is cheapest per metre.

Still have a question?

Discuss your roof with us — no sales script, no obligation.

See all questions

Which gutter material should I choose?

Titanium zinc, aluminium, copper and coated steel differ in service life, cost and how they weather. The important rule is compatibility: copper runoff onto aluminium will destroy it, so the rainwater system has to be specified as one compatible set rather than assembled from whatever is cheapest per metre. Sizing matters as much as material — gutters and downpipes should be sized from the catchment area and the design rainfall for your location, not copied from what was there before.

Do I need snow guards?

If you are in an alpine or pre-alpine location and snow can release onto an entrance, a path, a car or a neighbour, then yes — treat it as a safety system rather than an accessory. They are sized from the local snow load and the friction of the covering, positioned by calculation, and fixed into the structure rather than into the batten. Smooth coverings such as metal and glazed tile shed snow far more readily than textured ones, so the covering choice changes the answer.

Start with the survey. Decide after you have read it.

A fixed-fee survey, a written condition report with annotated photographs, a realistic remaining service life and a costed action list. Credited in full against your project if you go ahead — and still useful if you do not.

Water coming in right now? Mark the enquiry urgent or write to hello@roofpruf.com, and stay off the roof — do what is safe from inside while we read it.