Einfamilienhaus mit Satteldach, Dach und Fassade sind mit PREFALZ von PREFA in P.10 Anthrazit eingedeckt. Die Scharen der Dachfläche ziehen sich auch weiter über die Fassade. Ein Teil der Fassade ist mit verwitterndem Holz verkleidet.

Roof system Prefalz®

Versatile and flexible: Prefalz® offers planners plenty of scope for creativity and is easy to work with.

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Thanks to it’s properties Prefalz is more pliable than most comparable hard metals. Architects can use it in many creative ways as roof and wall applications. PREFA recommends a minimum roof pitch of >7° but in accordance with national guidelines a roof pitch of >3° is feasible (see PREFA Installation Instructions).

Prefalz Falzdach in P.10 Zinkgrau mit Dachflächenfenstern


  • Comprehensive PREFA system accessories
  • Versatile use – from arched roofs to complex roof extensions, domes or large-scale roofs
  • Colour chart with 19 standard colours
  • Available with smooth or stucco surface
  • Low weight sheet strip: 1.89 kg/m²: approx. 2.3 kg/m² roof surface with Prefalz® 500, approx. 2.2 kg/m² roof surface with Prefalz® 650
  • Long service life – non-corrosive!
  • Fully recyclable
  • Also available with protective film on request (smooth surface only)
  • Easy to work with even in low outdoor temperatures
  • Easy to work with, strong load-bearing capacity
  • Alloy, mechanical properties and coating are coordinated with the folding technology
  • No heavy metal erosion
  • Prefalz® is non-combustible (A1)

Colour overview (19)

The product is available in the following colours




01 Braun

P.10 brown


02 Anthrazit

P.10 anthracite


03 Schwarz

P.10 black


04 Ziegelrot

P.10 brick red


05 Oxydrot

P.10 oxide red


06 Moosgrün

P.10 moss green


07 Hellgrau

P.10 light grey


08 Zinkgrau

P.10 zinc grey


10 Prefaweiß

P.10 prefa white


11 Nussbraun

P.10 nut brown


17 Reinweiß

P.10 pure white


PREFA dunkelgrau ähnlich DB 703 oder RAL 7043

P.10 dark grey


43 Steingrau

P.10 stone grey


12 Silbermetallic

metallic silver


13 naturblank

plain aluminium

23 Schwarzgrau

black grey


45 Bronze



46 Patina grün

P.10 patina green


47 Patina grau

patina grey



  • The RAL values stated are merely approximate values (~), some of which may differ vastly from the original PREFA colour and, under certain circumstances, may not reflect the subjective perception of the colour. 
  • Above all for colour quality P.10, it is almost impossible to define values due to the surface structure.
  • Plain aluminium: The guarantee does not cover surface appearance alterations caused by processing and environmental influences. Follow the instructions.
  • Metallic colours may vary in shade.
  • To identify exact colours for complementary components please consult original samples.

Technical information

Prefalz® coils are perfect for use in standing seam roofing and cladding. Prefalz®  strips are also ideal for use as flashing strips on PREFA small format components – suitable for various connections and flashings with dimensions of 0.70 × 1,000 mm (60 kg rolls).

  • Available in 19 colours

Tip: Strong winds blowing against mono-pitched roofs with double-lock standing seams can get noisy. To tackle this problem, we recommend using Prefalz® with a strip width of 500 mm. Sufficient sound insulation measures should already be taken into account when planning the roof structure.

Caution: Combining Prefalz® strips with other colour aluminium strips should be avoided at all costs due to the different paint qualities and folding abilities.


coil-coated aluminium, 0.7 mm thick

Standard dimensions

PREFALZ for roofs: 0.7×500 mm; 0.7×650 mm
complementary coil: 0.7×1,000 mm


approx. 1.89 kg/m²
actual consumption with PREFALZ 500: approx. 2.3 kg/m²
actual consumption with PREFALZ 650: approx. 2.2 kg/m²

Minimum roof pitch*

3° (approx. 5%)

* Observe country-specific standards and specialist guidelines.

Supporting substrate and separation layer*

on fully boarded substrate (at least 24 mm); separation layer as required

* Observe country-specific standards and specialist guidelines.


PREFA preformed fixed and long sliding clips (stainless steel) according to static requirements

Tips for installation

Roof pitch

position of fixed point area*

> 3°–5° (> 5 %–9 %)

in the tray centre

> 5°–10° (> 9 %–18 %)

in the top third of the tray

> 10°–30° (> 18 %–58 %)

in the top quarter of the tray

> 30° (> 58 %)

at the top end of the tray

Planning and installation


Niro Winkelstehfalzhaft von PREFA

Stainless steel preformed fixed clip


Niro Winkelschiebehaft von PREFA

Stainless steel preformed sliding clip

for tray lengths of up to 12 m

Stainless steel preformed long sliding clip

tray lengths 12 – 15 m

Stainless steel fish tailed fixed clip


Stainless steel fish tailed sliding clip

tray lengths up to 12 m

Sealing gel

in a cartridge or in a foil pouch

Single pipe seam clamp

for pipe openings with a diameter of 28 mm

Double pipe seam clamp

for pipe openings with a diameter of 28 mm

Seam clamp with oblong hole

for pipe openings with a diameter of 28 mm

Snow guard pipe

for seam clamps; 28 × 2 × 3.000 mm,

Corner connector 90°

for snow guard pipes ⌀ 28 × 2 mm

Ice stopper

for snow guard pipes 28 × 2 mm

Sunny solar bracket

suitable for all PREFA small format products and standing seam systems.

Vario Prefalz solar bracket

Suitable for PREFA double-lock standing seams with a seam height of 25 mm. Only suitable for working with PREFA profile rails. Not compatible with other products.

Walkway support for standing seam roofs

roof pitch: 5°-55°

Walkway support for standing seam roofs

250 × 1.200 mm, 250 × 800 mm, 250 × 600 mm, tested according to DIN EN 516-1-A

Walkway connector


Roof anchor hook according to EN 517 – B SDH Industry 31

tested for securing 2 persons

Frog-mouth vent cover

for riveting, air intake section approx. 30 cm²

Vent pipe

Ø 100 mm, Ø 120 mm including EPDM seal and cover

Bonded vent pipe cover for standing seam roofs

roof pitch: 3°-52°

Roof hatch cover and wooden frame

roof pitch from 12°

Roof window flashing for Prefalz

available in many dimensions

Special adhesive kit

Content: 1 cartridge of PREFA special adhesive 290 ml, 1 can of adhesive cleaner 60 ml, 1 piece of sandpaper, 1 cloth, 2 adapter nozzles