With the (square) box gutter and the round PREFA downpipe or the equally square PREFA square downpipe (see image), rainwater is safely drained from your (PREFA) roof.
Advantages of PREFA’s box gutter
Malleable coating layer
Due to the coating of the aluminum coils in the coil coating process, the coating layer remains malleable and does not peel off - no annoying repainting and touching up.
Free of harmful heavy metal ions
Aluminum gutters do not release harmful substances.
Durable
Non-corrosive – because aluminium does not rust
Malleable coating layer
Due to the coating of the aluminum coils in the coil coating process, the coating layer remains malleable and does not peel off - no annoying repainting and touching up.
Free of harmful heavy metal ions
Aluminum gutters do not release harmful substances.
Durable
Non-corrosive – because aluminium does not rust
40-year guarantee
Temperature-resistant
from -30°C to +80°C
Everything from one source
Complete system with a wide range of accessories – technically and colour-coordinated
40-year guarantee
Temperature-resistant
from -30°C to +80°C
Everything from one source
Complete system with a wide range of accessories – technically and colour-coordinated
Good for the environment
The PREFA aluminium drainage system is the best choice from an ecological point of view too. This is because aluminium does not release harmful heavy metal ions into the sewage water when gutters and pipes are constantly flushed out with rainwater, as is the case with conventional materials.
Colour range of PREFA’s box gutter
PREFA’s box gutter is available in the classic standard colours. The roof drainage system is part of PREFA’s complete aluminium system and is thus a perfect match for PREFA roof and façade systems, both visually and functionally.
Colour overview (13)
Colour |
Code |
~ RAL |
250 |
333 |
400 |
500 |
|
P.10 brown |
7013 |
||||
|
P.10 anthracite |
7016 |
||||
|
P.10 black |
9005 |
||||
|
P.10 light grey |
7005 |
||||
|
P.10 prefa white |
9002 |
||||
|
P.10 nut brown |
8019 |
||||
|
P.10 dark grey |
7043 |
||||
|
brick red |
8004 |
||||
|
moss green |
6005 |
||||
|
zinc grey |
7030 |
||||
|
metallic silver |
9006 |
||||
|
plain aluminium |
|||||
|
patina grey |
7042 |
Notes
- 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. In addition, the PREFA Siding colours P.10 stone grey, P.10 sand brown, P.10 patina green, natural oak, patina grey, walnut and grey oak are based on natural colours made up of several different shades.
- Coils and metal sheets 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.
Be inspired by projects that have already been implemented with PREFA’s box gutter.
Here, we have compiled some reference buildings with PREFA’s box gutter. For more inspiration, see our Reference gallery.
Think about your gutter after a storm or especially in autumn/winter.: Tip from the experts:
In autumn, but also after strong winds, rain or hail, leaves and branches may block the gutter. As a result, water can no longer drain off and may thus overflow. The accumulated water can also freeze in winter and damage the gutter and pipe. In any case, the rain barrel should be emptied and the rainwater collector should be closed and sealed with the corresponding plug in autumn to prevent frost damage.
Do you have any other questions about PREFA’s box gutter?
- Primary aluminium Aluminium is obtained from bauxite, an aluminium ore named after Les Baux – the place where it was discovered. Bauxit usually consists of up to 60% alumina, iron oxide and silica. It is mainly found in South America, Australia and Africa.
- Secondary aluminium Secondary aluminium consists of recycled aluminium and is recovered from scrap metal recycling. During preparation, only 5% of the extraction energy used to produce primary aluminium is used.
Technical information
The coating layer is malleable and resistant to general chemicals and weather conditions. Coil coating production is accompanied by strict quality controls.
Temperature-resistant |
from -30°C to +80°C |
|---|---|
Box gutter dimensions (piece lengths 3 m and 6 m) |
250, 333 |
Aluminum water downpipes (piece length 3 m) |
Ø 60 mm, Ø 80 mm, Ø 100 mm, Ø 120 mm, Ø 150 mm |
Planning & Use
Our metalworkers and architects can download Tender specifications for PREFA’s box gutter here. Installation guidelines and instructions for roof drainage, ÖNORM guidelines, information sheets on roof drainage and a calculation tool for the dimensioning of roof drainage are available to our installation partners in the Service area. (Only for metalworker and roofer partner companies: Please have your access data ready. You don't have access data yet? Then contact your local Area Sales Manager.)
Accessories
With a gutter system from PREFA, you are opting for a well-thought-out complete system with 100% original accessories. The PREFA roof and façade system comes with a colour-coordinated range of accessories – from gutter brackets to gutter outlets.
For a complete, detailed list of accessory products, see our price list (only for processors).
Box gutter bracket
250, 333, 400, 500
Fascia bracket for box gutter
250, 333
Box gutter end cap
250, 333, 400
Box gutter end cap 500
left/right
Box gutter corner 90° (external)
250, 333, 400, 500
box gutter corner 90° (internal)
250, 333, 400, 500
Box gutter outlet
250 × Ø 80, 333 × Ø 100, 400 × Ø 120, 500 × Ø 120, 500 × Ø 150
Square downpipe outlet
□ 80/250, □ 80/333, □ 100/333, □ 100/400
Box gutter expansion joint with bead and cover plate
280, 333, 400
Box gutter expansion joint without bead or cover plate
250, 333, 400
Eaves drip edge
230 × 2.000 × 0,70 mm
