Projects & inspiration overview
References
Project configurator
Photo montage
Construction tips
Bungalow on Isle of Wight from birds eye view to the sea, roofed with PREFA PREFALZ in P.10 dark grey.
Products overview
Roof systems
Einfamilienhaus in Newel-Besslich mit PREFA Dachplatte R.16 und PREFA Dachentwässerungssystem in anthrazit
Façade systems
Close-up of the Siding.X façade panels in P.10 black from PREFA on Casa Hoffe in Sappada, Italy. The aluminium façade system has been skilfully installed in a modern, abstract design that forms an attractive contrast to the visible wooden elements of the roof structure. The innovative façade solution blends seamlessly into the alpine ambience and represents the combination of functionality, durability and aesthetic building culture.
Roof drainage
Detached house in Newel-Besslich with PREFA R.16 roof tiles and PREFA roof drainage system in anthracite
Solar panel systems
Detailed view of the installation of Prefalz solar panels on a roof in Meschede
Flood protection solutions
Close-up of the PREFA flood protection made of aluminium, which always withstands flood disasters and protects the detached house in the background.
Coils and metal sheets
Aluminum coils stored on wooden pallets, with a plain aluminum coil in the foreground and further aluminum coils and sheets behind it.
Resources overview
Project configurator
Photo montage
Order brochures
Request a guarantee certificate
Trade fairs
Questions and answers
Your PREFA contact
For installers
For architects
Benefits overview
Building material aluminium
Special topics
Close-up of the PREFA rhomboid roof tile with water drops on the surface. The surface of the roof panel is stucco and the colour is anthracite.
Company overview
About us
Job offers
News
Press
Image of the PREFA factory in Marktl from one of the surrounding hills, with a tree in a green meadow in the foreground and the large forests of Lilienfeld in the background
Contact overview
Your PREFA contact
Contact form
Order brochures
PREFA employees in red T-shirts in front of the PREFA headquarters in Marktl with cheering arms.

Projects & inspiration Products Resources Benefits Company Contact

Projects & inspiration overview References Project configurator Photo montage Construction tips

Products overview Roof systems Façade systems Roof drainage Solar panel systems Flood protection solutions Coils and metal sheets

Resources overview Project configurator Photo montage Order brochures Request a guarantee certificate Trade fairs Questions and answers Your PREFA contact For installers For architects

Benefits overview Building material aluminium Special topics

Company overview About us Job offers News Press

Contact overview Your PREFA contact Contact form Order brochures

References overview Case studies Architecture Highlights Renovation Gallery

Construction tips overview Roof renovation Facade design Wood & Aluminium Façades Coverings for every roof shape Lightweight metal roof

For installers overview My PREFA Login Academy Advertising Material, logos & product samples Instruction and demonstration videos

For architects overview Experience PREFARENZEN Order our architectural brochure and architect folder Download centre BIM

Building material aluminium overview 40-Year guarantee Sustainability Complete System Storm-proof

Special topics overview Fire protection Listed buildings

About us overview Facts and figures Our values and goals Sustainability

Order brochures My PREFA

Installation guidelines
Installation guidelines
Please select one or more chapters to download.
Table of contents
Façade Siding, Siding.X & Perforated Siding Processing and installation Fasteners

Fasteners

Special screw for aluminium sub-structure framework

Special screw for steel sub-structure framework

Fastening to aluminium support profiles (L- or T-profiles)
Special screw JT3-LT-2H-Plus-5.5 × 25
Head diameter: 12 mm (T25)
Material: A2 stainless steel
Requirement: 6–9 pcs./m²

Fastening to steel profile sheets 0.4–1.0 mm
Special screw JF3-LT-2H-5.5 × 25
Head diameter: 12 mm (T25)
Material: A2 stainless steel with hardened steel point
Requirement: 6–9 pcs./m²

Special screw for timber sub-structure framework

Fastening on timber sub-structure
Special screw JT4-FR-2‑4.9 × 35
Head diameter: 12 mm (T25)
Material: A2 stainless steel
Requirement: 6–9 pcs./m²
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