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overtec GmbH – Zentrale

Salzburger Straße 101‭, 4800 Attnang-Puchheim

overtec Schacht

is a prefabricated element that covers installations and pipe penetrations.

overtec_logo-weiss

Overtec Schacht

is a prefabricated element that covers installations and pipe penetrations.

 

The overtec shaft has been developed for installations such as exhaust and supply air as well as chimney pipes. Depending on this, the design meets EI90 or A2.

medal

First product from overtec

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EI90 tested

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EPD certified

Screwed to the concrete ceiling

After concreting, the shaft is placed on the hardened concrete and screwed together. A screw connection to a wooden ceiling is also possible. The accessories are already included in the scope of the offer and in the delivery.

Concreted into the ceiling

The adhesion is created by setting it in concrete using a dowelling mandrel. This shaft head is positioned directly on the element ceiling board or the ceiling formwork. The standard fastenings consisting of 4 dowelling mandrels are arranged at the factory and concreted with at least 10 cm of additional concrete. The standard fastening is already included in the offer.

Concrete into the ceiling as a frame variant

This shaft is installed using a frame. This model can be used for different reasons. For example, if the advanced construction situation requires it, if there is no space for a shaft wall between the formwork and the reinforcement or if, for cost reasons, mechanical anchoring is out of the question if, for example: excessive height. The standard fastening is already included in the offer.
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Documents in different file formats
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Sehen Sie hier ein aufschlussreiches Projektbeispiel

EN 13986:2004+A1:2015

Our material

Brandbeständiges overtec Material

Fire resistant

Schneefestes overtec Material

Frost resistant

Regen und Witterungsbeständiges overtec Material

Weather resistant

Kein Pilzbefall von overtecmaterial

Mold resistant

Kein Insektenbefall von overtec Material

No insect infestation

No wood and no concrete. Wood concrete.

A chaotically sorted wood fiber mixture which is pressed and dried at 300 bar.

 

The mixture consists of fine wood particles, cement, water and hydration additives. While the wood particles serve as reinforcement and provide properties such as easy workability and high elasticity, the cement content ensures weather resistance and high compressive strength. The basic technical properties are anchored in EN 13986:2004+A1:2015, while the values ​​actually achieved are usually significantly higher.

Ingredients:

Wood
0%
cement
0%
Water
0%
Hydration supplements
0%

Safety data sheets, performance declarations,
Fire safety tests are available upon request.

We proudly present:

A special material needs a special screw.

OneBit Logo der overtec Schraube

Our OneBit screw collection is designed to take the security of our system to the next level. All relevant technical data for structural engineers and engineering offices are documented in the ETA22-0221 registered by overtec. This makes overtec the only approved parapet and parapet system made of wood fiber panels.

See our Youtube
video about it
OneBit screw collection

Foto der overtec OneBit Schraube
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That's why you should rely on overtec

There is often high time and performance pressure on the construction site. Poor quality, long assembly times, complicated handling, problems with water in the structure or with thermal bridges are other factors that can endanger the project.

This makes it all the more important to have a reliable manufacturer and partner at your side.

We support you from planning to installation – and we are also happy to provide you with advice and support afterwards.

Benefit from our decades of experience as a system provider in the construction industry. Since our company was founded in 1978, innovation and customer satisfaction have been our top priority.

In search of the best but also most sensible solutions, we developed the prefabricated concrete shaft made to measure more than 20 years ago. We have avoided using materials such as plastic or stainless steel because our Overtec panels have better material properties in terms of longevity. The shafts have been constantly developed and improved since then. Today they are available in different versions, but they are always tailored to your personal requirements.

Everything from a single source: We not only supply you with the right prefabricated shaft reliably and quickly, but we also take care of your parapets and parapets if necessary. All of our products are characterized by their easy assembly and robustness – minimal handling with maximum service life.

fertigteilschacht

Solutions from overtec: These are your advantages

If you rely on prefabricated shafts from Overtec, you can expect a whole range of advantages.

Fast, uncomplicated and reliable: with the prefabricated shaft from Overtec you not only save a lot of time, but also costs.

Screwed on, set in concrete or as a two-part mixed form: Choose the right solutions for your projects from a wide range of design variants. The shaft can also replace the ceiling breakthrough formwork.

Each prefabricated shaft is produced individually for you. The dimensionally accurate prefabricated parts are then connected to the building to form a secure unit. Thanks to the always appropriate number of anchor points, our shafts can meet even the highest static requirements.

The anchor points can also be installed in advance. This guarantees a perfect seal because it prevents penetration into the roof.

The prefabricated shaft is delivered to the construction site within a very short time and is completely ready for use. It just needs to be assembled. The outlets for pipes can be individually prefabricated on site or by us upon request.

All certificates and tests are of course adapted to the country-specific requirements and specifications.

THESE ARE OUR PRODUCTS FOR YOU

Our prefabricated shafts at a glance

FS – the prefabricated shaft made to measure

… for the fire-resistant design of building technology and installation shafts, as well as chimney casings on flat and pitched roofs.

schacht-fs

You can choose from different versions. Each prefabricated shaft is then made to measure for you in our factory.

The scope of delivery includes all the necessary mounting brackets as well as a cover plate made of high-density, cement-bonded wood-based panels with a material thickness of 24 mm, which are mounted on the vertical plate using screws and angles.

If requested, we can produce the top of the shaft head in advance with a 0 degree gradient, a 7 degree gradient or a 10 degree gradient.

The shaft head cover is supplied loose.

FS_1

overtec Schacht einbetoniert

The prefabricated shaft from Overtec for dowelling in ceiling concrete. Properties and details: Adhesive connection by setting in concrete using a dowelling mandrel. This shaft head is positioned directly on the element ceiling board or the ceiling formwork. The standard fastenings consisting of 4 doweling mandrels are arranged at the factory and concreted with at least 10 cm of additional concrete (standard statics). The standard fastening is already included in the offer.

FS_2

overtec Schacht einbetoniert mit Zarge

The prefabricated shaft from Overtec for dowelling in the ceiling concrete as a frame variant. Properties and details: This shaft is installed using a frame. This model can be used for different reasons. For example, if the advanced construction situation requires it, if there is no space for a shaft wall between the formwork and the reinforcement, or if mechanical anchoring is not an option for cost reasons. The standard fastening is already included in the offer.

FS_3

overtec Schacht aufgeschraubt

The precast shaft from Overtec for screwing into ceiling concrete. These prefabricated shafts are also available in the FS-SZ version for screwing into ceiling concrete with an anchor point. The pressure plate of the tie rod is attached to the ceiling concrete using chemical or mechanical dowels. The angle is mounted on the shaft base using wood screws measuring 6 x 40 mm. For elements without anchor points, fastening with brackets measuring approximately 90 x 90 x 65 x 2.5 mm is usually sufficient. The standard fastening is not included in the offer.