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Roof support systems - Product range overview

Roof plant support systems

Comprehensive solutions and universal product selection are highly desired properties for both the contractors and trading companies. Rooftop support system – ST-ROOF system - is designed to cut down on roofing installation costs and provide easy and quick assembly solutions.

Rooftop Support - Product Range 

On the market, there are available different variations of rooftop system to choose from, e.g. in our offer we have the comprehensive product range of support foot, STRUT channel, anti-vibration mats - for clients to create their own sets according to their requirements or modular framework sets boxed for convenience.

ST-ROF-330 and ST-ROF-AW-330 flat roof supports

ST-ROF-330 and ST-ROF-AW-330 square roof support feet

The ST-ROF and ST-ROF-AW roof feet are made of glass fibre-reinforced polypropylene (PP) with 300mm x 300mm square base with a central fixture compatible with a 41x41 STRUT channel.  For flat 0o roofs, the entire foot rests on the roof’s surface, thus ensuring very stable support. For sloped roofs, up to 10o, it is possible to screw in stems to adjust the slope of the foot. Maximum load for each foot is 2 200 N.  
ST-ROF-AWL flat roof support foot

ST-ROF-AWL roof support feet

Vibration dampening on-roof feet ST-ROF-AWL are available in 250, 450, 600 and 1000 mm. They are made of processed rubber, highly resistant to UV radiation with height 90 mm and base width 160 mm. Each foot is fitted with 1 to 4 vertical holes with a sleeve joint to support the installation frame.
ST-ROF-AWL flat roof support foot

ST-ROF-AWL-STR roof support feet with rail

Check complete product range of Roof Feet

ST-ROF-AWL and ST-ROF-AWL-STR are recommended for loads of up to 130 kg per one foot. At such loads, vibration dampening is at up to 92,2%.
Anti-vibration mat for HVAC equipment

ST-ROF-MAT Vibration-damping mat and ST-ROF-AF absorbing rubber-based adjustable feet

Vibration-damping mats for roof supports and feet ST-ROF-AWL are an ancillary component of ST-ROOF system. These anti-vibration mats/pads are placed directly on the roof under roof feet or support to insulate vibrations and noise generated by roof-installed equipment. They also protect the roof membrane from mechanical damage.

Vibration-dampening mats are made of styrene-butadiene rubber (SBR), and are available in two thicknesses: 10mm or 20mm; size: 330x330mm, 500 x 500 mm or 1000 x 1000 mm. ST-ROF-MAT anti-vibration mats can be easily cut into any shape to match the actual roof slope or the installation. 

Check Antivibrations pads and other accessories

Roof support systems - Custom & Bespoke Solutions

ST-ROF-SET Roof support kit consists of perfectly matched elements - roof feet, sections of strut channel, screws, nuts, etc. There are available 4 basic versions of roof support frameworks – 4, 6, 8 and H-frame roof sets – depending on equipment’s size and weight.

The set of roof supports consists of perfectly matched components – roof foot, mounting channels sections, screws, nuts, etc., thus installation is fast and simple. Modular frameworks can be used on a flat and a slightly pitched roof. The selected roof support modular framework is boxed for convenience. The carton box size is 400x400x1200.

ST-ROF-SET roof support kit for HVAC equipment

ST-ROF-SET Roof support modular frames


ST-ROF system - Benefits

  • Exceptional load distribution of M&E services, HVAC units on roofs;
  • Versatile support for heavy-duty mechanical services
  • Compatible with STRUT channel support system 
  • Bespoke configurations 
  • Non-penetrative solution; roof structure remains intact after installation;
  • Easy access to roof surface without having to remove the installed items
  • Highly aesthetic and durable workmanship for each installation.

Duct supports

Telescopic rooftop foot

Recently, we've added to our offer new product to our range of duct supports. Namely, telescopic rooftop foot (ST-ROF-TELES). It's specifically designed to support outdoor ventilation ducts - circular ones (suspension rings should be ordered separately). There are two sizes available: 300x300 and 150x100 mm. 

Telescopic rooftop duct supports are adjustable between 270-455mm. The adjustable height of duct support makes it easy to install the ventilation duct, even on uneven surfaces and around obstacles.

Looking for the best way to support round ducting on a roof?  

Duct support

Duct Supports

Another product dedicated for installation spiral ducting on the rooftop is FAA duct support. It's fixed to the roof surface using screws threaded into two holes in the lower part.

Why use it? For safety and convenience. The ventilation ducts are kept above the water draining from the roof's surface, and in winter, one can easily remove snow from above.

There 3 versions of this product - check technical sheet



Roof support systems - Applications

  • ventilation and air handling units,
  • chillers,
  • heat pumps and solar panels,
  • platforms and bridges
  • air-conditioners and refrigerating units,
  • ventilation and air conditioning ducts or piping,
  • solar panels

Looking for the perfect roof support system? Need help or advice on selecting the best solution for You? Get in touch! Email us export[at]  

Alnor Knowledge Base
ST-ROF system – roof feet and supports of highest quality
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