They are items your customers will almost certainly never see or ask about, but glazing blocks are as important as any other component part of your windows and doors.
Roto Glas-Tec blocks are premium products that help your windows and doors maintain optimum performance over a lifetime. By using them you can avoid many problems that can occur on glazed openings.
Here are some of the key advantages of glazing correctly with the highest quality blocks:
Keep the sash square
If glazing is held in place by correctly spaced blocks, it keeps the window or door sash rigid. Roto Glas-Tec blocks are resistant to deformation, ensuring the sash retains its squarenes over time. This helps avoid issues like sash drop and the locking points becoming misaligned and harder to operate.
Avoid glazing damage
Incorrect spacer installation can cause issues with glazing such as cracks in the glass, condensation in the glazing, air leakage and delamination.
Reduce strain on hinges
By using the best blocks and positioning them correctly, you distribute the weight of the glass evenly. This can help reduce strain on load-bearing components like hinges and extend their lifespan.
Airflow
Well-specified and correctly-placed glazing blocks allow airflow and water drainage within the sash, preventing moisture buildup. This reduces the chances of condensation and corrosion to items such as spacer bars.
Thermal efficiency
When glazing blocks are used correctly, they prevent cold bridging by ensuring a consistent gap between the glass and frame, maximising thermal insulation.
Properties of premium glazing blocks
The Roto Glas-Tec range is a comprehensive selection of dozens of glazing block designs, each for a specific purpose. Your Roto representative in consultation with our engineers can specify the ideal glazing blocks for your window and door designs and the tools to help fit them.
Here are some key attributes of Roto Glas-Tec components:
Material quality
Roto Glas-Tec blocks are exclusively made from 100% virgin material. This ensures superior strength and durability compared to packers made from recycled plastics.
Sustainability through longevity
By extending the life of the window, the use of Roto blocks helps reduce the overall use of materials and is therefore more sustainable in the longer term.
Chemical resistance
Each Roto Glas-Tec block design undergoes rigorous testing and is exposed to dozens of commercially available edge sealing compounds to ensure resistance to chemical degradation.
Extreme stress tested
Roto glazing blocks meet the German glazing industry’s exacting guidelines. They withstand extreme conditions, including very cold and high temperatures, and forces under pressure equivalent to hundreds of kilograms.
Types of Glazing Blocks
Each type of block in the Roto Glas-Tec range has a specific purpose. The core products are as follows:
● Support Packers: distribute the glazing weight evenly to prevent sagging.
● Spacer Packers: maintain the gap between the glass edge and the sash.
● Contact Point Packers: reinforce around hinges and locks, reducing flex in critical spots.
● Bridge Spacers: work as support or spacer packers while allowing airflow for better ventilation.
● Compensating Blocks: provide a stable base for mounting packers on specific profile shapes.
In summary
Glazing blocks are far more than minor accessories. They are hidden guarantors of performance, security, and efficiency. When you choose the Roto Glas-Tec range, you are investing in the quality and longevity of your windows and doors.
Contact your Roto representative for a full demonstration of Roto Glas-Tec accessories.
See more on the Roto Glas-Tec range here:
EN – https://ftt.roto-frank.com/int-en/products/details/roto-glas-tec/
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