FAQ

1. How can I order Belned products?

You can order Belned products in a number of ways.

No matter what method you prefer, we will ensure that your order will be quickly and accurately processed. Delivery times can be agreed in consultation. Belned delivers its products according to a fixed route schedule.

2. Why is ventilation so important?

Allowing sufficient ventilation is an important aspect of every glazing project. Ventilation grilles are usually fitted with or instead of panes of glass in window frame profiles and can be ordered from glazing materials suppliers. The type of grille rooster you should install depends on the selected ventilation system and the impact of ambient noise.

A large amount of attention has been paid to the air tightness of wall constructions in recent years. However, increasing the air tightness has led to problems with moisture and mould in private homes, simply because human activities produce humid and contaminated air.

MAXIMUM AIR TIGHTNESS IS THEREFORE NOT GOOD FROM A HYGIENE AND COMFORT PERSPECTIVE UNLESS A VENTILATION SYSTEM HAS BEEN INSTALLED THAT CONTINUES TO OPERATE UNDER ALL WEATHER AND BUILDING USAGE CONDITIONS.

Ventilation can take place naturally (through wall openings, such as vent lights or ventilation grilles in vertical air ducts) or mechanically (air-moving fans, extraction units). These days, a combination of both methods is most commonly used.

The main advantages ventilation grilles have over open windows are of course the reduction of energy loss, the decrease of noise nuisance and the restriction of pests; they also obviously do more to prevent burglary.

3. Is secundary glazing only used for noise and/or temperature insulation?

No, secundary glazing is also supplied with toughened or safety glass to protect stained-glass windows.

4. How do I prevent condensation from forming on secundary glazing?

Condensation can be prevented by allowing the space between panes of glass to ventilate with the outside air. Assuming that the secundary glazing is mounted on the outside, you could do this by inserting a gap in the rubber sealing strip on the inside. Do this by cutting away a piece of rubber measuring approximately 1 cm. This creates sufficient space for ventilation.

With secundary glazing mounted on the inside, it is especially important that the window seals on the outside work properly. When fitting secundary glazing, we often come across old putty that allows moisture to get into the gap between the panes of glass. The moisture cannot escape through the interior-mounted secundary glazing and forms into condensation.

5. What type of paint is suitable for Belned glazing bead?

Belned glazing bead is coated with Sikkens WF 360 in RAL colours 1013, 7026 and 7035 or transparent Pehalin Cetol WP 560 RAL colour 161, which can both be painted over with water-based and synthetic lacquers.

6. Does Belned supply custom-made glazing bead, for example, for renovation projects?

Yes, we can mitre-cut, shape, pre-drill, cut ventilation grooves and notches (for nose bead). Our custom-made glazing bead can also be packed according to the type of window and where it has to be fitted on a building – the side elevation, or front or rear façade.