picto-devis
Request a quote
picto-configurateur
Project planners
picto-blog
The VIT BLOG

Frequently Asked Questions

Welcome to the VIT Group’s Frequently Asked Questions !

Here you will find all kinds of questions and answers that will help you to learn more about glazing, but also tips on application according to the type of glazing and information about the VIT company, your orders, your deliveries…
If you do not find the answer here, please contact us directly by clicking here.
A VIT advisor will answer you as soon as possible !

What is laminated glazing used for?
This type of glazing provides extra strength and safety in the event of breakage. Its main purpose is to hold the glass in place when it breaks to prevent the spread of glass fragments and to avoid any risk of injury. It also delays break-ins, and under certain conditions can be used as a guardrail. This is made possible by the glass sheets being held together by films.

How to calculate the weight of glazing?
To calculate the weight of a pane, there is a formula to be applied: 2.5 kg / mm thickness / m².
For laminated glass, the weight of the films must be added, which is 0.42 kg/film/m².
For example, an 8 mm glass will weigh 20 kg/m² (8 x 2.5), while a 44² laminated glass will weigh 20.84 kg/m² (((4+4) x 2.5) + (2 x 0.42)).

How to calculate the thickness of an insulating glass unit?
To obtain the thickness of an insulating glass unit, you need to add the thickness of the glass products to the thickness of the air space (or air spaces in the case of a triple).
For example, 4/16/4 glazing will measure 24 mm.

How do I measure a pane of glass?
To measure a window properly, you need to be able to remove the sealant or the glazing beads from your window to get the exact measurements. All you have to do is measure the height and width of your glass.

Does thermal glazing have to be automatically fitted as double glazing?
Yes, the thermal pane is automatically fitted as double or triple glazing to ensure that it performs its function of providing good thermal insulation and therefore an optimum Ug-value, good luminosity and controlled solar gain.

Is insulating glass made up of several panes of glass for its effectiveness against noise?
VIT acoustic insulating glass is made up of at least two panes of glass of different thicknesses to improve acoustic performance : each thickness of glass reduces a different wavelength of noise. Of course, it is also possible to use a standard laminated glass or an acoustic treated glass (PVB acoustic) to further improve the performance against noise.

Visit our acoustic configurator to find your solution !

What is the role of solar control glazing?
Solar control glazing helps to control the level of heat entering in the summer and the amount of light in the summer, while preventing heat loss in the winter. This glazing is chosen according to the exposure of the building and your project. This glazing allows you to reduce the consumption of air conditioning in your building and improve your living comfort.

Moreover, the RE2020 which came into force on 1 January 2022 emphasises this point ! “The aim of this regulation is to prioritise energy sobriety and decarbonisation of energy, to reduce the carbon impact of building construction while guaranteeing comfort in the event of high heat”

Find our range by clicking here

How is the vacuum created in double glazing?
There is no vacuum between the panes ! There is only a filling of dehydrated air or Argon between the panes. The sealing is then carried out with a butyl and then a PU or silicone, in order to guarantee the glazing for 10 years against the return of humidity in normal conditions of installation and exposure.

Is triple glazing useful?
Triple glazing will provide better thermal insulation : the Ug-value can reach 0.4 W/m²°K, whereas with double glazing it can only reach 1 or even 0.9. It should be noted, however, that the energy input will be reduced in mid-season and that the use of triple glazing must therefore be carefully considered in terms of its overall performance (useful for the coldest NORTH exposure but questionable for other exposures).

What are your fields of application ?
VIT has different fields of application associated with our product ranges in order to best respond to each sector: You can find them on our site :
Fittings, partitions, slabs, showers, facades, windows, railings, doors, verandas, glass roofs, shop windows.

Do you have products dedicated to joiners ?
VIT offers a wide range of glazing adapted to joiners : flame-resistant glazing, burglar-resistant glazing, thermal glazing, blackout glazing, acoustic glazing, etc.
You can find our selection by clicking here

Do you have products dedicated to fitters?
VIT offers a wide range of glazing adapted to the professional fitters : shower glazing, glazing with decorative inserts, glazing with digital printing, acoustic glazing, fireproof glazing, railing glazing, lacquered glazing…
You can find our selection by clicking here.

Do you have products dedicated to facade engineers ?
VIT offers a wide range of glazing products adapted to building and façade engineers : burglar-proof glazing, flame-proof glazing, railing glazing, thermal glazing, blackout glazing, acoustic glazing, solar control, etc.
You can find our selection by clicking here.

Do you have products dedicated to partitioners ?
VIT offers a wide range of glazing adapted to professional partitioners : glazing for shower enclosures, glazing with sandblasting, glazing with decorative inserts, burglar-proof glazing, acoustic glazing, flame-proof glazing, anti-reflective glazing….
You can find our selection by clicking here.

Do you have products dedicated to veranda builders ?
VIT offers a wide range of glazing adapted to building professionals and more specifically to veranda builders : burglar-proof glazing, protective glazing, thermal glazing, insulating glazing, solar control glazing, heating glazing, acoustic glazing, etc.

Do you have any products dedicated to architects ?
VIT offers a wide range of glazing adapted to building professionals and architects : glazing for shower enclosures, glazing with decorative inserts, glazing with sandblasting, glazing with digital printing, heated glazing, acoustic glazing, thermal glazing, solar control glazing, glazing with integrated blinds, thermal glazing, floor glazing, fireproof glazing…
You can find our selection by clicking here.

Do you have products dedicated to the manufacturers ?
VIT offers a wide range of glazing adapted to the manufacturers : glazing with sandblasting, glazing with decorative inserts, fireproof glazing, acoustic glazing, glazing with digital printing, etc.
You can find our selection by clicking here.

Do you have products dedicated to metal-workers ?
VIT offers a wide range of glazing adapted to metal-workers : burglar-proof glazing, flame-proof glazing, thermal glazing, acoustic glazing, anti-reflection glazing, etc.
You can find our selection by clicking here.

A- Do you have products for silverers ?
VIT offers a wide range of glazing adapted to building professionals and silverers : glazing for shower walls, glazing with digital printing, glazing with decorative inserts, glazing with relief, acoustic glazing, thermal glazing, solar control glazing, floor glazing, anti-reflection glazing, glazing for railings…
You can find our selection by clicking here.

How to choose your thermal glass ?
To obtain good thermal insulation performance, it is essential to use double glazing, with a low-emissivity and/or solar control side, and an argon layer, ideally 16 mm. This type of glazing provides optimum thermal insulation.

What type of glazing should be used to provide the best possible insulation in a building ?
There are several types of glazing for the best possible insulation of a building. Depending on your wishes, it is possible to use fire-resistant glazing, laminated glazing or thermal or solar control glazing! It is also possible to combine several features according to your project.
To be assisted with your project, contact a VIT consultant !

Which glazing will reduce energy bills (air conditioning in summer / heating in winter) ?
The ideal glazing for reducing energy bills is solar control glazing. It will provide enhanced thermal insulation in cold weather, by controlling light, while limiting solar gain in summer. Thus, the heat will stay inside more easily in winter and outside in summer.

Which glazing should be prioritised to ensure the security of a building, a shop window or a home ?
The most secure glazing at VIT is part of the VIT PROTECT range. It is the STOP CHOC PLUS glazing, its primary function is to prevent or delay as much as possible the entry of a potential burglar in a public place, an office or a home. Its specific composition, combining different layers of glass and PVB, ensures security. Be sure to confirm the class of protection required with the insurer of the property to be protected, as each location, each city, each risk exposure… does not necessarily require the same protection ! A little advice for installation : when mounted as insulation with a float side, do not hesitate to place the laminated side inside the building (in fact, breaking the outer side will make it more difficult to break the laminated glass, and the resistance of PVB films is optimal at room temperature!)

Click here to see our range

Which glazing should be prioritised for a meeting room ? Or a large room ?
The VIT DESIGN range includes sandblasted glass. It is ideal for meeting rooms because with its sandblasted glass, you obtain an opaque appearance while preserving the luminosity. It is a glazing that can be used both as a single pane and as an insulating pane and brings discretion to the room.

Click here to see our range

Is there bulletproof glazing ?
Of course there is! The STOP BULLET range meets these expectations! Its composition, based on different types of glass, PVB and polycarbonates, ensures the safety of people against firearms. In addition to the range of resistance to the type of weapon used, this range of glazing can be declined in 2 versions S (with vulcanising splinter) or NS (without vulcanising splinter) which makes it possible to meet all your expectations!

Find our range by clicking here

How to discover our VIT products ?
You can discover VIT products on our website by application, by theme or by trade, in our menu – Our products. You can thus discover all our product ranges according to your needs: thermal glazing, acoustic glazing, decorative or security glazing…

How do I place an order for VIT glazing products ?
To place an order, you can request a quote,  contact a VIT expert  or log on to your customer area. You can do all this on our website in the “Our services” category.

How to get a quote for VIT products ?
PTo obtain a quote, click on request a quote, and complete your glazing project by filling in the form! A VIT advisor will reply as soon as possible. You can also contact us directly on 03 85 81 48 08

Does VIT sell spare parts ?
VIT can offer you installation accessories (hinges, locks, knobs, etc.) for your fully glazed doors (Clarit and Securit types) and shower doors and partitions. We can also offer you the appropriate seals for your glazing (insulation, floor tiles, etc.) and silicones compatible with our glazing.

How can I track my orders/deliveries of VIT products ?
To track your orders and deliveries, go to the VIT LINK – Pro area section of our website. Via this tab, and with your personal codes, you will find the follow-up of your orders in your dedicated customer area.

Does VIT provide installation assistance, delivery to the site with a crane truck ?
VIT can offer you different delivery services :

  • Traditional delivery to the building site with unloading by you,
  • Delivery to the building site with a crane truck or truck-mounted unloader,
  • Delivery with installation assistance thanks to our partners equipped with cranes, mini-cranes, vacuum lifting devices, etc. Your glazing will then be delivered, handled and placed in your joinery with the greatest care to ensure smooth installation !

Simply contact VIT to set up your project and specify that you would like this assistance.