Name: uPVC Window VEKA SL 76
Brand: Veka

Specifications
Description
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Pricelist
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Specifications

Number of chambers	5
Depth of the frame [mm]	76
U-value	0.8
Maximum thickness of the glazing unit [mm]	48
Opening direction	Inwards
Profile thickness	Class A
Number of gaskets	3
Wind resistance	B2
Water resistance	7A
Acoustic insulation	up to 47 dB
Air permeability	Class 4
Brand	Veka

Opening direction

There are two window opening directions possible: inwards or outwards. When you want to determine the window opening direction, you have to stand at the side where you can see the hinges. If you are standing outside the building and the windows open towards you, these are outward-opening windows. If, on the other hand, you are standing inside the building and the windows open towards you, these are inward-opening windows.

Thickness of the glazing unit

A glazing unit is a structure consisting of two, three, or even four panes of glazing separated from each other by a distance frame, sealants and vapour-absorbing gas (argon \ krypton). The thickness of the glazing unit is the overall measurement, from the outside glass surface to the inside glass surface. The average double glazing thickness is about 24 mm while triple-glazed windows are 42 – 48 mm in thickness on average. The number of panes in a glazing unit affects the improvement of the U-value parameter

Number of chambers

The number of chambers in the window affects the thermal insulation of the window. The chambers keep air from circulating and in this way they create an additional insulating layer. Energy-saving (passive) windows most often come with a 6-chamber structure and a built-in depth of over 80 mm. Window chambers also increase the structural strength of a window and add to its overall stiffness

Number of gaskets

window gaskets prevent draughts and water from entering into your home. They are also a barrier for the outside noise and an effective way to keep warm air in – and thus, lower your energy bills. Two gaskets are necessary for the window to fulfil its function properly, while the central (third) gasket is not necessary. However, it has been proven that window structures with a central gasket are tighter, both in terms of air permeability and water-tightness, than structures without a middle gasket. Also, third gasket affects the improvement of the U-value parameter.

Profile thickness

The walls of the window chambers have different thickness, which determines the class of the profile. The thickness of the profiles is defined by the PN-EN 12608: 2004 standard. Profiles can have three classes: A, B and C. This parameter specifies the wall thickness of the profiles. The Class A profiles have outer walls with a thickness of ≥ 2.8 mm. Class B ≥ 2.5 mm. The standard does not define any requirements for class C sections. Class A profiles are the best choice as they provide us with the best window insulation. However, while selecting the so- called “warm” windows, you should also pay attention to such elements as the number of chambers, gaskets, type of the fittings, warm edge spacer, and glazing unit.

Wind resistance

It is one of the most important properties of windows and doors. It determines the safety of the entire structure, as it indicates the amount of pressure caused by wind that the window or door structure is able to resist without serious damage. The classification of wind-resistant windows is carried out in accordance with PN-EN 14351-1. The wind load resistance of the window is described by two symbols: the number (1-5) which indicates the pressure of wind applied to the product and the letter (A-C) which indicates the amount of accepted deflection.

Water resistance

It is the capacity to avoid water leakages under wind and rain at the same time. Leakage is defined as the appearance of uncontrolled water (other than condensation) on the inner surface of the product. Obviously, the doors and windows with good waterproof performance can effectively prevent water from entering into their internal structure and – as a result – ensure a longer service life. The classification ranges from Class 0 (no test) to Class 7A for windows and Class 3A for doors.

Air permeability

It is the measurement showing how easily air can pass through a window or a door. The European Standard regarding air permeability in windows and doors is EN 12207. It classifies windows or doors according to their capability to prevent air travel through the system. This capability is measured on a scale, from Class 1 (less tightness) to Class 4 (higher tightness). A window or a door system with a higher level of air tightness is more energy-efficient, as less heated air escapes through it.

Uw (U-value)

The window’s heat transfer coefficient. It informs you about the level of window thermal insulation. The Uw (U- value) shows how much heat will penetrate 1 m2 of a window in one hour, with a difference between the temperatures on both sides of the window of one degree. This means that the lower the Uw coefficient, the better the window’s thermal insulation is.

Acoustic insulation (Rw)

Acoustic insulation coefficient. It determines the insulation of the window against noise from the outside. The unit of measurement is decibels (dB). This parameter is influenced by: the thickness of the glazing in the glazing unit, the use of PVB laminated glass or the use of an acoustic foil.

VEKA SL 76

VEKA SL 76 combines advanced insulation technology with solid security features. Its multi-chambered design and triple sealing system ensure optimal protection against noise, weather and heat loss. With steel reinforcements and high-quality fittings, it also serves as a reliable barrier against break-ins. A perfect choice for anyone looking to enhance indoor comfort while reducing energy bills.

VEKA SL 76 – benefits

5-chamber profile construction and triple sealing system for impressive thermal and acoustic insulation
Uw values as low as 0.8 W/m²K when equipped with a warm edge spacer
Installation depth of 76 mm
Triple-glazed unit (48 mm) fitted deep in the sash – 28 mm glazing depth
High-quality SIEGENIA TITAN AF fittings as standard
Security locking points for increased protection and smooth operation
Steel reinforcements in frame and sash for structural stability and burglary resistance
Classic design with gently rounded edges and slim visible surfaces – blends well with both traditional and modern architectural styles
Wide colour range including wood-like and metallic finishes
Suitable for large glazing areas due to slim, elegant profiles
Recommended for new builds and renovations
Available in a wide range of colours

Colours

Standard colours

Agate Grey

Aluminium Brushed

Aluminium Brushed Silver

Alux Aluminium Grey

Alux DB

Basalt Grey

Basalt Grey Smooth

Black and Brown

Diamond Blue

Brown

Brushed Brass

Carmine Red

Cobalt Blue

Creamy White

Dark Grey

Dark Grey Silk

Dark Green

Douglas

Emerald Green

Golden Oak

Green

Ivory

Jet Black

Light Grey

Light Oak

Macore

Mahogany

Maroon

Monumental Blue

Monumental Green

Mountain Pine

Navy

Nut

Oregon III

Palisander

Papyrus White

Platinum Crown

Platinum Earl

Platinum-Quartz

Quartz Grey

Quartz Grey Smooth

Red-Brown

Ruby Red

Shaded Douglas

Sheffield Grey Oak

Sheffield Light Oak

Shogun AC

Shogun AD

Shogun AF

Siena PN

Siena PR

Silver Grey

Silver-Grey Smooth

Slate Grey

Slate Grey Smooth

Structural Oak

Swamp Oak

Umbra Ultra Mat

White

Winchester XA

Yellow

REH 01

Price list

The prices shown in the Price List are for white, double-glazed and/or triple-glazed products and do not include accessories or custom sizes and dimensions. Additionally, each colour change affects the final price of the product in the following way:

Aluminium windows and sliding systems:

The Customer pays 3-5% more for a one-sided coating or two-sided coating.

uPVC windows:

The Customer pays 10-20% more for a one-sided veneer and 25-35% more for a two-sided veneer.

uPVC sliding doors:

The Customer pays 5-10% more for a one-sided veneer and 10-15% more for a two-sided veneer.

The presented price offer is for information purposes only. If you want to know the detailed quote on your individual order, please contact our Sales Team. We will get back to you with the final price that is tailored to your specific needs – free of charge!