PVC W3

High-insulation PVC for comfort, energy efficiency and versatile design.

W3 is the MOSCA PVC system, designed to deliver comfort, energy efficiency and practicality in a clean, versatile design.

MOSCA builds W3 from selected PVC profiles, machined and configured to produce a finished window that protects interiors from cold, heat, noise and draughts.

It is suited to homes, hospitality venues, professional premises and renovation projects that call for insulation, durability, easy upkeep and an aesthetic that adapts to different settings.

W3 is designed for those looking for a functional, reliable window: efficient in performance, refined in design, practical in everyday use.

Comparison between standard frame width and W3 frame width
W3 in PVC, interior side — front view
W3 in PVC, exterior side — front view

Premium Partner

Deceuninck

For its PVC systems, MOSCA relies on Deceuninck as its Premium Partner for the supply of profiles.

This partnership means starting from a qualified raw material, tested and developed for the window industry, which MOSCA machines and configures within its own production process to produce finished, customised windows and French windows suited to the needs of the project.

The profiles supplied by Deceuninck undergo specific testing for durability, thermal insulation properties and resistance to air, water and wind.

They are also classified as class “S”, where “S” stands for “Severe Climate”: a classification particularly well suited to the Italian climate.

The final value comes from combining the technical quality of the profile with MOSCA's expertise in designing, machining, configuring and building the finished window.

Interior with W3 PVC windows

Design

Slim profile

The slim profile is one of W3's distinctive features: a PVC solution designed to reduce the visual presence of the window and make the most of the glazed surface.

The essential lines and compact proportions of the profile leave more room for natural light and encourage a more direct relationship between indoors and outdoors.

The clean design allows the window to blend discreetly into the architecture, while retaining the insulation, practicality and durability of a PVC system.

W3 is therefore suited to homes, renovations and professional spaces where visual lightness and aesthetic coherence are an integral part of the project.

Material

PVC

W3 uses PVC profiles designed to ensure insulation, stability and durability.

PVC is a material particularly suited to efficient windows: it helps limit heat loss, reduces the transmission of outside noise and requires only simple maintenance.

The quality of the profile, combined with MOSCA's fabrication, produces a window that is reliable, durable and suited to both new builds and renovations.

PVC surfaces keep a neat, clean appearance over time, with no need for periodic painting or special treatments. Water and mild detergents are all that is needed for routine maintenance.

Insulation

Comfort and efficiency

W3 is designed to improve indoor comfort.

The profile structure, together with the choice of glass and the quality of the gaskets, helps reduce the transfer of heat and cold between outside and inside.

This helps keep a more stable temperature in living spaces and improves the building's energy performance.

W3 is therefore a solution suited to energy-efficiency renovations, private homes, hospitality facilities and professional spaces where comfort, efficiency and durability are central.

Double glazing with flat glazing bead
Double glazing
with flat glazing bead
Double glazing with rounded glazing bead
Double glazing
with rounded glazing bead

Performance

W3 is designed to deliver high performance in terms of insulation, comfort, sealing, security and durability.

The quality of the profiles, the glass configuration, the correct integration of the gaskets and MOSCA's fabrication combine to produce a reliable window suited to a variety of design requirements.

Key features

  • PVC system
  • PVC profiles supplied by a qualified Premium Partner
  • Class “S” profiles for Severe Climates
  • Protection from outside temperatures, noise and draughts
  • Resistance to air, water and wind
  • Configurable with high-performance glazing
  • Suited to new builds, renovations and energy-efficiency renovations
  • Wide range of aesthetic customisation options
  • Easy maintenance
  • Recyclable profiles

Available opening types

Available opening types: single and double side-hung, bottom-hung and tilt-and-turn
W3 — Flat glazing bead — Side Section / L Frame - Sash

Flat glazing bead — Side Section / L Frame - Sash

W3 — Flat glazing bead — Bottom Section / Threshold - Sash

Flat glazing bead — Bottom Section / Threshold - Sash

W3 — Flat glazing bead — Central Section / Symmetrical

Flat glazing bead — Central Section / Symmetrical

W3 — Rounded glazing bead — Side Section / L Frame - Sash

Rounded glazing bead — Side Section / L Frame - Sash

W3 — Rounded glazing bead — Bottom Section / Threshold - Sash

Rounded glazing bead — Bottom Section / Threshold - Sash

Customisation

W3 offers extensive scope for aesthetic customisation, with a range of colours and finishes designed to suit different architectural styles.

The available finishes include natural wood effects, painted wood effects, solid colours and metallic effects, so the window can be integrated into both contemporary settings and restoration or renovation projects.

Wood-effect shades suit warmer, more traditional interiors; solid colours meet clean, modern requirements; metallic effects give a more technical, architectural look.

The availability of gloss or matt finishes, together with the option of concealed drainage with low visual impact, helps make the window more consistent with the architectural design.

Customisation makes it possible to harmonise the window with the project's façades, interiors, floors, furnishings and materials.

W3 section detail

Thermal classification

Windows have a significant impact on a building's energy performance.

Assessing heat loss and the passage of solar energy through the windows gives a better understanding of how efficient the whole building envelope is.

W3 contributes to this balance: it limits heat loss, improves indoor comfort and supports more efficient energy management indoors.

Sealing

Air, water and wind

Sealing is essential to protect interiors and maintain consistent performance over time.

In the W3 system, the correct integration of profile, gaskets, glass and hardware helps to counter infiltration, draughts, outside noise and the weather.

The profiles used are designed to ensure resistance to air, water and wind, contributing to system stability and everyday comfort.

Transparency

Glazing

W3 can be configured with high-performance glass, chosen according to requirements for thermal insulation, acoustic comfort, security and brightness.

The choice of glass has a direct impact on the window's behaviour and allows the product to be adapted to the home or the project.

The various configurations available help improve indoor comfort, limit heat loss and increase protection from the elements.

Security

Hardware and configuration

The security of a window depends on the quality of the profile, the hardware, the glass and the overall configuration of the product.

W3 can be configured with solutions designed to increase stability, strength and protection in everyday use.

The hardware contributes to the functionality and durability of the window, ensuring practical, smooth and reliable opening and closing.

The accessories and configurations available are defined according to the needs of the project, the intended use and the level of protection required.

W3 threshold profile

Sustainability

W3 approaches sustainability through efficiency, durability and recyclability.

A well-designed PVC window helps reduce energy loss, improve indoor comfort and keep heating and cooling consumption down.

The profiles used for W3 have a long life cycle and are recyclable, allowing the material to be recovered at the end of its life and returned to the production cycle.

For MOSCA, sustainability starts with the quality of the finished product: designing and building windows that are efficient, durable and able to maintain their performance over time.

Why choose W3

Choosing W3 means choosing a PVC window that combines comfort, efficiency, practicality and aesthetic care.

For professionals, W3 offers a versatile solution suited to a wide range of projects, from new builds to renovation work.

For the end client, it means windows and French windows that are more comfortable, quieter, easier to manage and more efficient every day.

W3 is MOSCA's answer for anyone looking for a reliable PVC window: insulating in performance, elegant in design, easy to live with over time.

To find out more about the configurations, finishes and solutions available, the MOSCA team is at the disposal of designers, dealers and end customers.

Request information

What's Your Frame?
Woman in a white dress opening a large window in a period building
Shadow of a flower and light from a window on fabric
Young man sitting on the windowsill between velvet curtains
Light from a window drawing stripes across a woman's shoulder
Hand in the light from a window, with its shadow on the wall
Shadow of a palm leaf on a pale wall
Backlit elderly man sitting in front of a curtained window
Backlit woman sitting in front of a window with dark curtains
Ballerina at the barre in front of a large, bright window
Family chatting on the sofa beside large windows
Woman walking through a loft crossed by light from the windows
Man looking out of a French window opening onto a balcony
Person at a desk beside a window with a curtain and a plant
Backlit man in front of a small wooden window