06/10/25

Internal Structure of PVC Profile

Basic Profile Structure

PVC profile is a complex engineering construction consisting of several functional elements. Externally, it appears as a smooth plastic beam, but internally, it contains a sophisticated system of components.

Main Structural Elements

Metal Reinforcement — steel frame inside the profile:

• Provides structural rigidity
• Prevents deformation
• Metal thickness: 1.2–1.5 mm
• Shape: P-shaped or G-shaped

Chamber System — air cavities inside the profile:

• Number of chambers: from 3 to 6 or more
• Insulates heat loss
• Improves sound insulation
• Creates a barrier between the external environment and the room

Functional Components

Drainage System includes:

• Condensation drainage holes
• Moisture removal channels
• Protective caps

Sealing System ensures:

• Structural tightness
• Protection against drafts
• Sound insulation

Design Features

External Elements of the profile:

• Decorative coating
• Mounting surfaces
• Hardware attachment points

Internal Components:

• Separating walls between chambers
• Reinforced elements
• Attachment nodes

Operating Principle

Thermal Insulation is provided by:

• Multi-chamber structure
• Air layers
• Quality reinforcement

Structural Strength is achieved through:

• Steel frame
• Proper load distribution
• Quality connection of elements

When choosing a profile, it is important to pay attention to the number of chambers, wall thickness, and reinforcement quality, as these parameters determine the window’s durability and performance characteristics.