Materials and advice for better insulation

BA10 walls, with their thickness of 10 mm, offer a solid basis for internal separations, but their insulation often remains insufficient. Whether to reduce heat loss or reduce noise, different techniques and materials can improve performance. In this article we explore the most effective methods, suitable materials and tips to make your project a success.

Thermal and acoustic insulation methods

Glued lining: a quick and compact solution

THE pasted dubbing consists of fixing an insulating plasterboard directly onto the existing partition. This method, ideal for regular walls, combines speed and efficiency. Prefabricated panels (e.g polyurethane SIS REVE SI with R=1.35 m².K/W) integrate insulation and plasterboard into a single element, limiting space losses (from 5 to 10 cm of total thickness).

Advantages :

• One day installation by a professional
• Suitable for renovations without demolition
• Compatible with existing electrical networks

Limits :

• Moderate sound insulation
• Requires walls in good condition

Installation on a metal structure: flexibility and performance

For irregular partitions or complex projects, themetal structure offers a modular structure. This method allows you to insert insulation (glass wool, rock wool) between the profiles before covering with plasterboard.

Key steps :

1. Installation of tracks and metal profiles
2. Filling empty spaces with insulation
3. Installation of plasterboard (BA15 or BA18 to reinforce insulation)

Advantages :

• Easily integrate technical networks (electricity, plumbing)
• Total thickness from 10 to 15 cm
• Optimal thermal and acoustic insulation

Disadvantages :

• Longer installation times (2 to 3 days)
• Cost slightly higher than glued lining

The insulating false wall: reinforcement performance

This technique consists of creating a independent structure in front of the existing partition. Insulation is placed between the two walls, providing a reinforced thermal and acoustic barrier.

Recommended materials :

• Rock wool (R=0.04 to 0.05 W/mK) for long-lasting insulation
• Glass wool (R=0.035 to 0.04 W/mK) for limited budgets

Precautions :

• Check the absence of condensation before installation
• Leave a space of 8 to 12 cm between the dividers

Insulation blowing: discreet and effective

Ideal for old partition walls, theinsufflation uses loose materials (cellulose wadding, mineral wool) injected through orifices.

Advantages :

• Non-invasive (no demolition)
• Completed in a few hours
• Suitable for old houses

Limits :

• Reduced sound insulation
• It requires a preventive diagnosis to check the tightness of the cavities

Key materials for efficient insulation

Thermal insulators: choose the thermal resistance (R)

THE thermal resistance (R) determines the effectiveness of an insulator. The higher the R, the more efficient the insulation.

| Material | R (m².K/W) | Typical thickness | Recommended use |
|||-|-|
| Polyurethane | 1.35| 40mm | Internal partitions |
| Rock wool | 0.04 | from 50 to 100mm | Counterpartitions |
| Depron 9mm | 0.30| 9mm | Light dubbing |
| Glass wool | 0.035 | from 50 to 100mm | Metal frames |

Suggestions :

• Favor the isolation of biological origin (cellulose wadding) for an ecological approach
• Combine different materials to optimize R and costs

Plasterboard: thickness and characteristics

The choice of plaster influences both solidity and insulation.

Types of dishes :

• BA10 : Base for light partition walls (10 mm)
• BA15 : Greater resistance, ideal for kitchens or humid areas
• BA18 : Reinforced thermal and acoustic insulation (18 mm)

Advise :

• Usage sound plates for bedrooms or living rooms
• Opt for water-repellent plates in the bathrooms

Mistakes to avoid in insulation

Neglect the initial state of the partition

A cracked or warped wall compromises the effectiveness of the insulation. Before any intervention check:

• The absence of mold or infiltrations
• The flatness of the walls (for glued cladding)

Underestimate the thickness of the insulation

Too thin insulation reduces performance. Example :

• Depron 9 mm : R=0.30 m².K/W (ideal for moderate gain)
• Polyurethane 40mm : R=1.35 m².K/W (high performance insulation)

Forget about airtightness

Thermal bridges and air infiltrations nullify insulation efforts. Usage:

• Del sealing strips around the openings
• AND smoothing coating for joints

Contact a professional: optimize financial aid

Eligible insulation works help with renovation (MaPrimeRénov', CEE) often require the intervention of a qualified craftsman.

Advantages :

• Precise diagnosis to choose the appropriate method
• Ten-year guarantee on materials and installation
• Access to subsidies (up to 50% of the total cost)

Recommended platforms :

• Habitatsoon : Network of certified professionals

• Gedimat : Supplier of specialized materials (gypsum plasterboards, insulation)

  : Optimize your BA10 partition in 3 steps

1. Assess needs : Thermal, acoustic or both?
2. Choose the method : Bonded lining for speed, metal construction for versatility.
3. Select materials : Polyurethane for high R, rock wool for strength.

By combining these elements you will transform a BA10 partition wall into a key element of your home comfort. For lasting results, favor professional interventions and take advantage of the financial aid available.