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Guide · Thermal insulation

Better comfort needs space too.

An internal system can add insulation alongside an existing wall. Before choosing it, understand the space it occupies, the elements it changes and the conditions requiring review.

Thickness is a decision about the whole system

The supporting structure, insulation and boards form a configuration. Final thickness should not be chosen only to minimise lost space: it needs to respond to the conditions and purpose of the work. Ask the proposal to identify the intended system.

Draw what changes in the room

Check how windows, skirting boards, radiators, sockets and furniture will be affected. A small wall change can influence a door or existing fitted wardrobe. Pointing these elements out early helps assess junctions and related tasks.

A stain deserves investigation

Do not close a damp wall without reviewing the context. A leak, ventilation issue and condensation are not the same cause. The intervention should be defined after understanding the conditions that need resolving.

Describe where comfort is lacking

Identify the room, the affected wall and when the issue is noticeable. Add orientation, windows and other observations you know. These are initial assessment details, not a way to calculate guaranteed savings or results.

  • The room and walls you want to improve.
  • Clear space beside each wall.
  • Fixed elements and services.
  • Visible damp or condensation.
  • The space’s typical use and occupancy.

What to review before accepting

Confirm the configuration, area, approximate thickness, junction adaptations and finishing. A measurement or sketch can help you see the new wall position and how it affects furniture. Ask what is excluded. Insulation with drywall and the installation of heating or cooling equipment are different interventions: NIVAREL focuses on the first.