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Sealing and insulation of windows and doors

Project type
Renovation
New construction
Prefabricated
Construction method
Timber construction (timber frame, CLT,...)
Masonry (or concrete)
Steel frame construction
Construction element
Carpentry (windows and doors)
Functions
Airtightness
Internal insulation
External insulation
Rain, water, and windproof connections
Category
Totaaloplossing
Technisch
Online opleiding
Video

No matter how high the quality of your double or triple glazing may be... gaps around your window will drastically reduce the return on your investment. Cracks and openings allow wind, drafts, temperature fluctuations, moisture, noise, structural damage, and mould to enter.

By properly insulating and sealing your window and door frames, you ensure that the performance of your new windows remains intact and your building stays healthy.

The text on this page was automatically translated. Minor translation errors are possible. In case of doubt, the original versions (Dutch and French) are correct.

Project type
Renovation
New construction
Prefabricated
Construction method
Timber construction (timber frame, CLT,...)
Masonry (or concrete)
Steel frame construction
Construction element
Carpentry (windows and doors)
Functions
Airtightness
Internal insulation
External insulation
Rain, water, and windproof connections
Category
Totaaloplossing
Technisch
Online opleiding
Video

Our solution: Sealing and insulation around joinery

This complete solution provides sustainable options for the insulation, airtightness, and wind and rain protection of windows, sliding doors, and entry doors.

We offer reliable and cost-effective solutions for both solid masonry and timber frame constructions, suitable for renovation as well as new builds.

In this guide, we focus on the following variants:

Timber frame construction

A sustainable solution for airtight finishing in both timber frame and solid wall construction. Flexibele tapes and sealing strips provide efficient sealing, accommodating building material movement and preventing energy loss.

Masonry

An innovative solution for window installation: an insulating window frame provides perfect thermal separation and enables straightforward, efficient, and durable front-of-wall mounting on concrete, ETICS, and masonry.

Products used

Depending on the selected variant, we work with the following products:

Timber construction: flexible tape

pro clima CONTEGA SOLIDO IQ-D 
One tape for most applications

Alternatives:

Accessories:

Masonry: insulating window frame

blaugelb Triotherm+ insulating window frame
Front-of-wall installation system for concrete, ETICS, and masonry.

Essential questions for proper sealing and connection

A proper seal starts with asking the right questions. Do not randomly select a profile, sealing strip or tape. Instead, carefully consider what best suits your specific situation. Our handy product guide will help you make an informed choice.

The key questions to ask yourself:

  1. What is the purpose of the seal?
    • Airtightness
    • Wind and driving rain resistance
    • Watertightness, including standing water
    • Mechanical stability
       
  2. Where is the seal located in relation to the insulation?
    • Warm side: vapour-retarding
    • Cold side: vapour-open
       
  3. How is the window installed?
    • Side of the window frame
    • Front of the window frame
       
  4. What is the substrate?
    • Even or uneven, wood, mineral or metal
    • Stable or unstable
    • Dry joinery or wet (plaster-ready) substrate
       
  5. What is the interior finish?
    • Plaster
    • Casing
    • Plasterboard

Use the guide as your decision-making tool

The illustration above from our brochure shows how different factors come together when selecting the right product. By answering these questions, you make a well-informed choice that fits your project perfectly.

Or try our interactive product guide: we walk you through each step to find the right products for your specific construction project.

Paul Eykens
Technisch adviseur
foto-paul-eykens