NBS Source
I'm a manufacturer

IM Fleece Tape: Window and Door airtight tape - Airtight Window & Doors Sealing Tapes

Verified by manufacturer 1 day ago

Intelligent Membranes

The very best airtightness tape for windows and connecting joints. Polyamide film covered on one side with non-woven for outside and inside sealing of window connection joints with adhesive coating.

Jump to:
BOS
+44 (0)1223 208174 Website

Application

Product Application – Airtight Tape

General

Install in accordance with the manufacturer’s written instructions to maintain continuity of the airtight and vapour control layer.

The tape shall be installed to create a durable, flexible and permanent seal at junctions, overlaps and penetrations within the building envelope.

Suitable Applications

  • Window and door perimeter sealing
  • Floor-to-wall junctions
  • Wall-to-ceiling junctions
  • Membrane overlaps
  • Airtight detailing at service penetrations
  • Connections between dissimilar substrates

Substrate Preparation

Substrates shall be:

  • Clean and dust-free
  • Dry and free from grease or release agents
  • Structurally sound and stable

Loose particles shall be removed prior to installation.

Highly porous or friable substrates should be consolidated where required.

Installation Method

  • Cut tape to required length prior to application
  • Remove release liner gradually during installation
  • Apply firmly to substrate ensuring full surface contact
  • Use pressure roller or hand pressure to ensure strong adhesion
  • Avoid creases, folds or trapped air

At corners and junctions, ensure adequate overlap to maintain airtight continuity.

Plastering and Finishing

The fleece-backed surface is suitable for plastering, skimming or painting once installed.

Ensure plaster systems fully encapsulate the fleece layer where required by specification.

Performance Requirements

The completed installation shall:

  • Maintain continuous airtightness
  • Prevent air leakage at junctions and interfaces
  • Integrate fully with adjacent membranes and coatings
  • Remain durable under normal building movement

Description

Intelligent Membranes Airtight Tape – Fleece-Backed Airtight & Vapour Control Tape

Product Description

Intelligent Membranes Airtight Tape is a premium, fleece-backed sealing tape engineered to provide durable airtightness and vapour control at critical junctions, penetrations and changes in building materials. It is designed for use in high-performance building envelopes where reliable continuity of the airtight layer is required.

The tape features a reinforced fleece surface bonded to a high-performance adhesive layer, enabling strong adhesion to common building substrates, including timber, concrete, brick, rigid membranes and vapour control layers. Once installed, the non-woven fleece backing can be plastered, painted or skimmed over, integrating seamlessly into the building fabric and remaining visually discreet while maintaining performance.

Intelligent Membranes Airtight Tape is suitable for both new build and retrofit projects and is an essential component of continuous airtightness systems, supporting design targets for energy efficiency, comfort and durability.

Key Features and Benefits

  • Premium fleece-backed construction for enhanced plaster and paint adhesion.
  • Strong adhesion to timber, brick, concrete and compatible membrane substrates.
  • Flexible and durable, suitable for corners, junctions and penetrations.
  • Weather resistant for long-term performance both internally and externally.
  • Supports airtightness targets for low-energy, Passivhaus and high-performance builds.
  • Plasterable and paintable finish for architectural integration.

Typical Applications

  • Airtight sealing of window and door perimeter junctions.
  • Floor-to-wall, wall-to-ceiling and wall-to-wall junctions.
  • Airtight detailing at service penetrations.
  • Sealing overlaps in vapour control layers and membranes.
  • Integration into airtight systems to achieve continuous barrier performance.

Key Attributes

  • Available in multiple widths (e.g., 75 mm, 100 mm, 150 mm, 200 mm) with 25 m lengths.
  • Fleece backing with high adhesive strength.
  • Flexible for use on irregular surfaces.
  • Designed for both internal and external airtight detailing.

General information

Color

White

Other

Finish

Coated

Guidance for specification option:

Adhesive coating.

Material

Fleece

Polyamide

Shape

Rectangle

Other

Length

25000 mm

Width

Bespoke

Height

Bespoke

Uniclass

Pr_35_90_87_69 Polymer-based adhesive sealant tapesPrimary

CAWS

L10/75 Sealant joints

L10/810 Sealant joints

Product range

Airtight Tapes

Specification data - Polymer-based adhesive sealant tapes

Classification data

Material

Polyamide.

Bond

Single-sided modified HMPSA adhesive.

Properties

-

Reaction to fire

To DIN EN 13501, Class E.

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0%.

Air permeability

To DIN EN 12114 (a-value): <0.1 m³.

Size

75 mm wide.
100 mm wide.
150 mm wide.
200 mm wide.

Colour

White.
Other.

Guidance for specification option:

Other colours available upon request, consult manufacturer.

Overall thickness

0.31 mm.

Guidance for specification option:

(no adhesive).

Elongation at break

To DIN EN ISO 527-3, Longitudinal: 135%; Lateral: 206%.

Breaking load

To DIN EN ISO 527-3, Longitudinal: 59 N/ 15 mm; Lateral: 45 N/ 15 mm.

Sd value

To DIN EN ISO 12572, 0.14–26.8 m.

Application temperature

-22° C to +60° C.

Sustainability data

Contains Red List materials

No

Country of material origin

Europe

Country of product manufacture

Europe

Material

Fleece
Polyamide

Recyclability

Not recyclable

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

Expected Life

25 year

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Revit
-

1

IFC
-

1

Literature

Intelligent Membranes Airtight Fleece Tape Install Guide

Intelligent Membranes Airtight Fleece Tape Install Guide

Intelligent Membranes Airtight Fleece Tape Product Sheet

Intelligent Membranes Airtight Fleece Tape Product Sheet