Intufoam Linear Gap Seal | QI
Description
Description
The Intufoam Linear Gap Seal from Quelfire is a versatile, fire-resistant solution designed for sealing linear joints and the junctions between compartment walls and floors.
Its compressible foam core allows for a range of joint widths and offers flexibility. A number of products are available to suit various gap sizes, orientations, and fire rating requirements.
The QI Intufoam is tested to BS EN 1366-4 for linear gap seals. The QI50/45 has also been tested to BS EN 1366-3 when used with the QuelStop Fire Batt system. The intufoam’s fire testing ensures the effective compartmentation of the building, helping to prevent the spread of fire and smoke to the adjoining compartment.
Standards & Approvals
Standards & Approvals
The system consists of 1-metre lengths of a compressible foam core, covered with a flexible intumescent material.
Different products in the range have varying numbers of material layers, making them suitable for different gap sizes and applications.
Intufoam offers a dependable, easy-to-install fire seal designed to block fire from passing through linear gaps between non-combustible surfaces, where some movement might be necessary.
The product is tested as outlined in the relevant test reports and subsequent standard installation details, typically between concrete surfaces and QuelStop Fire Batt. Its compatibility with other substrates cannot be confirmed by us and should be determined or verified by a qualified fire engineer.
Typical instances where the Intufoam may be considered are as follows:
- Vertical joints in concrete walls.
- Horizontal joints in concrete floors.
- Head of wall to underside of a concrete floor.
- Head of wall as part of a QuelStop Fire Batt service penetration seal.
Intufoam’s excellent compression and recovery enable movement within the product; the minimum and maximum gap sizes are outlined in the table below. In the event of a fire, the product will react by turning into a carbonaceous char that seals the gap.
Installation is by hand, the 1 metre lengths are simply compressed by hand and inserted in the linear gap where they will then expand holding themselves in place. Individual lengths should be installed with a tight butt joint, end to end. Where necessary to complete the length, Intufoam can be cut with a sharp knife or saw before inserting into the gap.
In some cases, a single or double width seal is required, and it may also be necessary to set the intufoam back from the exposed front face of the wall or floor. Refer to the specific installation details for complete information.
*Please note that custom made items can expect to have longer lead times. Next working day is typical but can depend on outside factors not controlled by Quelfire.
Product Info & Features
Product Information
| Property | Details |
|---|---|
| Composition | QI Intufoam Linear Gap Seal is manufactured from compressible foam, impregnated with fire retardant chemicals. The foam is then bonded to a graphite-based intumescent material to form a composite seal. In the event of fire, this expands to maintain the fire stop seal. |
Features & Benefits
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Lightweight and easy to handle
-
Provides various fire ratings
-
Suitable for various gaps
-
Compressible by hand
-
Suitable for vertical joints in walls
-
Suitable for horizontal joints in floors
-
Suitable for horizontal joints at head of wall
Product Information
| Property | Details |
|---|---|
| Composition | QI Intufoam Linear Gap Seal is manufactured from compressible foam, impregnated with fire retardant chemicals. The foam is then bonded to a graphite-based intumescent material to form a composite seal. In the event of fire, this expands to maintain the fire stop seal. |
Features & Benefits
-
Lightweight and easy to handle
-
Provides various fire ratings
-
Suitable for various gaps
-
Compressible by hand
-
Suitable for vertical joints in walls
-
Suitable for horizontal joints in floors
-
Suitable for horizontal joints at head of wall
Specification Details
| Product Code | Suitable for Gaps | Compressible Range | Width of the Seal |
|---|---|---|---|
| QI25/30 | 10 to 25mm | 15mm | 30mm |
| QI50/30 | 25 to 50mm | 25mm | 30mm |
| QI50/45 | 25 to 50mm | 25mm | 45mm |
| QI75/45 | 40 to 75mm | 35mm | 45mm |
| Product Code | Suitable for Gaps | Compressible Range | Width of the Seal |
|---|---|---|---|
| QI25/30 | 10 to 25mm | 15mm | 30mm |
| QI50/30 | 25 to 50mm | 25mm | 30mm |
| QI50/45 | 25 to 50mm | 25mm | 45mm |
| QI75/45 | 40 to 75mm | 35mm | 45mm |
Standard Installation Detail Examples
| File | |
|---|---|
| QI-LJ-H-01 | Horizontal Linear Joint - Concrete to Concrete (150mm or thicker) | View |
| QI0LJ-H-02 | Horizontal Linear Joint - Concrete to Concrete (100mm or thicker) | View |
| QI-LJ-T-01 | Head of Wall Linear Joint - Concrete to Concrete (150mm or thicker) | View |
| QI-LJ-T-02 | Head of Wall Linear Joint - Concrete to Concrete (100mm or thicker) | View |
| QI-LJ-V-01 | Vertical Linear Joint - Concrete to Concrete (100mm or thicker) | View |
Browse More Tested Details
We have listed just five examples of tested details using the QI Intufoam Linear Gap Seal, though there are more available. In total, our standard installation details library contains over 600 tested details across our full product range.
Videos
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Firestopping Product Spotlight: QI Intufoam Linear Gap Seal
In this video, Glenn Hutchins (Business Development Manager, North) gives a short introduction to our QI Intufoam Linear Gap Seal. This versatile firestopping product is intended to provide a fire stop seal for linear joints or at the junction of compartment floors and walls.
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Firestopping Tested Detail: Intufoam on the Underside of a Concrete Slab
Intufoam is a compressible foam with intumescent embedded into it. It is tested as a linear gap joint seal and also has been tested in conjunction with our QuelStop Fire Batt. In this video, it has been embedded on top of a pattress fitted Fire Batt, on the underside of a concrete slab.
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Firestopping Tested Detail: Linear Joint | Head of Wall – Concrete to Concrete (100mm or Thicker)
Historically, we have tested linear joint seals in 150mm thick rigid walls and floors. However, after reoccurring customer feedback that many brick or block walls are now just 100mm to 130mm thick, we have tested our QI Intufoam to cover wall thickness of 100mm.
Frequently Asked Questions About Intufoam Linear Gap Seal
What is QI Intufoam Linear Gap Seal?
What is QI Intufoam Linear Gap Seal?
QI Intufoam is an intumescent foam strip designed to reinstate the fire performance of linear gaps and movement joints in walls and floors.
Does QI Intufoam allow for movement in joints?
Does QI Intufoam allow for movement in joints?
Yes – it is designed to accommodate a degree of building movement while still maintaining fire performance.
Is QI Intufoam tested to recognised standards?
Is QI Intufoam tested to recognised standards?
Linear gap seals are tested to BS EN 1366-4, which specifies the fire resistance testing method for linear joint seals.
Does QI Intufoam require maintenance?
Does QI Intufoam require maintenance?
It should be inspected as part of routine firestopping maintenance checks, especially where joints may be subject to movement or alteration.
