Polyethylene foam expansion joint filler rolls for brickwork and blockwork. Low moisture absorption, good expansion and contraction properties. Available in multiple widths on 10m rolls. Other sizes available to order.
Available options and pricing for BRICKFILL Movement Expansion Joint Filler Rolls, with quantity selectors and a running total
Size
SKU
Price
QTY
Total
10 x 10m x 100mm
BRICKFILL100MM-WHITE
£7.50£9.00
—
10 x 10m x 150mm
BRICKFILL150MM-WHITE
£9.90£11.88
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10 x 10m x 200mm
BRICKFILL200MM-WHITE
£14.50£17.40
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Expansion joint filler is one of those products that does a quiet but essential job. Get it wrong and you end up with cracked masonry, water ingress, or joints that look like an afterthought. These BRICKFILL polyethylene foam rolls give you a reliable, compressible fill that accommodates natural movement in the structure without failing over time.
The foam is made from closed-cell polyethylene, which keeps moisture absorption low. That matters on external walls and ground-level work where the joint is exposed to rain, ground water, or condensation. A filler that soaks up water will eventually degrade, compress unevenly, or create problems for the sealant applied on top. This one is designed to resist that from the start.
Where BRICKFILL Expansion Joint Filler Gets Used
These rolls are sized for brickwork and blockwork applications. The 100mm, 150mm, and 200mm widths correspond to common wall thicknesses and joint depths, so you are not cutting down a wider roll and wasting material on every run. Each roll is 10 metres, which covers a decent length of movement joint on a standard commercial or residential build.
The foam compresses cleanly when pushed into the joint, holds its position while the backing is in place, and gives the sealant a firm, consistent backing to bond against. It also acts as a bond breaker, stopping the sealant from adhering to the back of the joint and allowing it to move properly under load.
White or Cream: What Is the Difference?
White foam is the economy option and suits most standard applications. Cream foam offers better expansion and contraction performance and is the one to specify where the joint will see more significant or frequent movement. If you are not sure which to use, the cream is the safer choice for external or structural joints.
Other sizes are available to order if the standard stock sizes do not suit your specification.
Pro Tip: Always size the filler so it compresses by around 25 to 50 percent when fitted, which keeps it held firmly in place and gives the sealant on top the correct backing pressure to perform properly.
Expansion joint filler rolls are used wherever a movement joint is formed in brickwork or blockwork construction. That includes external cavity walls, internal block partitions, retaining walls, and any masonry structure where thermal or structural movement needs to be accommodated. They are commonly specified on new-build housing, commercial buildings, and civil engineering projects where the structural engineer or architect has detailed movement joints at regular intervals.
The filler sits behind the sealant, providing a compressible backing that controls joint depth, acts as a bond breaker, and prevents three-sided adhesion. They are also used in concrete work where joints between poured sections need a pre-formed filler prior to sealing.
Best For
Expansion joints in brickwork
Movement joints in blockwork
External cavity walls
Retaining walls
Concrete movement joints
New-build and refurbishment
Available In
100mm width
150mm width
200mm width
10m roll length
White (economy)
Cream (enhanced movement performance)
Other sizes available to order
Key Properties
Closed-cell polyethylene foam
Low moisture absorption
Compressible and recoverable
Acts as a sealant bond breaker
Controls joint depth for sealant application
Suitable for external exposure
Not suitable for: Not suitable as a standalone weatherproof seal. Expansion joint filler must always be used in conjunction with an appropriate joint sealant applied over the top. Not intended for fire-rated or acoustic movement joint applications without additional specification.
Cut the roll to length and press the foam firmly into the prepared joint, ensuring it sits at the correct depth to leave room for the sealant above. The foam should be compressed slightly on fitting so it stays in place without adhesive. Check the joint is clean and dry before fitting, and make sure the foam face is flush or set back to the correct sealant depth before applying the sealant coat.
Check the joint is clean, dry, and free from loose material before starting
Select the correct width of filler roll to match your joint and wall thickness
Cut the foam to the required length using a sharp knife or scissors
Press the foam firmly into the joint so it compresses slightly and sits securely
Set the foam at the correct depth to leave the specified sealant recess above it
Apply your compatible joint sealant over the foam backing to complete the joint
What is the difference between the white and cream expansion joint filler?
White is the economy grade and performs well in standard applications. Cream foam offers better expansion and contraction performance, making it the better choice for joints that will see more significant thermal or structural movement. For external or structurally critical joints, cream is generally the safer option to specify.
Do I need to use a sealant over the top of the expansion joint filler?
Yes. The foam filler is a backing material, not a weatherproof seal on its own. You must apply a suitable joint sealant over the top to complete the joint and provide weather resistance. The foam controls the depth of sealant and acts as a bond breaker to ensure the sealant moves correctly.
BRICKFILL expansion joint filler rolls are manufactured from closed-cell polyethylene foam, which provides a low moisture absorption rate and consistent compressibility across the length of the roll. The closed-cell structure resists water penetration and maintains its shape and recovery properties over time. Available in widths of 100mm, 150mm, and 200mm on 10m rolls, with further sizes available to order.
Material
Closed-cell polyethylene foam
Roll Length
10 metres
Available Widths
100mm, 150mm, 200mm
Colours
White (economy), Cream (enhanced movement)
Moisture Absorption
Low
Application
Brickwork and blockwork expansion joints
Size
10 x 10m x 100mm, 10 x 10m x 150mm, 10 x 10m x 200mm
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