Masonry Cavity Barrier 120mm x 100mm x 1200mm
Masonry Cavity Barrier 120mm x 100mm x 1200mm
(Approx. 3-5 working days)
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The Concept Conversions Masonry Stop Sock is a flexible mineral wool slab fully enclosed in a polythene sleeve. This 120mm x 100mm x 1200mm variant is designed to restrict fire penetration and reduce sound transmission through masonry cavity walls. It serves as a combined fire, thermal, and acoustic barrier, suitable for cavities measuring between 80mm and 110mm in width.
These Cavity Barriers are supplied 10mm to 15mm thicker than the target cavity to ensure a secure friction fit without the need for mechanical fixings. During vertical installation, the barrier is compressed between the inner blockwork and outer brickwork as the wall is built up. For horizontal applications, the brick and blockwork are raised to the required level, and the barrier is friction-fitted once the mortar has set. Lengths must be tightly butt-jointed to maintain the integrity of the barrier, ensuring no gaps are left.
The mineral wool core achieves a Euroclass A1 fire classification under BS EN 13501-1, and the barrier exceeds the requirements for a 30-minute cavity fire barrier as outlined in Approved Document B. It also complies with the robust details for sound transmission under Approved Document E. Being water repellent and maintenance free, this component integrates effectively with other insulation products to meet current building regulations. The 120mm x 100mm x 1200mm size provides a 60-minute fire integrity rating and a 30-minute insulation rating under BS EN 1366 testing.
- Friction-fitted design requires no mechanical fixings for installation.
- Mineral wool core achieves a Euroclass A1 fire classification for safety.
- Enclosed in a green polythene sleeve to provide water resistance.
- Provides 60 minutes of fire integrity and 30 minutes of fire insulation.
- Designed to suit cavity widths between 80mm and 110mm effectively.
| Brand | Concept Conversions |
|---|---|
| Width | 100 mm |
| Acoustic | Yes |
| Applicable Standards | BS 476, BS EN 1366 |
| Fire Rating | Euroclass A1 |
| Fire Resistant | Yes |
| Length | 1200 mm |
| Moisture Resistant | Yes |
| Sold Per | Length |
| Suitable For | 80mm to 110mm cavities |
| Colour | Green |
| Depth | 120 mm |
| Fire Insulation | 30 minutes |
| Fire Integrity | 60 minutes |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
The Concept Conversions Masonry Stop Sock is a flexible mineral wool slab fully enclosed in a polythene sleeve. This 120mm x 100mm x 1200mm variant is designed to restrict fire penetration and reduce sound transmission through masonry cavity walls. It serves as a combined fire, thermal, and acoustic barrier, suitable for cavities measuring between 80mm and 110mm in width.
These Cavity Barriers are supplied 10mm to 15mm thicker than the target cavity to ensure a secure friction fit without the need for mechanical fixings. During vertical installation, the barrier is compressed between the inner blockwork and outer brickwork as the wall is built up. For horizontal applications, the brick and blockwork are raised to the required level, and the barrier is friction-fitted once the mortar has set. Lengths must be tightly butt-jointed to maintain the integrity of the barrier, ensuring no gaps are left.
The mineral wool core achieves a Euroclass A1 fire classification under BS EN 13501-1, and the barrier exceeds the requirements for a 30-minute cavity fire barrier as outlined in Approved Document B. It also complies with the robust details for sound transmission under Approved Document E. Being water repellent and maintenance free, this component integrates effectively with other insulation products to meet current building regulations. The 120mm x 100mm x 1200mm size provides a 60-minute fire integrity rating and a 30-minute insulation rating under BS EN 1366 testing.
- Friction-fitted design requires no mechanical fixings for installation.
- Mineral wool core achieves a Euroclass A1 fire classification for safety.
- Enclosed in a green polythene sleeve to provide water resistance.
- Provides 60 minutes of fire integrity and 30 minutes of fire insulation.
- Designed to suit cavity widths between 80mm and 110mm effectively.
| Brand | Concept Conversions |
|---|---|
| Width | 100 mm |
| Acoustic | Yes |
| Applicable Standards | BS 476, BS EN 1366 |
| Fire Rating | Euroclass A1 |
| Fire Resistant | Yes |
| Length | 1200 mm |
| Moisture Resistant | Yes |
| Sold Per | Length |
| Suitable For | 80mm to 110mm cavities |
| Colour | Green |
| Depth | 120 mm |
| Fire Insulation | 30 minutes |
| Fire Integrity | 60 minutes |
- Delivery cost will be calculated at checkout once delivery address has been confirmed
- Delivery lead times are an estimate only
- Delivery drivers will always prioritise safety over convenience when offloading materials
- Bagged products such as cement and plaster cannot be returned once opened
- Jumbo bags cannot be returned once delivered
- All other goods may be returned within 3 months with a proof of purchase provided
- Chargeable pallets may be returned for a full refund
- All online pricing is specific to Northern Ireland only. Pricing for our Isle of Man branch may vary.
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Available for click & collect from
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