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Insulated Fire Sleeves - Intumescent Pipe Thermal Protection

Quick Overview

Standard pipe insulation will not provide an effective fire seal as it will either shrink back, melt (glass wool) or burn (organic foams). It has been standard practice to remove the insulation as the pipe passes through the firestopping material. However, the removal of the insulation can lead to loss of thermal performance on hot water pipes and condensation forming as the vapour barrier is penetrated on chilled water pipes. Insulated Fire Sleeves maintain the thermal performance of metal and plastic pipes whilst providing a fire rated seal in walls and floors.

  • Labour saving
  • Acoustic rating of up to 49dB
  • No over sleeving required
  • Full range of sizes
  • Dry system, no need for additional sealants

Insulated Fire Sleeves are intended for use on copper, mild steel, PVC, uPVC, HDPE, Polybutylene and ABS pipes. Tested in accordance with BS EN:1366-3:2009 and BS 476:Part 20:1987, the sleeves provide up to 2 hours fire protection. Please contact our technical sales office to confirm suitability of use.

Priced per 300mm length

Availability: In stock

Excl. VAT: £25.70 Incl. VAT: £30.84

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Excl. VAT: £25.70 Incl. VAT: £30.84

Details

Description

Insulated Fire Sleeves are a unique combination of mineral fibre and graphite intumescent that provide all the benefits of mineral wool’s thermal, noise and fire properties with an added intumescent effect. The sleeves are supplied in 300mm lengths and can be cut down to requirement when installing in walls and floors.

 

Acoustic

Insulated Fire Sleeves have been tested to provide a Weighted Sound Reduction Index (Rw) of up to 49db. The compressible nature of the material used to manufacture the product can reduce the potential of setting up any structural borne pipe noise.

 

Service Temperatures

Insulated Fire Sleeves are used to firestop pipe work operating at temperatures between 0ºC and 180ºC. At low temperatures, care must be taken to maintain the vapour barrier.

 

Compatibility

Insulated Fire Sleeves are compatible with most materials with which they are likely to come into contact in normal building and industrial applications. Precautions should be taken when insulating austenitic stainless steel, regardless of insulation type.


Installation Instructions

Insulated Fire Sleeves will provide up to 2 hours fire protection in floors and walls when sealing metal and PVC pipes up to 160mm diameter. Historically, pipe insulation has been required to be cut out as it passes through fire seals, as it shrinks, melts or burns. Insulated Fire Sleeves allow the pipe to be completely lagged right through the fire seal without losing any integrity on the seal. Chilled water pipes can have their insulation replaced with the Fire Sleeve and then foil taped to the existing lagging, maintaining the vapour barrier.


Installation in Masonry Walls

Annular gaps up to 40mm wide around metal pipes (Insulated Fire Sleeve 25mm wall thickness + 15mm annular gap)

  1. Remove all loose debris from around wall and metal pipe.
  2. Remove pipe insulation where it passes through the depth of the wall + 25mm on each side of the wall.
  3. Install Insulated Fire Sleeve (25mm wall thickness x depth of wall + 50mm) allowing 10mm protruding from both faces of the wall.
  4. Gun Acoustic Intumescent Sealant into the gap (10mm wide x 15mm depth) between the sleeve and the wall using a mineral wool backer.
  5. For improved acoustic performance, install on both sides of the wall.

Annular gaps up to 40mm wide around plastic pipes (Insulated Fire Sleeve 25mm wall thickness + 15mm annular gap)

  1. Remove all loose debris from around wall and metal pipe.
  2. Remove pipe insulation where it passes through the depth of the seal.
  3. Install Insulated Fire Sleeve (25mm wall thickness x depth of wall +100mm) allowing 50mm protruding from both faces of the wall.
  4. Gun Acoustic Intumescent Sealant into the gap (10mm wide x 15mm depth) between the sleeve and the wall using a mineral wool backer.
  5. For improved acoustic performance, install on both sides of the wall.

Annular gaps exceeding 40mm wide around metal pipes (Insulated Fire Sleeve 25mm wall thickness + >15mm annular gap)

  1. Remove all loose debris from around wall and metal pipe.
  2. Remove pipe insulation where it passes through the depth of the seal.
  3. Install Insulated Fire Sleeve (25mm thick x depth of wall +50mm long), allowing 25mm protruding from the face of the wall.
  4. Cut and friction fit Coated Panel System (50mm thick) between the Insulated Fire Sleeve and the block wall to provide a tight fit, using Acoustic Intumescent Sealant as an adhesive on the cut edges.
  5. Gun Acoustic Intumescent Sealant into the joints and the perimeter of the barrier.
  6. Paint the face of the barrier with Fire rated coating to provide a monolithic barrier.
  7. For improved acoustic performance, install Coated Panels and Insulated Fire Sleeves on both faces of the wall.

Annular gaps exceeding 40mm wide around plastic pipes (Insulated Fire Sleeve 25mm wall thickness + >15mm annular gap)

  1. Remove all loose debris from around wall and metal pipe.
  2. Install Insulated Fire Sleeve (25mm thick x 150mm long) allowing 50mm of the Insulated Fire Sleeve protruding from the face of the coated panel.
  3. Cut and friction fit Coated Panel System (50mm thick) between the Insulated Fire Sleeve metal and the block wall to provide a tight fit, using Acoustic Intumescent Sealant as an adhesive on the cut edges.
  4. Gun Acoustic Intumescent Sealant into the joints and the perimeter of the barrier.
  5. Paint the face of the barrier with Fire rated coating to provide a monolithic barrier.
  6. For improved acoustic performance, install Coated Panels and Insulated Fire Sleeves on both faces of the wall


Installation in Dry Wall

Metal and PVC pipe work in plasterboard walls

Due to the cavity within plasterboard walls, it is generally necessary to frame out service penetrations in large openings when using Coated Panels so that the fire stopping materials do not fall through into the cavity. This is done by forming stud noggins. Alternatively, Coated Panels can be Patrice fixed to both faces of the plasterboard using dry wall screws and steel penny washers.

Annular gaps of up to 35mm wide around metal pipes (25mm wall Insulated Fire Sleeve + 10mm annular gap)

  1. Remove all loose debris from around wall and metal pipe.
  2. Remove pipe insulation through the wall + 25mm each side of the wall.
  3. Install Insulated Fire Sleeve (25mm thick x depth of wall +50mm). Position centrally within partition, with 15mm protruding from both faces of the partition.
  4. Gun Acoustic Intumescent Sealant between the board and the fire sleeve to the depth of the board (e.g. a partition with 2 x 12.5mm thick board you will require a depth of 25mm).
  5. Repeat on other side of partition.

Annular exceeding gaps of 35mm wide around metal pipe (25mm wall Insulated Fire Sleeve + >10mm annular gap)

Method 1

  1. Remove board around penetration.
  2. Cut and fix metal stud noggins between metal studs to frame out pipe. Fix plasterboard over face of noggins to protect from fire.
  3. Remove lagging where it is likely to pass through the fire seal + 50mm each side of wall.
  4. Install Insulated Fire Sleeve (25mm thick x depth of wall +50mm). Position centrally within partition with 25mm of the fire sleeve sticking out on both sides of the wall.
  5. Cut and friction fit Coated Panel System (50mm thick) between the Insulated Fire Sleeve and the framing to provide a tight fit.
  6. Gun Acoustic Intumescent Sealant into the joints and around the perimeter of the barrier.
  7. Paint the faces of the barrier with Ablative Coating to produce a monolithic barrier.
  8. Repeat on other side of wall ensuring that the panels are fitted flush with both faces of the partition.

Method 2

  1. Remove lagging where it is likely to pass through the fire seal + 50mm each side of wall.
  2. Replace with a section of Insulated Fire Sleeve (25mm thick x depth of wall + 200mm).
  3. Foil tape the Insulated Fire Sleeve to the existing insulation to maintain thermal insulation and vapour barrier through the seal.
  4. Gun Acoustic Intumescent Sealant on to the face of the plasterboard in a zone 100mm around the penetration.
  5. Cut a piece of Coated Panel (50mm thick) so that it will overlap the hole by 100mm. (e.g. 100mm x 100mm hole will require a piece of coated panel 300mm x 300mm).
  6. Cut the Coated Panel in half and scribe around the Insulated Fire Sleeve.
  7. Plant the two halves of the coated panel onto the face of the plasterboard, usingAcoustic Intumescent Sealant as an adhesive.
  8. Tool off any excess sealant and fill any joints in the seal and around the perimeter of the seal.
  9. Mechanically fix the Coated Panel in each corner using 75mm dry wall screws and steel penny washers.
  10. Paint the exposed edges of the coated panel with Ablative Coating.

Annular exceeding gaps of 35mm wide around PVC pipe (25mm wall Insulated Fire Sleeve + >10mm annular gap)

Method 1

  1. Remove board around penetration.
  2. Cut and fix metal stud noggins between metal studs to frame out pipe. Fix plasterboard over face of noggins to protect from fire.
  3. Install Insulated Fire Sleeve (25mm thick x depth of wall +100mm). Position centrally within partition with 15mm protruding on both sides of the wall.
  4. Cut and friction fit Coated Panel System (50mm thick) between the Insulated Fire Sleeve and the framing to provide a tight fit.
  5. Gun Acoustic Intumescent Sealant into the joints and around the perimeter of the barrier.
  6. Paint the faces of the barrier with Ablative Coating to produce a monolithic barrier.
  7. Repeat on other side of wall ensuring that the panels are fitted flush with both faces of the partition.

Method 2

  1. Remove lagging where it is likely to pass through the fire seal + 50mm each side of wall.
  2. Replace with a section of Insulated Fire Sleeve (25mm thick x depth of wall + 100mm).
  3. Foil tape the Insulated Fire Sleeve to the existing insulation to maintain thermal insulation and vapour barrier through the seal.
  4. Gun Acoustic Intumescent Sealant on to the face of the plasterboard in a zone 100mm around the penetration.
  5. Cut a piece of Coated Panel (50mm thick) so that it will overlap the hole by 100mm. (e.g. 100mm x 100mm hole will require a piece of coated panel 300mm x 300mm).
  6. Cut the Coated Panel in half and scribe around the Insulated Fire Sleeve.
  7. Plant the two halves of the Coated Panel onto the face of the plasterboard, using Acoustic Intumescent Sealant as an adhesive.
  8. Tool off any excess sealant and fill any joints in the seal and around the perimeter of the seal.
  9. Mechanically fix the Coated Panel in each corner using 75mm dry wall screws and steel penny washers.
  10. Paint the exposed edges of the coated panel with Ablative Coating.

Metal and PVC pipes passing through concrete floors Annular gaps of up to 40mm wide around metal pipe (25mm wall Insulated Fire Sleeve + 15mm annular gap)

  1. Remove all loose debris from around floor and metal pipe.
  2. Remove the pipe insulation where it passes through the depth of the seal.
  3. Install Insulated Fire Sleeve (25mm wall thickness x floor depth + 50mm long) so that the sleeve protrudes 25mm below the soffit.
  4. Gun Acoustic Intumescent Sealant (10mm wide x 15mm depth) using a mineral wool backer between the Insulated Firesleeve and the concrete fllor slab at the top of the floor slab.
  5. For improved acoustic performance, repeat gunning sealant into annular gap between insulated firesleeve and bottom of the concrete floor slab.

Annular gaps of up to 40mm wide around PVC pipe (25mm wall insulated firesleeve + 15mm annular gap)

  1. Remove all loose debris from around floor and metal pipe.
  2. Remove the pipe insulation where it passes through the depth of the seal.
  3. Install Insulated Firesleeve (25mm wall thickness x floor depth + 100mm long), so that the sleeve protrudes 50mm below the soffit.
  4. Gun Acoustic Intumescent Sealant (10mm wide x 15mm depth) using a mineral wool backer between the Insulated Firesleeve and the concrete fllor slab at the top of the floor slab.
  5. For improved acoustic performance, repeat gunning sealant into annular gap between insulated firesleeve and bottom of the concrete floor slab.

Annular gaps of up to 40mm wide around PVC pipe (25mm wall insulated firesleeve + 15mm annular gap)

  1. Remove all loose debris from around floor and metal pipe.
  2. Remove insulation where it passes through the depth of the seal.
  3. Install Insulated Firesleeve (25mm wall thickness x seal depth +50mm long) so that the sleeve protrudes 25mm below the seal.
  4. Shutter the hole cutting Shuttering Panel (50mm thick) between the fire sleeve and the concrete floor.
  5. Mix Firestop Compound with clean water into a trowelling grade and apply over face of shuttering to a depth of 25mm.
  6. Allow to cure for a minimum of 1 hour.
  7. Mix Firestop Compound with clean water into a pouring grade and top up the seal to the overall thickness of 100mm.

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