Menu
Menu
Your Cart

21mm Bore 40mm Thick Rockwool RockLap Pipe Insulation

21mm Bore 40mm Thick Rockwool RockLap Pipe Insulation
21mm Bore 40mm Thick Rockwool RockLap Pipe Insulation
21mm Bore 40mm Thick Rockwool RockLap Pipe Insulation
21mm Bore 40mm Thick Rockwool RockLap Pipe Insulation
21mm Bore 40mm Thick Rockwool RockLap Pipe Insulation
21mm Bore 40mm Thick Rockwool RockLap Pipe Insulation
21mm Bore 40mm Thick Rockwool RockLap Pipe Insulation
  • Product Code: A1-5843
  • Delivery Time: 3 - 4 days
  • Brand: Rockwool
  • (Tech. support: 08712221780)
  • Model and Size: RockLap 21/40mm
Our ratings on 18-07-2025:
Google My Business Reviews
4.8 out of 5
Show other diameters

21mm Bore 40mm Thick Rockwool RockLap Pipe Insulation

Length: 1000mm
Thickness: 40mm
Density: 120kg/m3
Weight/m2: 3kg
Thermal Conductivity: 0.033W/mK
R-Value: 1.2m2K/W
Fire Rating (Reaction to Fire): A1(Non-combustible)
Pipe diameter: 21mm
Service Temperature: up to 250°C

21mm RockLap H&V Pipe Sections are strong lengths of pre-formed insulation with a one piece, factory applied foil facing with integral self-adhesive lap. The integral lap ensures fast and easy installation: just snap the sections onto the pipe, peel off the backing tape and smooth down for a completely sealed joint. Supplied as 1 metre lengths in a number of insulation thicknesses.The Sections are designed for thermal and acoustic insulation of heating, ventilation and air-conditioning pipework operating in the temperature range 0C to 250C.

CHARACTERISTICS

  • Resilient, high performance barrier provided by one-piece, reinforced foil with integral lap,
  • Fast and simple installation reduces costs and time on site,
  • Installation may be carried out in winter conditions,
  • Tape requirement reduced,
  • Are water repellent,
  • Limited combustible product with surface finish also complying to Class 0,
  • A naturally inert and rot-proof material that does not encourage or support the growth of fungi, moulds or bacteria, or offer sustenance to insects or vermin.
  • Once installed RockLap H&V Pipe Sections shouldnt require any maintenance.

CERTIFICATION

  • Rockwool H&V Pipe Sections are CE marked in accordance with BS EN 14303.
  • RockLap H&V Pipe Sections conform to BS 39584, Bonded preformed stone wool pipe sections and can be used to satisfy BS 5422: Method for specifying thermal insulating materials.
  • The product has been authorised for use in LUL surface and sub-surface premises
17mm Bore 25mm Thick Rockwool RockLap Pipe Insulation 17mm Bore 25mm Thick Rockwool RockLap Pipe Insulation
Guide Price
Brand: Rockwool Model and Size: RockLap 17/25mm
Delivery Time: 1 - 2 days
17mm RockLap H&V Pipe Sections are strong lengths of pre-formed insulation with a one piece, factory applied foil facing with integral self-adhesive lap. The integral lap ensures fast and easy installation: just snap the sections onto the pipe, peel off the backing tape and smooth down for a complet..
Guide Price: £7.10
£8.52 inc VAT
Get Best Price
70mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (pack of 8) 70mm Rockwool Flexi Insulation Slab - 1200mm x 600mm (pack of 8)
Guide Price
Brand: Rockwool Model and Size: 1200mm x 600mm - 5.76m2
Delivery Time: 1 - 2 days
70mm Rockwool Flexi Insulation Slab is a unique semi-rigid thermal and acoustic insulation product made from volcanic rock. It has a flexible edge, specifically developed using patented technology for a fast and easy, perfect friction fit between timber and metal frame systems. This flexi-edge ensur..
Guide Price: £54.92
£65.90 inc VAT
Get Best Price
Brand: Rockwool Model and Size: 1200mm x 600mm - 86.4m2 - Free Delivery
Delivery Time: 2 - 3 working days
75mm Rockwool RWA45 is a high quality resin bonded flexible slab for a wide range of thermal, acoustic and fire insulation requirements both within buildings and for industry. They are suitable for many applications including thermal insulation for floors, walls, roofs and boiler rooms. The structur..
£573.66
£688.39 inc VAT
Add to Cart
50mm Rockwool Flexi Insulation Slab 1200 x 400mm (pack of 12)
Guide Price
Brand: Rockwool Model and Size: 1200x400mm - 5.76m2
Delivery Time: 1 - 2 days
50mm x1200mm x 400mm Rockwool Flexi Insulation Slab is a unique semi-rigid thermal and acoustic insulation product made from volcanic rock. It has a flexible edge, specifically developed using patented technology for a fast and easy, perfect friction fit between timber and metal frame syst..
Guide Price: £36.06
£43.27 inc VAT
Get Best Price
85mm Rockwool Hardrock Multi-Fix (Dual Density) Fleece Faced Board (pallet of 15) 85mm Rockwool Hardrock Multi-Fix (Dual Density) Fleece Faced Board (pallet of 15)
Guide Price
Brand: Rockwool Model and Size: 1200mm x 1000mm - 18.00m2
Delivery Time: 8 - 12 weeks
85mm Rockwool Hardrock Multi-Fix (DD) Fleece Faced Board is a high-performance stone wool insulation board, expertly faced with a mineral-coated white fleece. It is compatible with a wide array of adhered and mechanically fixed waterproofing systems, including bitumen, single-ply, EPDM, and liquid m..
Guide Price: £698.87
£838.64 inc VAT
Get Best Price
75mm Rockwool FirePro SP FireStop EN 60 Slab - 1000mm x 1200mm - 60 Minutes Fire Safety 75mm Rockwool FirePro SP FireStop EN 60 Slab - 1000mm x 1200mm - 60 Minutes Fire Safety
Guide Price
Brand: Rockwool Model and Size: 1000mm x 1200mm - 1.2m2
Delivery Time: 2 - 3 working days
75mm Rockwool FirePro SP FireStop EN 60 is a high-performance firestop solution designed to provide exceptional fire resistance in construction applications. This innovative product is made from non-combustible stone wool, which effectively inhibits the spread of fire, smoke, and heat through servic..
Guide Price: £121.50
£145.80 inc VAT
Get Best Price
This product is listed in the following categories and systems (click to show).