Menu
Menu
Your Cart
Cart0 item(s) - £0.00 0

  • Your shopping cart is empty!

Call Back Contact
Compare 0
Insulated Render Systems

115mm Celotex Thermaclass Cavity Wall 21 - Rigid PIR Full Fill Cavity Insulation Board (pack of 5)

115mm Celotex Thermaclass Cavity Wall 21 - Rigid PIR Full Fill Cavity Insulation Board (pack of 5)
Guide Price
115mm Celotex Thermaclass Cavity Wall 21 - Rigid PIR Full Fill Cavity Insulation Board (pack of 5)
Guide Price: £106.25 (£127.50 inc VAT)
Price per m2: £39.35/m2 (£47.22 inc VAT)
  • Product Code: A1-4776
  • Delivery Time: up to 7 days
  • Brand: Celotex
    • (Tech. support: 01473820850)
  • Model and Size: 1190x450mm - 2.7m2
  • Weight: 9.59kg
Our ratings on 27-05-2025:
Google My Business Reviews
4.8 out of 5
Get Best Price
Ask question about this product. For price use 'Add to Quote' button. Checkout
Add to Quote
Compare View quote list
Show other thicknesses

115mm Celotex Thermaclass Cavity Wall 21 - Rigid PIR Full Fill Cavity Insulation Board (pack of 5)

Width: 450mm
Length: 1190mm
Pack Coverage: 2.7m2
Pack Quantity: 5
Weight/m2: 3.55kg
Weight: 9.59kg
Thermal Conductivity: 0.021W/mK
R-Value: 5.45m2K/W
Fire Rating (Reaction to Fire): E

115mm Celotex Thermaclass Cavity Wall 21 is a high performance rigid PIR full fill cavity insulation board with low emissivity foil facings offering enhanced thermal performance (0.021 W/m.K) within cavity air spaces. It can be installed with up to a 10mm residual cavity or as a full fill solution with no residual cavity. Celotex Thermaclass Cavity Wall 21 is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global warming potential (GWP).

APPLICATION

  • Full fill cavity insulation,
  • Can be installed with up to a 10mm residual cavity

CHARACTERISTICS
  • Excellent thermal performance, 
  • Lightweight and easy to install,
  • Tongue and groove for easy installation,
  • The boards are sized to fit standard cavity wall tie spacing,
  • Can be used up to 18 metres height (England and Wales),
  • Includes low emissivity foil facings giving improved thermal insulation performance within cavity air spaces,
  • Has excellent dimensional stability,
  • Provides reliable long term energy savings for buildings.
CERTIFICATION
  • BBA certified, 
  • Euroclass E Reaction to Fire classification, according to BS EN 13501-1,
  • Manufactured under Environmental Management System ISO 14001:2015,
67.5mm Celotex PL4055 - 55mm PIR Insulation Bonded to 12.5mm Plasterboard (PL4000) 67.5mm Celotex PL4055 - 55mm PIR Insulation Bonded to 12.5mm Plasterboard (PL4000)
Brand: Celotex Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1 - 5 working days
67.5mm Celotex PL4055 - 55mm PIR Insulation Bonded to 12.5mm Plasterboard (PL4000)
67.5mm Celotex PL4055 is a high-performance thermal insulation board where the PIR insulation is bonded to 12.5mm tapered edge plasterboard. It is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global warming..
Get Best Price
Add to Quote Compare this Product
40mm Celotex FR5000 Fire Resistant PIR Insulation Board (pack of 10)
Brand: Celotex Model and Size: 1200x2400mm - 28.80m2
Delivery Time: Out Of Stock
40mm Celotex FR5000 Fire Resistant PIR Insulation Board (pack of 10)
Celotex FR5040 is one of the available dimensions of the Celotex FR5000 PIR insulation boards made from polyisocyanurate rigid core and faced on both side with low emissivity aluminum foils for improved thermal performance. The product is applicable to different types of constructions incl..
Get Best Price
Add to Quote Compare this Product
55mm Celotex CW4000 Rigid PIR Cavity Insulation Board (pack of 9)
Brand: Celotex Model and Size: 1200 x 450mm - 4.86m2 55mm
Delivery Time: 1 - 5 working days
55mm Celotex CW4000 Rigid PIR Cavity Insulation Board (pack of 9)
55mm Celotex CW4000 is an insulation board aimed specifically at partial fill cavity wall applications. It comprises a polyisocyanurate rigid foam insulation core, with a thermal conductivity of 0.022 W/mK and low emissivity aluminium foil facings on both sides. CW4000 is manufactured from rigid pol..
Get Best Price
Add to Quote Compare this Product
150mm Celotex EL3000 Flat Roof Board (pack of 3)
Brand: Celotex Model and Size: EL3000 1200x600 - 2.16m2
Delivery Time: 3 - 5 days
150mm Celotex EL3000 Flat Roof Board (pack of 3)
Celotex EL3000 provides a quick and easy method of achieving effective thermal insulation in flat roofing structures. With coated glass tissue facings, EL3000 is manufactured from rigid Polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and a l..
Get Best Price
Add to Quote Compare this Product
100mm Celotex EL3000 Flat Roof Board (pack of 5)
Brand: Celotex Model and Size: EL3000 1200x600 - 3.60m2
Delivery Time: 3 - 5 days
100mm Celotex EL3000 Flat Roof Board (pack of 5)
Celotex EL3000 provides a quick and easy method of achieving effective thermal insulation in flat roofing structures. With coated glass tissue facings, EL3000 is manufactured from rigid Polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and a l..
Get Best Price
Add to Quote Compare this Product
120mm Celotex TC3000 Flat Roof Board - Torch on (pack of 4)
Brand: Celotex Model and Size: 1200 x 600 - 2.88m2
Delivery Time: 3 - 5 days
120mm Celotex TC3000 Flat Roof Board - Torch on (pack of 4)
120mm Celotex TC3000 Flat Roof Board - Torch on (pack of 4)Size: 1200mm x 600mmArea per pack: 2.88m2Thermal conductivity: 0.025 W/MkR-Value: 4.80m2K/WCompressive strength: 150kPaWeight: 4.64kg/m2 Celotex TC3000 provides a quick and easy method of achieving effective thermal insul..
Get Best Price
Add to Quote Compare this Product
This product is listed in the following categories and systems (click to show).