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SKU: CEL-1115

115mm Celotex Thermaclass Cavity Wall 21 Full Fill Insulation Board T&G – 1200mm x 450mm (2.68m2/Pack) In Stock

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£125.52
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£150.63 inc. VAT

Availability: 3 Working Days

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The 115mm Celotex Thermaclass Cavity Wall 21 Full Fill Insulation Board is a high-performance polyisocyanurate (PIR) insulation board specifically designed for full fill cavity wall applications. It has a thermal conductivity of 0.021 W/m.K, providing excellent thermal performance. This insulation board can be installed with up to a 10mm residual cavity or as a full fill solution.

Featuring a tongue and groove joint profile, the Thermaclass Cavity Wall 21 insulation board ensures continuous insulation and protection against wind-driven rain. It is lightweight, rigid, and easy to install, making it an ideal choice for cavity wall insulation projects. Additionally, the boards have a low emissivity foil facing on each side, which enhances thermal performance in sealed cavity air spaces.

Specifications

  • High thermal performance polyisocyanurate (PIR) insulation board
  • Thermal conductivity of 0.021 W/m.K
  • Tongue and groove profile minimizes gaps, ensures insulation continuity, and provides protection from wind and rain
  • High-performance low emissivity foil facing
  • Easy to install, lightweight, and rigid
  • Manufactured with an environmentally friendly blowing agent
  • Thickness: 115mm
  • Width: 450mm
  • Length: 1190mm
  • Pieces Per Pack: 5
  • Pack Per Coverage: 2.68m2
  • Weight of 1m2: 3.55kg
  • Weight: 9.59kg
  • R-Value: 5.45m2K/W
  • Fire Rating (Reaction to Fire): E
  • Material Type: Polyisocyanurate

Performance

  • Excellent thermal performance with a thermal conductivity of 0.021 W/m.K, reducing the required insulation thickness
  • Low emissivity foil facing improves thermal performance in sealed cavity air spaces
  • Provides continuous insulation and protection from wind-driven rain

Features and Benefits

  • Excellent thermal performance: Provides effective insulation, reducing heat loss and improving energy efficiency.
  • Easy to install: The insulation boards are lightweight and can be easily cut and fitted into the cavity walls.
  • Lightweight and rigid: The boards are lightweight, making them easy to handle and install, while also being rigid and durable.
  • Tongue and groove joint profile for continuous insulation: The boards have a tongue and groove joint profile, ensuring a tight and continuous insulation layer without any gaps.
  • Low emissivity foil facing for improved thermal performance: The boards are faced with a low emissivity foil, which reflects heat back into the room, further enhancing the thermal performance.
  • BBA certified for use in defined full fill cavity wall applications: The insulation boards are certified by the British Board of Agrément (BBA) for use in specific full fill cavity wall applications, ensuring their quality and suitability for the intended purpose.
  • Reduces condensation: The insulation helps to prevent condensation build-up within the cavity walls, reducing the risk of dampness and mold growth.
  • Improves acoustic insulation: The insulation boards also provide sound insulation, reducing noise transmission through the walls and improving overall acoustic comfort.
  • Fire resistant: The boards have a high fire resistance, contributing to the overall fire safety of the building.
  • Environmentally friendly: The insulation boards are made from recyclable materials and have a low environmental impact, making them a sustainable choice for insulation.

Applications

  • Residential Buildings: This product is widely used in residential buildings for insulation purposes. It helps in maintaining the temperature of the house and reduces the need for heating or cooling appliances.
  • Commercial Buildings: In commercial buildings, it is used to provide insulation to the walls and ceilings. This helps in reducing the energy consumption of the building.
  • Industrial Buildings: In industrial buildings, it is used to insulate the walls and ceilings to maintain a constant temperature. This is especially important in industries where temperature control is crucial.
  • Refurbishment Projects: This product is also used in refurbishment projects where old insulation needs to be replaced with new, more efficient insulation.
  • New Construction: In new construction projects, this product is used to provide insulation to the walls and ceilings. This helps in making the building more energy efficient.
  • Loft Conversions: This product is also used in loft conversions to provide insulation to the roof. This helps in maintaining the temperature of the loft and reduces the need for heating or cooling appliances.

Installation

When installing the 115mm Celotex Thermaclass Cavity Wall 21 Full Fill Insulation Board, ensure compliance with relevant Building Regulations, guidance, and standards. It is important to follow the manufacturer's installation instructions for best results.

Certifications

  • BBA Certified
  • Manufactured under ISO 14001:2015 and ISO 9001:2015
  • In accordance with BS EN 13165

Equivalent/Related Products

  • 90mm Celotex Thermaclass Cavity Wall 21 Full Fill Insulation Board
  • 140mm Celotex Thermaclass Cavity Wall 21 Full Fill Insulation Board

About the Manufacturer

Celotex is a leading manufacturer of high-performance insulation products. With a commitment to sustainability and innovation, Celotex delivers reliable and energy-efficient solutions for a wide range of construction applications.

Returns on Thermaclass

Because of the fragile nature and specialized packaging of Thermaclass products, Celotex maintains a stringent returns policy. If a product is opened or damaged in any way, including moisture penetration, approximately 80% of distributed items cannot be resold. As a result, we must impose a 50% restocking fee, and the customer will be responsible for arranging the return shipment of the products to us. Upon receiving the returned goods, we will assess them for credit approval. If credit is approved, we will pass the credit on to you.


Product Specifications

  • Thickness: 115mm
  • Width: 450mm
  • Length: 1190mm
  • Coverage: 2.68m2
  • Weight of 1m2: 3.55kg
  • Weight: 9.59kg
  • Thermal Conductivity: 0.021W/mK
  • R-Value: 5.45m2K/W
  • Fire Rating (Reaction to Fire): E
  • Material Type: Polyisocyanurate
  • Usage: Cavity
  • Datasheet 4: https://insulation-uk.com/pim-dam-assets/F1778621-AF19-4665-9C19-65E0C7AAA527/PR00062989/Celotex-SDS-Safety-Datasheet.pdf

-Datasheet 1 -Datasheet 2 -Datasheet 3 -Datasheet 4

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Orders between £250 - £500* Ex VAT

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DELIVERY CHARGES & DISPATCH

We offer tiered delivery pricing to keep things clear and transparent. Delivery charges are calculated based on your order total before VAT and will be shown clearly at checkout. We are a TRADE SITE built for larger orders with keen pricing to match.

  1. Orders BELOW £250 ex. VAT (£300 inc. VAT) --- £70 ex. VAT (£84 inc. VAT) delivery charge
  2. Orders FROM £250 to £500 ex. VAT (£300 to £600 inc. VAT) --- £50 ex. VAT (£60 inc. VAT) delivery charge
  3. Orders OVER £500 ex. VAT (£600 inc. VAT) --- Free delivery

if the charge is higher than this or your post code is coastal / hard to get to, it could be out of our delivery zone. Get in touch and we can assist. There are parts of the UK that we don't deliver to and this will be marked at checkout. (N Ireland and Scotish Highlands). If this occurs upon your checkout, please reach out the team and we will see what we can do via a 3rd party supplier.

Standard Dispatch Times

  1. Most items are dispatched within 2 to 5 working days.
  2. Custom or made-to-order products may require additional lead time.
  3. We do not deliver on weekends.

Orders must be placed by 1:00 PM Monday to Thursday to be eligible for next-day dispatch (where applicable). Orders placed after 1:00 PM on Fridays will be processed the following Monday. All products have the availability days marked, so use this as a guide.

PREFERED DELIVERY TIMES*

We offer this service to alleviate confusion for you and reduce communication for us all. It gives us an idea on when you would like the order to be delivered.

It is NOT a garaunteed delivery date. Picking next day WILL NOT get you next day - unless you pay for it.

We understand scheduling of larger materials to your project is important, thus having your preference is very helpful for us. Please note this works in tandem with the availability of the product. We can NOT fulfill any orders before the avability days set on the product, even if the date insert tool allows it.

There may be situations where if specified a preference date is given, we may not always be able to deliver on that date. We WILL do our best to comunicate accurate delivery times via email after the order is placed, so no need to worry.

After you specified a date we will do our best to deliver on that date, you will be notified within 24-48 hours if we can not fill that day but will strive to get a slot as close as possible to that date. We do not deliver on weekends, so all orders specified with weekend delivery will be shifted to the week after.

ON THE DAY & PRODUCT EQUIVALENTS

If you need to reschedule your delivery, let us know as soon as possible. You’ll be notified of any changes via email or phone. We can not change delivery dates if you leave it within 24 hours of confirmed booked date.

Someone must be on-site to sign for and assist with unloading materials. All deliveries are kerbside only. Upon delivery:

  1. Inspect goods before signing.
  2. If goods are damaged or incorrect, refuse delivery and contact us immediately leave goods with the dirver: Call: 02039916406 or Email: sales@londonbuildingsupplies.co.uk

Important: Signing a delivery as “unchecked” means the goods are accepted in good condition.

Responsibility for goods transfers to you upon delivery. We reserve the right to charge a failed delivery fee if access is restricted for the vehicle specified on the order, Redelivery charges are £50 ex vat. Collection charges are £50 ex vat

Every transaction is recorded, and the delivery fees are determined on whether or not the recipient is ready to receive the package. This covers manual or automated offloading of heavy items. Offloading equipment, such as a tail lift or forklift, may be requested; however, there may be an additional fee if the site is difficult to access or we have a parking / access restrictions or the products are of considerable size..

We may be forced to offer an equivalent high-quality substitute product at no extra cost to our customer from time to time give the UK market conditions and stock supply in your area. They will be like for like and be chose by you with the liability on person orders if chosen on the option to accept yes is marked.

RESTRICTED ACCESS

Our suppliers reserve the right to refuse to make a delivery, if you have not informed either us or the supplier of any access restrictions at either the time of placing the order or 24 hours before the delivery.

Restricted access includes, but is not limited to: double yellow lines, a red route, narrow lanes, steep hills, low bridges, or width restricted

At The Time Of Placing The Purchase Or 24 Hours Before Delivery. Delivery Will Be Managed With Below Partners Or 3rd Party Fulfilment.

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115mm Celotex Thermaclass Cavity Wall 21 Full Fill Insulation Board T&G – 1200mm x 450mm (2.68m2/Pack)

Availability: 3 Working Days

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