Mannok
Mannok Cavity Board - All Sizes
Mannok Cavity Board - All Sizes
SKU:qcav50
Est Delivery between 6th Feb and
12th Feb.
The option you have selected may be in short supply. To make an enquiry please call us on 020-3936-2839 or email us at sales@i4lgroup.co.uk.
How much will I need?
We recommend adding 10% of additional product to the calculation to account for errors, damages, and obstacles in your project


Product Information
Mannok is a polyisocyanurate (PIR) insulation board ideally designed to be used in masonry walls with partial fill cavity insulation. These boards are crafted with a core of PIR foam connected on both sides to the composite facings. The built-in gas filled cells in Mannok provides high thermal performance and strength to them within the cavity.
The insulation used within the cavity greatly differs the thermal performance of the masonry walls. Moreover, the lower thermal conductivity of Mannok boards reduces the thickness of insulation required within the cavity to deliver the required thermal performance avoiding the requirement of having a cavity greater than 100mm wide in most cases.
Features:
- These boards does not readily absorb water and hence are suitable for use in damp environments
- Light, robust and easy to handle; it can be worked using a saw or sharp knife
- Durable and will perform for the service life of the building
Specifications:
- Board width x length: 450 mm x 1200 mm
- Board thickness: 50mm
- Board density: (26 - 32) kg/m³
- Area per pack: 4.86m²
- Edge Profiles available: Butt edged/ shiplap/ T&G
- Thermal conductivity*: 0.022 W/mK
- Water vapour resistivity: ≈ 40,000 MNs/gm
- Compressive Strength: > 120 kPa
Durability
Mannok QF boards are supplied in shrink-wrapped packs. Boards should be stored under cover and out of direct sunlight, keeping boards flat.
Also do not knock corners and edges while handling Mannok. Cut Mannok QF with a fine tooth saw or quality trimming knife.
Durability
The Mannok boards are highly durable and perform well for the service life of the buildings.
Technical Specifications
Brand | Mannok |
Length | 1200mm |
Material type | Polyiso |
Thermal conductivity | 0.022 W/mK |
Width | 450mm |
Datasheets
Delivery Information
Est Delivery between 6th Feb and
12th Feb.


Delivery will always take place on a weekday (Mon - Fri excl. public holidays).
An exact delivery charge will be calculated at checkout based on your order and location.
Frequently asked questions
Can you help me pick the right insulation for my project?
Yes, of course!
Our team is ready to assist you with any questions and queries you may have.
Just reach out to us via any of the following methods:
Call us: 020-3582-6399
Email us: sales@i4lgroup.co.uk
or click the Livechat tab at the bottom of your screen.
How do I track my order?
As soon as your order is dispatched, you'll receive a dispatch email with delivery dates and details for your order.
If you require an update on your order, you can email customerservice@i4lgroup.co.uk with your order number for assistance.
Can I order now and pay later?
Yes, we offer a variety of flexible payment options to all our customers.
When checking out online, you'll be able to avail of multiple buy now, pay later options with Klarna or PayPal.
The flexible payment options available to you at checkout will be based on the total value of your order.
For B2B customers, you can apply for a 30-day trade credit account, and you'll also unlock:
- Dedicated trade pricing
- Loyalty points and rewards
- A dedicated account manager
Do you really have the best prices online?
Yes! We even have a price match guarantee.
We are so confident that we have the best prices out there that we will match the price of any other online or local retailer.
If you find the same product cheaper elsewhere, we will match the price — just send us the quote or website link.
Read more: Price Match Guarantee
I have a large-scale project, can I get a quote?
Yes, if you are carrying out a construction project that requires a large quantity of materials, email sales@i4lgroup.co.uk with the following information and we will get back to you with your very own bespoke price quote:
- Delivery postcode and address
- Mobile number
- Company name
- A list of required materials and their quantities
Can I open a trade account?
Yes! Trade customers can open a B2B account to unlock bespoke pricing, B2B discounts, trade credit, loyalty points, and a dedicated personal account manager.
You can learn more here: Open a Trade Account
Can I cancel or amend my order after placing it?
Yes, if your order has not yet been processed for dispatch, cancellation/ amendments should be possible.
Our team works quickly to get your order delivered as soon as possible so it is likely that your order will be processed for dispatch within 2-3 hours of purchase.
Contact us immediately via customerservice@i4lgroup.co.uk or call 020-3582-6399 during opening hours.
If you wish to amend your order after it has been processed by our team, it will be treated as a return or a separate new order.
Read more: Returns
What is your returns policy?
Changed your mind about your order? no problem! we offer a 14 day returns period after your order is delivered.
To avail of this your order must be unused, in its original packaging, and suitable for resale.
Refunds are issued immediately after the goods are received and inspected by our team.
If an item arrives damaged or incorrect, you must notify us within 48 hours of delivery.
Prior approval is needed before returning any goods – do not return without authorization.
Special order items are exempt from returns.
Read more: Returns