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80mm Unilin FR/MG Flat Roof Rigid Insulation (pack of 6)

80mm Unilin FR/MG Flat Roof Rigid Insulation (pack of 6)
80mm Unilin FR/MG Flat Roof Rigid Insulation (pack of 6)
80mm Unilin FR/MG Flat Roof Rigid Insulation (pack of 6)
80mm Unilin FR/MG Flat Roof Rigid Insulation (pack of 6)
80mm Unilin FR/MG Flat Roof Rigid Insulation (pack of 6)
80mm Unilin FR/MG Flat Roof Rigid Insulation (pack of 6)
80mm Unilin FR/MG Flat Roof Rigid Insulation (pack of 6)
  • 80mm x 600mm x 1200mm Unilin FR/MG Flat Roof Insulation Board
  • High Performance PIR Insulation Board with mineral coated glass facers
  • For concrete, timber or metal flat roof decks in domestic and non-domestic buildings
  • Used below single ply waterproofing systems and partially bonded built-up felt
  • Can be used as a cheaper alternative to Celotex and Kingspan Therma Roof Insulation
Estimated delivery:
In Stock
£ 129.77
Ex VAT: £ 108.14

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80mm Thin-R FR/MG Unilin Flat Roof PIR Rigid Insulation Board is compatible with adhesively bonded single ply roofing membranes laid on mechanically fixed or adhered boards.

FR/MG Insulation Board for use as a thermal insulation layer and to create or improve falls on limited access concrete, timber or metal flat roof decks in domestic and non-domestic buildings.

Thin-R Unilin FR/MG Flat Roof Insulation is used in conjunction with a vapour control layer and mechanically-fixed or adhesively-bonded roof waterproofing membrane.

Unilin Flat Roof FR/MG boards should be laid over the vapour control layer in a break bonded pattern.

The long edges of the boards should be laid at right angles to the corrugations and all board joints must be fully supported by the deck.

Decks should be dry, and clean of debris, and laid to correct fall.

The boards can be secured using approved mechanical fixings and washers, with boards laid with a break bonded pattern.

Generally with 1200mm x 600mm boards, a minimum of 4 fixings are adequate, located between 50mm and 150mm from all edges, additional fixings may be placed along the centre line.

Additional fixings around the roof perimeter may be required.

Unilin FR/MG can be used as a cheaper alternative to Celotex, EcoTherm, Recticel and Kingspan Therma Roof insulation boards.




Thickness: 80mm

Width: 600mm

Length: 1200mm

Size: 80mm x 600mm x 1200mm

Sheets per pack: 6

Pack Coverage: 4.32m2

Board Coverage: 0.72m2

Profile: Straight Edge

R-Value: 3.33m2K/W

Density (Foam Core): 32kg/m3 

Thermal Conductivity: 0.025W/mK

Compressive Strength: >150 (kPa)


Unilin FR/MG Flat Roof Board Features:

 · High performance Polyisocyanurate (PIR) core.

 · For concrete, timber or metal flat roof decks.

 · For domestic and non-domestic buildings.

 · Can be used as a cheaper alternative to Celotex, EcoTherm, Recticel and Kingspan Therma Roof insulation boards.

 · Easy to handle 1200mm x 600mm boards.

 · High compressive strength of 150kPa.

 · Compatible with adhesively bonded single ply roofing membranes.

 · Faced with a mineral coated glass.

 · Thermal conductivity 0.024 - 0.027 W/mK.

 · BBA certified.


Unilin FR/MG Flat Roof Vapour Control Layer (VCL):

 · A continuous approved vapour control layer should be used below the insulation (Unless over a sealed metal deck system).

 · For mechanically fixed boards, a minimum vapour control layer of a 1000 gauge polythene layer lapped and sealed with double-sided tape should be used below the insulation. 

 · At vertical upstands and penetrations, the VCL should be turned up and sealed to encapsulate the insulation layer prior to the roof finish being completed. 

 · A comprehensive U-value calculation and condensation risk analysis should be carried out for all projects.


Unilin FR/MG Thin-R Certification and Standards:

 · BBA Certification No. 11/4878. 

 · BS EN ISO 9001 Quality Management System.

 · BS EN ISO 14001 Environmental Management System.


*For comprehensive calculations on all deck types, please contact Unilin Technical Support.

*Thermal conductivity is dependent on facings and product thickness.


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet ǀ 

*Special Product - Non returnable cancelable.

Board covarage 4.32 m2
Colour Magnolia
Length 1200mm
Material Polyisocyanurate Rigid Foam
Pack Coverage 4.32m2
Pack Quantity 6 sheets
Profile Straight Edge
R-Value 3.33 m2K/W
Size 80mm x 600mm x 1200mm
Thermal Conductivity 0.025 W/mK
Thickness 80mm
Width 600mm
Coverage 0.72m2
Finish Mineral coated glass facers
Quantity 6 boards
Shipping method Articulated Vehicle ǀ Courier
Applications Concrete, Timber or Metal Flat Roof Decks
BBA Certified Yes (No. 11/4878)
Fixing method Fixings, Washers, Laid, Glued
ETA Notification Yes
Features High Performance Flat Roof Board
Manufacturer Unilin Insulation®

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We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
80mm Unilin FR/MG Flat Roof Rigid Insulation (pack of 6)
80mm Unilin FR/MG Flat Roof Rigid Insulation (pack of 6)
£ 129.77