British Gypsum
Gyproc ThermaLine Basic Insulation 1.2m x 2.4m (All Sizes)
Gyproc ThermaLine Basic Insulation 1.2m x 2.4m (All Sizes)
SKU:therbas22
Est Delivery between 6th Feb and
12th Feb.
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
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- Shipping protection for peace of mind
- Fast processing and delivery
- Flexible delivery options


Product Information
Upgrade your insulation game with Gyproc ThermaLine Basic, a top-notch thermal wall insulation solution that blends the efficiency of Gyproc WallBoard with bonded polystyrene foam. This innovative combo boasts a closed shell structure, ensuring a stable R-value that reduces heat loss significantly—almost three times more effective than standard products. Lightweight and easy to handle, Gyproc ThermaLine Basic offers a smooth finish with tapered edges, making installation a breeze. Noteworthy for its high-quality moisture resistance, this insulation board is perfect for regulating heat flow and lowering heating bills. Thanks to its polystyrene and ivory WallBoard composition, it excels in resisting freezing temperatures and remains impervious to bacteria and fungi growth. Sustainable and eco-friendly, Gyproc ThermaLine Basic adheres to national B1 standards for Fireproof Performance, holding BES 6001 certification with an 'Excellent' rating.
Key Features
- Thermal wall insulation
- Closed shell structure
- Stable R-value
- Easy to handle and install
- Moisture-resistant: Yes
- Cost-effective
- High resistance to heat flow
- Water absorbability
- Non-combustible gypsum core
Specifications
- Brand: British Gypsum
- Coverage: 2.88m2
- Length: 2400mm
- Thermal conductivity: 0.038 W/mK, 0.040 W/mK
- Thickness: 22mm,30mm,40mm
- Width: 1200mm
- Board Size: 2400 x 1200 mm
- Density: 12kg/m3
Storage
Store in a cool and dry place. Do not make a pile while storing. Keep clear off the ground.
Certifications
Gyproc ThermaLine Basic adheres to national B1 standards regarding Fireproof Performance and is certified to BES 6001, achieving a rating of 'Excellent'.
Frequently Asked Questions
What is Gyproc ThermaLine Basic Insulation? Gyproc ThermaLine Basic Insulation is a premium thermal wall insulation solution that combines Gyproc WallBoard with bonded polystyrene foam, providing excellent heat regulation for buildings.
How does it reduce heat loss? The closed shell structure of Gyproc ThermaLine Basic Insulation ensures a stable R-value, reducing heat loss by almost three times compared to standard products.
Is it easy to handle and install? Yes, Gyproc ThermaLine Basic is lightweight, easy to handle, and can be cut using a plasterboard saw, making installation a convenient process.
What are the dimensions and thickness options available? The insulation board comes in a size of 1.2m x 2.4m, with thickness options of 22mm, 30mm, and 40mm.
Does it provide a smooth finish? Gyproc ThermaLine Basic features tapered edges, ensuring a smooth and crack-free finish once installed.
Is it moisture-resistant? Yes, Gyproc ThermaLine Basic has high-quality moisture resistance, making it suitable for various environments.
Can it withstand freezing temperatures? Thanks to its polystyrene and ivory WallBoard composition, Gyproc ThermaLine Basic has excellent resistance to freezing temperatures without being easily damaged.
Is it suitable for damp or humid areas? While it has high moisture resistance, Gyproc ThermaLine Basic is not suitable for perpetually damp or humid areas.
What certifications does it have? Gyproc ThermaLine Basic adheres to national B1 standards for Fireproof Performance and is certified to BES 6001, achieving an 'Excellent' rating.
Is it eco-friendly? Yes, Gyproc ThermaLine Basic is a sustainable alternative, free from harmful gases like CFCs and HCFCs, with no Ozone Depletion Potential (ODP) and low Global Warming Potential.
Technical Specifications
Brand | British Gypsum |
Coverage | 2.88m2 |
Length | 2400mm |
Thermal conductivity | 0.038 W/mK, 0.040 W/mK |
Thickness | 22mm,30mm,40mm |
Width | 1200mm |
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
Why Choose Us?
Factors |
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Other Stores |
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Customer service | Easy to reach, and eager to help | Difficult to contact |
Shipping speed | Fast and organised | Unpredictable |
Competitive pricing | Price match guarantee | What you see is what you get |
Loyalty program | Points + exclusive deals | Basic discounts |
Expert advice | Free 1-on-1 sessions | Self-service only |
Trade accounts | Bespoke pricing, trade credit, and dedicated account manager | none available |