ARC
Insulated DPC - All Sizes
Insulated DPC - All Sizes
SKU:INSDPC165
Est Delivery between 6th Feb and
12th Feb.

Add £400£480 to your overall order to unlock FREE delivery.
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
ARC Insulated DPC is a thermal cavity closer designed to close the cavity around window and door reveals in conjunction with a return block, fitting between the return block and inner edge of the outer skin of brickwork. The polyethylene foam insulation will help prevent cold bridging and eliminate moisture, mould and staining from around windows and doors, while the DPC is embossed to assist mortar adhesion.
ARC Insulated DPC is easily installed as the brickwork progresses and before the window or door is fitted. The DPC should sit against the inner side of the outer brickwork to prevent moisture pentration. When joining it is recommended to lap the DPC by at least 100mm and to ensure the insulation is tightly butted with no breaks.
The polyethylene DPC used in the manufacture of ARC Insulated DPC conforms to the requirements of BS6515.
The polyethylene foam insulation used in ARC Insulated DPC has a thermal conductivity of 0.039W/mK.
ARC Insulated DPCs are supplied in branded polythene packs which offer protection during transport as well as providing ease of identification on-site.
Key Features:
- Closes cavity around window and door reveals.
- Prevents cold bridging.
- Insulated with Polyethylene foam.
- Use in conjunction with a return block.
- Conforms to BRE guildelines for thermal insulation.
- ARC Insulated DPCs have a Green Guide rating of A+.
Technical Specifications
Brand | ARC |
Fire rating | 4 hr |
Material type | Rockfibre |
Sold per | pack |
Thermal conductivity | 0.039W/mK |
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
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
Learn more on opening a trade account.
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 020-3481-1978 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 |