It is the ideal solution for those seeking a reliable and effective roofing underlay that facilitates breathing in complex pitched roofs. With its innovative meltblown core, it excels at enhancing natural air movement, ensuring the efficient transport of moisture vapour out of the roofspace.

This ingenious design significantly reduces the risk of condensation, making it a superior choice for sustainable roof management. Furthermore, its compatibility with roofs featuring solar PV adds versatility and modern utility to the sustainable construction and renovation projects, providing a cutting-edge approach to roofing underlays. Boasting a 15-year warranty and a BBA certificate, it is not only a dependable choice but also one that meets and exceeds industry standards. This high-performance underlay ensures water resistance while eliminating the need for air gaps or secondary venting, simplifying installation and maintenance, all while complying with BS5534 wind uplift resistance. Made from durable and lightweight 170GSM material, it covers all bases to deliver a premium roofing solution.

  • Size: 1x50m
  • 170gsm
  • Air & vapour permeable for breathability
  • Highly water resistant roofing underlay
  • No need for air gaps or secondary venting
  • Prevents roofspace condensation effectively
  • Compatible with solar PV roof installations
  • Wind uplift resistance per BS5534 standard
  • 15-year warranty for peace of mind

£4.99 Standard Delivery, or FREE on most orders over £99* (some exclusions apply)

£9.99 Next day delivery is available for orders places before 12 noon. Any orders placed for next day delivery after this time, will take 2 working days to be delivered.

Working/delivery days are Monday to Friday, deliveries will not normally be made Saturday or Sunday.

We offer a 30-day returns policy on on the majority of our items*, as long as the item is unused, undamaged and unopened**. We only ask that the postage is covered by yourself. 


* Please see our delivery page for further details on specific exceptions.

** Some products that are made to order or personalised cannot be returned.

***Exclusions apply for items shipped directly from our suppliers, and some big & bulky items may incur an additional charge. Please see our delivery page for full details. 

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Proctor Group 1x50m 170gsm Air & Vapour Permeable Roofing Underlay

  • $196.17
  • (FREE UK Delivery)
1+ 10+
$196.17 $189.31
Item in Stock   |   Usually dispatched within 24 hours
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Free UK Delivery on most orders over £99
Delivery Rates & Information

Delivery Options

Standard Delivery: £4.99 - Free for all orders over £99.*
Next Day Delivery: £9.99 - Available for orders placed before 12:00 PM (Noon).

Important Delivery Notes

Next Day Delivery Cut-off: Orders placed after 12:00 PM (Noon) using Next Day Delivery will be delivered within two working days.
Working Days: Our standard delivery and shipping days are Monday through Friday. We do not normally deliver on Saturdays or Sundays.

Easy 30-Day Returns

We want you to be happy with your purchase! We offer a 30-day returns policy on all items, provided the following conditions are met:
  • The item is unused and undamaged.
  • The item is returned in its original packaging.
  • The customer is responsible for the return postage costs.

Combining Your Order

We always strive to combine your order into a single delivery. However, your order may arrive in multiple shipments if it contains:
  • Items from different warehouses (Standard items).
  • 'Direct' items (These are shipped separately and directly from the supplier) and will arrive separately from other items in your order.

*Exclusions & Additional Charges

The following items may be excluded from standard shipping rates or may incur extra delivery charges:
  • Items Shipped Directly from Suppliers ('Direct' items).
  • Certain Large or Bulky Items.
Want it by Monday 12th October? Order within 4 hours, 50 minutes