£59.99
In stock
9976 in stock
Improve the performance and ventilation of your roofing system with 3H Perforated Sand Underlay Roofing Felt, a high-quality ventilated roofing membrane designed for use as the underlay layer within a 2-layer flat roofing system. Manufactured with a durable glass fibre mineral construction, this sand-backed underlay provides reliable support, strength and long-lasting performance beneath the final roofing layer.
Featuring a perforated design, this roofing underlay allows improved ventilation within the roof structure, helping to manage moisture and support the overall performance and longevity of the roofing system. The sand-backed surface provides excellent compatibility with installation methods including torching on and pour and roll applications.
Supplied in a 20m x 1m roll, this charcoal mineral underlay is suitable for professional roofing applications where a dependable and breathable base layer is required.
Product: 3H Perforated Sand Underlay Roofing Felt
Roll Size: 20m x 1m
Weight: 36kg per roll
Construction: Glass Fibre Mineral
Backing: Sand-backed
Colour: Charcoal
Installation Method: Torch-on / Pour and Roll
Application: Underlay in a 2+ layer roofing system
Life Expectancy: 10+ years when installed as part of a 2-layer system
The 3H Perforated Sand Underlay is ideal for use in:
For the best results:
The 3H Perforated Sand Underlay Roofing Felt provides a reliable foundation layer for flat roofing systems, combining glass fibre reinforcement, ventilation performance and installation versatility. Designed to work beneath a compatible cap sheet, it helps create a durable roofing system with a life expectancy of 10 years or more when correctly installed as part of a 2-layer application.
Ideal for roofing contractors and professional installers, this ventilated underlay offers a practical solution for creating strong, efficient and long-lasting flat roofs.
Thank you for visiting and shopping at www.feltproducts.co.uk. Following are the terms and conditions that constitute our Shipping Policy.
We only deliver to mainland UK excluding the Scottish Isles. All other areas, please call for pricing.
All orders are processed within 2-3 business days. Orders are not shipped or delivered on weekends or public holidays.
If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.
Shipping charges for your order will be calculated and displayed at checkout.
| Shipment method | Estimated delivery time | Shipment cost |
| Standard | 3-5 business days | As specified at checkout |
Delivery delays can occasionally occur.
You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours.
Felt Products Northern Ltd is not responsible for any customs and taxes applied to your order. All fees imposed during or after shipping are the responsibility of the customer (tariffs, taxes, etc.).
Felt Products Northern Ltd is not liable for any products damaged or lost during shipping. If you received your order damaged, please contact the shipment carrier to file a claim.
Please save all packaging materials and damaged goods before filing a claim.
We currently do not ship outside the UK.
Our Return & Refund Policy provides detailed information about options and procedures for returning your order.
