£39.99
In stock
9575 in stock
The 1F Reinforced Slaters Felt – Bat-Friendly Underlay (15m x 1m) is a premium traditional Type 1F bitumen roofing felt designed for use beneath slate and tile roof coverings on ventilated pitched roof systems. Trusted by roofers and builders across the UK for decades, this hessian-backed reinforced underlay provides a durable secondary waterproof barrier that helps protect your roof structure from wind-driven rain, snow, and moisture.
Manufactured in the UK to a proven specification, this roofing felt is also certified bat-friendly, making it suitable for properties where bats are present or may be roosting. This is particularly important for renovation, conservation, and re-roofing projects where compliance with wildlife legislation is essential.
The 1F Reinforced Slaters Felt is installed beneath slates or roof tiles to create a dependable secondary waterproofing layer. Should rain, snow, or moisture penetrate the primary roof covering, the underlay helps prevent water from reaching the roof structure, protecting timber, insulation, and internal roof components.
Its reinforced hessian backing improves durability during installation and provides excellent resistance to tearing, making it well suited to demanding roofing applications.
Unlike some modern roofing membranes, this Type 1F reinforced felt is certified as bat-friendly, making it suitable for use where bats are known or suspected to be present.
Using an approved bat-friendly underlay can help support compliance with UK wildlife regulations and is often required for:
This underlay is intended for use as a secondary waterproof membrane beneath roof slates or tiles on ventilated pitched roof systems. For optimum performance, it should be installed in accordance with Eaves Plus ventilation systems and current UK roofing best practices.
Perfect for:
Choose the 1F Reinforced Slaters Felt – Bat-Friendly Underlay for a trusted, traditional roofing solution that combines proven weather protection, reinforced durability, and compliance with modern conservation requirements.
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.
