Lightweight and durable, Wern woods roofing underlay is perfect for warm or cold roof construction. It offers excellent nail-tear and tensile strength, and helps prevent roof-space condensation. Designed for unrestricted use in windy areas, this 100% waterproof membrane is easily marked with a chalk line. As a secondary line of defence against wind-driven rain and snow, This is a reliable choice for UK and Ireland roofs, with a 345mm batten gauge. It is also UV and heat-resistant, making it suitable for all weather conditions.
Estimate shipping
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
<div class="dynamic-checkout__content" id="dynamic-checkout-cart" data-shopify="dynamic-checkout-cart"> <shopify-accelerated-checkout-cart wallet-configs="[{"name":"shop_pay","wallet_params":{"shopId":77370687812,"merchantName":"Wern-wood"}},{"name":"paypal","wallet_params":{"shopId":77370687812,"countryCode":"GB","merchantName":"Wern-wood","phoneRequired":true,"companyRequired":false,"shippingType":"shipping","shopifyPaymentsEnabled":true,"hasManagedSellingPlanState":null,"requiresBillingAgreement":false,"merchantId":"7RMN3B274E37L","sdkUrl":"https://www.paypal.com/sdk/js?components=buttons\u0026commit=false\u0026currency=GBP\u0026locale=en_US\u0026client-id=AfUEYT7nO4BwZQERn9Vym5TbHAG08ptiKa9gm8OARBYgoqiAJIjllRjeIMI4g294KAH1JdTnkzubt1fr\u0026merchant-id=7RMN3B274E37L\u0026intent=authorize"}}]" access-token="f568f9e895a74f24012acd36c4f72c75" buyer-country="GB" buyer-locale="en" buyer-currency="GBP" shop-id="77370687812" cart-id="ab626a76d8139ec63ef0b3302b3cc6a7" > <div class="wallet-button-wrapper"> <ul class='wallet-cart-grid wallet-cart-grid--skeleton' role="list" data-shopify-buttoncontainer="true"> <li data-testid='grid-cell' class='wallet-cart-button-container'><div class='wallet-cart-button wallet-cart-button__skeleton' role='button' disabled aria-hidden='true'> </div></li><li data-testid='grid-cell' class='wallet-cart-button-container'><div class='wallet-cart-button wallet-cart-button__skeleton' role='button' disabled aria-hidden='true'> </div></li> </ul> </div> </shopify-accelerated-checkout-cart> <small id="shopify-buyer-consent" class="hidden" aria-hidden="true"> One or more of the items in your cart is a recurring or deferred purchase. By continuing, I agree to the <span id="shopify-subscription-policy-button">cancellation policy</span> and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. </small> </div>
Free local delivery on orders over £350
Enjoy complimentary delivery on all orders exceeding £350 local to our site.
Regular Sales and Discounts
Enjoy exclusive deals and seasonal promotions, with discounts of up to 50% on selected items.
Top-notch support
Our knowledgeable team is always ready to assist with expert advice and friendly service to help you find the right materials for your project.
Finance Options Available
Take advantage of flexible payment plans through PayPal Credit or Klarna at checkout, allowing you to build now and pay later.
Our stores
Our Site
Wharf Road, Briton Ferry, Neath Wales, United Kingdom,
