Irish Felt, Ship’s Felt, Barge Felt


Irish Felt is a traditional material to lay between layers of planking, particularly used in double cross-planked bottoms. It is also used under copper sheathing, or underlay for canvas decks and canvas coach roofs. 32″ wide and sold here by the linear foot.  If you require a large quantity, inquire for bulk discount.


Irish Flax Felt, commonly known as Irish Felt or Ship’s Felt, it is a product that was originally made in Belfast, Ireland. It is composed of jute or flax felt that is asphalt or bitumen saturated. In the marine industry where it is known as “ship’s felt” it is used in many ways. It is a traditional material to lay between layers of planking, particularly used in double cross-planked bottoms. It is also used under copper bottom sheathing. Some boatbuilders have used it between the worm shoe and keel or similarly between other large structural wood elements. It also is used by some mariners as underlayment for canvas used in canvas decks or canvas cabintops. Because of the way it is made and its flexibility, in the roofing industry it is a great product in tie in between old and new roofs and around drains. It has been used for shower pans and to waterproof around protrusions in a roof that might be the attachment point for a sign (or a drain, masonry wall, deck flashing, etc).

This particular black sheathing is made from very long jute fibers and bitumen. These unique longer jute fibers exhibit superior tensile strength and conformity to odd shapes. Use as Ship’s Felt or use as an underlayment with hot asphalt to flash around scuppers, vents, drains, masonry walls, shower pans and all deck flashings. Great for adjoining new and old roof surfaces together. 32″ wide and up to 82′ long. Purchase by the foot.  Inquire for discount if purchasing in quantity.  Product weighs .27 lbs/linear foot. Actual shipping will be determined and an invoice sent for payment, shipping costs included with this product are estimated.

Ready to ship in 1-3 business days from United States (US)


Shipping Policy

ACTUAL SHIPPING should be charged. For most orders, you will be charged actual Shipping/Handling (S/H) at the time your product ships. Read the text of the detailed description of the product for additional shipping details for that product. If the product says either "free shipping" or "free shipping and handling" in the description itself, you can expect it to be free S/H. Otherwise not. On special order or larger products, we will send you a shipping quote (if we expect actual shipping and handling to be greater than $20 we do this) and if you are not happy with the S/H quote, we will cancel your order.

* For Davey & Co Bronze products, there is a flat $10.00 S/H charge if order is under $100 -- but this is waived on brand orders over $100 so S/H on Davey & Co is free if over $100. For Weems & Plath, Fynspray, and Sunbrella products including special orders, shipping is free if brand order total is over $300. Some of these brand products will state "free shipping" or include a non-zero USA shipping cost in the product shipping tab, otherwise the actual shipping charges apply and you will receive a final shipping invoice to approve before your product ships to you. If you are not happy with the shipping quote that we provide you in these cases, you can cancel your order, no problems.
*** For ATN products, you will be contacted with an invoice for actual shipping and information about delivery timeframe. ATN uses UPS shipping for domestic USA and US Postal Airmail for International and products ship from Florida. If you are not happy with the shipping quote, you can cancel your order, no problems.
Unless otherwise stated on the product itself, all Best Seller items ship with the quoted shipping rates to locations inside the continental United States. We can ship internationally but we must charge actual shipping and handling rates. If your order is shipping to an international destination or states of AK, HI, after you place your order, we will contact you by e-mail with a quotation for any extra shipping and handling charges. If you wish to continue with the order, we will send you an electronic invoice by e-mail and once it is paid, we will ship your order. If you prefer not to proceed with the order, we will refund your order in full immediately.


Refund Policy

If you are not happy, then neither are we. Best Seller will accept returns and give a refund on any stock items you are not happy with, within 1 week of a delivered item, but you will have to pay for the item to be shipped back to origin. If there is a quality/defect problem with a special order, we will work with the manufacturer to reach satisfaction.

If any items are damaged during delivery, please keep the packaging and take photographs and notify us via this site the SAME DAY you receive the item so we may immediately deal with the carrier.

Additional information

Weight.27 lbs
Dimensions12 × 32 × .25 in


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Vendor Information

  • Store Name: Best Seller
  • Vendor: Best Seller
  • Address: Lewes, Delaware 19958 USA
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