Best Roofing Materials — 20mm, Pack of 100 (2026)
1 roofing materials matching size “20mm, Pack of 100”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Roofing Materials UK (2026) guide.
#1 Pick
Clout Nails 20mm (Pack of 100) Extra Large Head Galvanized Shed Roofing Felt Tacks for DIY, Construction, Outdoor Wood Fence and Roof Tiles- Galvanised Steel
- 20mm, Pack of 100
£6.99
Pros
- 20mm length suits slightly thicker felt and light board than standard clouts
- Extra-large heads spread load and resist pull-through in windy conditions
- Galvanised coating gives good long-term corrosion resistance outdoors
Cons
- Longer length is unnecessary for very thin standard shed felt
This bulk pack contains 100 roofing materials, each measuring precisely 20mm in size. Ideal for smaller repairs or supplementing existing roofing projects, this quantity offers significant value for tradespeople and DIY enthusiasts alike. These staples are manufactured to a robust specification suitable for general roofing applications, providing reliable weather protection.
Each individual piece is designed for straightforward installation – simply cut to length and secure using appropriate fixings. While strong, they’re best suited for smaller areas or as temporary solutions until more permanent repairs can be made. Please note that these materials are not intended for large-scale roofing projects demanding specialist performance characteristics.
Supplied in a convenient pack of 100, this provides a good starting point for numerous small jobs. Due to the nature of building materials and potential variations in colour, we recommend purchasing additional supplies if you require a larger area covered or anticipate future repairs. These are sold as individual units – no assembly required.
FAQ
What type of roofing is this suitable for?
These 20mm roofing materials are generally suitable for pitched roofs, particularly smaller sections or areas requiring supplementary cover. They aren’t designed for large areas needing specialist waterproofing performance.
How do I cut these to size?
Using a sharp utility knife or scissors, carefully cut the material to your desired length. Ensure you have a stable surface and make clean cuts to avoid damaging the edges.
What is the colour of these roofing materials?
The colour may vary slightly due to natural variations in the manufacturing process. We recommend purchasing additional quantities to ensure consistent appearance across your project.
Are these weatherproof?
These roofing materials provide a basic level of weather protection against rain and sunlight, but are not designed for extreme conditions or prolonged exposure to harsh elements.
What fixings do I need to use with these?
You’ll need appropriate roofing nails or screws (not included) to secure the materials to your roof. Select fasteners suitable for your specific roofing substrate and weather conditions.
How many pieces are in a pack?
A single pack contains 100 individual roofing materials, each measuring 20mm in size. This provides ample supply for numerous smaller repairs.
Are these suitable for flat roofs?
While they can be used on some flat roof applications, we recommend a specialist flat roofing membrane for optimal performance and weatherproofing against water ingress.
What is the material made of?
These materials are typically manufactured from a durable, weatherproof polymer. Exact composition may vary – check the product packaging for detailed specifications.
Do I need any tools to install these?
You’ll need basic hand tools such as a hammer, utility knife, and measuring tape to complete the installation. Safety glasses are also recommended for eye protection.
What is the minimum order quantity?
This listing offers a pack of 100 – this represents the smallest available quantity. Larger quantities may be available through other listings or direct contact with our customer service team.