2.8mm x 25mm Big flat head galvanized roofing nails applications

Roofing nails is a special fastener for fixing linoleum coiled material in building waterproof engineering. It is characterized by large cap and thick rod, which can effectively prevent the linoleum from being lifted or torn by the wind. The following is a detailed arrangement of its raw materials, characteristics, packaging and application:

1. Raw materials

Roofing nails mainly uses low carbon steel as the base material, and the common brand is Q195 or Q235 carbon structural steel.

Surface treatment: in order to prevent rust, anti-corrosion treatment must be carried out. Common processes include:
Galvanizing: it is divided into electro-galvanizing (low cost, suitable for dry environment) and hot galvanizing (thick zinc layer, strong corrosion resistance, suitable for coastal or humid environment).
Others: Some products are blackened, painted or mechanically plated.

2. Core features

Wide nail cap: The diameter of the nail cap is usually more than 3 times that of the nail rod (about 9.5mm), which can effectively disperse the pressure, prevent the linoleum from being torn, and form a good waterproof seal.
Rust-proof and durable: High-quality products (especially hot dip galvanizing) must pass the salt spray test for 72-96 hours to ensure the same life as the building.
Strong grip: the nail rod can be divided into polished rod and ring pattern. The ring nail rod can form a mechanical bite with the base, and the pull-out resistance is increased by more than 30% compared with that of the bare rod, which is suitable for sloping roofs.

3. Key specification parameters

The specifications of roofing nails are usually marked with “diameter× length”:

Specification (diameter× length) Typical diameter is suitable for tensile/bending requirements of the scene.
2.8×25mm 2.8mm thin linoleum tile fixing-
3.2×40mm 3.2mm standard coiled material is fixed with wooden base-
3.8×50mm 3.8mm thick coiled material or concrete base-
The bending strength of 3.05×50.8mm 3.05mm conventional waterproofing membrane (conforming to the national standard) is ≥588MPa.

4. Packaging form

Packaging is mainly divided into two categories according to construction methods:

Bulk/boxed: suitable for hand hammering. Common specifications are 25 kg/carton or 2.5 kg/bag (commonly used in DIY) and 1 kg/box in small packages.
Nail rolling: it is connected into a roll by gluing or paper tape, specially adapted to pneumatic nail rolling gun, which can realize mechanized rapid construction. Each roll usually contains 250-400 nails.

5. Application scenarios and construction specifications

Main applications:
Roof waterproofing: fixed asphalt linoleum tile and SBS/APP modified asphalt coiled material.
Other parts: the waterproof layer of the sun room roof, light steel structure roof and wooden shed is fixed.
Key points of construction:
Dosage reference: each linoleum tile usually needs to be fixed with 4-6 nails; Coil lap place every 300mm layout.
Nailing requirements: the nail cap should be flush with the surface of linoleum (it is forbidden to sag too deeply or protrude outwards), and the nail tip should penetrate the waterproof layer and penetrate into the base (wood or concrete) for at least 15mm.
Tool matching: use claw hammer manually; It is recommended to adjust the air pressure to 0.5-0.8Mpa for mechanical construction.

Summary: When choosing roofing nails, please be sure to look for hot dip galvanizing treatment outdoors or in humid environment; If it is a large-scale roof construction, the efficiency can be significantly improved by using rolled nails and pneumatic guns.

Clout nails packing details: 

For meeting the needs of different customers, we can pack nails according to clients’ requirements.

1. 1lb/box 50lb/carton;

2. 0.5kg/plastic bag 25kg/carton;

3. 1.0kg/plastic bag 25kg/carton;

4. 5kg/box 20kg/carton;

5. 25kg bulk per carton with pallet or not.