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Warm Roof Nails

Warm Roof Nails

Warm Roof Nails

Warm Roof Construction

Helical nails are a quick and reliable fixing for use in warm roof applications. Unlike traditional nails, they rotate as they are driven in, inducing a self-tapping action and consequently do not split or bounce timbers. Ancon Staifix products are available from builders merchants and other specialist distributors.

Flat Roofs

Ancon Staifix Super-8 Headed Helical Nail

Ancon Staifix Super-8 headed helical nails fix plywood/insulation composite roof panels to joists.

Click here for more information on the Super-8.

Pitched Roofs

Ancon Staifix-Thor Helical Super-7 Nail

Ancon Staifix-Thor Helical Super-7 helical nails fix counterbattens to rafters, without compressing the layer of insulation in-between. 

Click here for more information on the Super-7 range.

Super-8 Headed Helical Nail for Flat Roofs

Super-8 headed helical nails secure plywood/insulation composite roof decks to timber joists. They are manufactured in three standard lengths which suit panel depths from 85mm to 160mm.

For applications with joist centres of either 400mm or 600mm, nails are typically installed at a minimum density of 6.9 per square metre.

The 18mm diameter head simplifies installation.

European Patents 1307303 & 1710372

Standard lengths
145mm (panel depth 85-110mm)
170mm (panel depth 115-135mm)
195mm (panel depth 140-160mm)

Other lengths are available on request (min. 135mm).

Pack Sizes
Bags of 25
Boxes of 400

Contact us or visit the resources section for more information.

Super-7 Thor-Helical Nail for Pitched Roofs

Super-7 nails fix counterbattens to rafters and install flush to the timber. They are manufactured from stainless steel and are engineered with the precise Thor-Helical patented helix, and so provide maximum corrosion resistance and excellent holding power. The nails can be used in line with NHBC standards.

European Patent No. 1307303

Stocked Lengths

Other lengths are available in increments of 5mm.

Note: We recommend a minimum counter batten thickness of 38mm.

Pack Sizes
160mm - Box of 400
165mm - Box of 200

GB Patent No. 2426949

Super-7 Alignment Tool 

This innovative tool vertically aligns and centres a nail on the counterbatten to rafter arrangement, improving build quality.

Two widths to accomodate 38mm and 50mm counterbattens
Top, with level to ensure correct angle of entry
Support tools rely on the user to gauge the correct angle of entry
The Super-7 Alignment Tool centres, aligns and constrains fixings vertically upon the counterbatten to rafter arrangement

Recommended Super-7 Nail Length and Fixing Centres

This information should be calculated using HeliCalc, a free web-based program which calculates the length, density and quantity of Super-7 nails required for a specific project.

Visit or contact us for more information.

Alternatively, please download the Warm Roof Batten Fixings design sheet below, complete and email back to us. 

Latest News

Leviat Launches New 300mm Type 4 Wall Tie for Wider Cavities

Leading construction accessories manufacturer, Leviat, announces the release of its new Ancon Staifix HRT4 300mm Wall Tie designed for use in wider walls with cavities ranging from 151-175mm. The addition of this product to the existing range will help specifiers and builders to meet the latest Part L regulations and achieve the more stringent U-values and building fabric requirements in the upcoming Future Homes Standard.