Copper slate straps for securing slates and shingles to roof timbers. Supplied in a TIMbag of 100, these 150 x 13mm straps offer reliable, long-lasting rust resistance in exposed roofing conditions.
Copper slate straps are the go-to fixing when you need to secure slates or shingles without the worry of rust staining running down a roof face after the first winter. These 150 x 13mm straps are made from copper, which means they are naturally resistant to corrosion in wet, exposed conditions — the kind of conditions a roof sees every single day in the UK. If you have ever had to go back and replace corroded fixings on a slate roof, you will appreciate why copper is worth using from the start.
At 150mm in length with a 13mm width, these straps suit a wide range of standard slate and shingle applications. The dimensions give you enough fixing length to wrap and secure properly without being unwieldy to handle on a pitched roof. Each TIMbag contains 100 straps, so a job is not going to leave you short mid-course, which is always a relief when you are up a ladder.
Where Copper Slate Straps Fit Into Roofing Work
These straps are used wherever slates or shingles need to be anchored individually to the roof structure. On older properties with irregular slate sizes, or where nailing through the slate is not appropriate, strapping provides a secure mechanical fix that holds the slate in place without risk of cracking. Heritage and conservation work in particular tends to specify copper fixings because they are sympathetic to traditional materials and will not leave ugly rust marks on natural stone slates.
They are equally well suited to new builds and re-roofing projects where longevity is the priority. Copper does not need treating or coating to perform outdoors — it simply weathers gracefully and carries on doing the job. There is something almost satisfying about a fixing that requires absolutely no maintenance attention whatsoever.
Supplied as copper slate straps in a convenient TIMbag of 100, these are a sensible stock item for any roofer working with natural slate or timber shingles on a regular basis.
Pro Tip: When fixing slates in a high-wind zone, bend the copper strap tightly around the slate tail and nail through both the strap and the batten rather than just wrapping — it takes seconds longer but makes a measurable difference to wind uplift resistance.
Copper slate straps are used by roofers on pitched roofs where individual slates or timber shingles need to be mechanically fixed without nailing directly through the slate face. They are commonly specified on heritage, restoration and conservation projects where non-ferrous fixings are required to prevent staining and to meet material compatibility requirements. New build roofing work using natural slate also benefits from copper straps where long service life is a priority and re-roofing on older domestic properties is a typical everyday use.
Best For
Securing natural slates
Fixing timber shingles
Heritage and conservation roofing
Re-roofing projects
High-exposure pitched roofs
Key Properties
Copper construction for natural rust resistance
No coating or treatment required
Suitable for long-term outdoor exposure
Compatible with natural slate and timber shingles
Non-staining on natural stone surfaces
Key Specifications
Size: 150 x 13mm
Material: Copper
Pack quantity: 100 per TIMbag
SKU: CSS150B
Not suitable for: Not intended for use with concrete or fibre cement tiles where purpose-made tile clips or nails are the appropriate fixing. Not suitable as a structural fixing in applications outside of roofing slate and shingle retention.
Fit each strap by positioning it beneath the slate so that it wraps around the lower edge and both legs can be nailed or stapled to the roofing batten below. Ensure the strap sits flat against the batten before securing to avoid any rocking that could loosen the fixing over time. Copper is relatively soft and easy to bend to shape on site, so minor adjustments to the fold angle can be made by hand without tools.
Check that the batten spacing suits the slate size and that the strap length is appropriate before starting.
Position the slate in place on the batten, centred and lapping correctly over the course below.
Slide the copper strap up beneath the slate so the mid-point of the strap sits at the bottom edge of the slate.
Fold both legs of the strap down over the front face of the batten.
Nail or staple each leg firmly to the batten, keeping the strap snug against the slate edge.
Check the slate is secure and does not rock before moving to the next fixing.
Why use copper slate straps rather than galvanised steel ones?
Copper does not rust. Galvanised fixings can eventually corrode once the zinc coating is compromised, which leads to rust staining on natural slate and eventual fixing failure. Copper weathers without corroding and is the standard material specified for heritage and conservation roofing for exactly this reason.
Are these straps suitable for both natural slate and timber shingles?
Yes. The 150 x 13mm size works well with standard natural slates and timber shingles. They provide a secure mechanical fix without the need to nail through the slate face, which is particularly useful where the slate is brittle or where drilling or nailing risks cracking.
These straps are fabricated from copper, offering inherent resistance to corrosion without the need for protective coatings. Copper is a non-ferrous metal that does not oxidise in the same way as steel, making it well suited to permanent outdoor use in wet or coastal environments. At 150mm long and 13mm wide, the strap dimensions are consistent with standard roofing practice for slate and shingle fixing.
Size
150 x 13mm
Material
Copper
Pack Quantity
100 per TIMbag
Pack Type
TIMbag
SKU
CSS150B
Application
Slate and shingle fixing
Size
150 x 13
Box Quantity
100 PCS
Pack Type
TIMbag
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