Reclaimed Sandtoft Calderdale Mk1 Concrete Roof Tile – Grey

Reclaimed Sandtoft Calderdale Mk1 Concrete Roof Tile – Grey - Image 2

Reclaimed Sandtoft Calderdale Mk1 Concrete Roof Tile – Grey - Image 3

SKU: RST-CALDERDALE-MK1-GREY-420 Categories: Concrete Tiles, Reclaimed Roofing Materials Tags: Calderdale, concrete roof tile, grey tile, heritage roofing, interlocking tiles, Reclaimed, sustainable roofing, UK reclaimed tiles

Reclaimed Sandtoft Calderdale Mk1 Concrete Roof Tile – Grey

Name: Reclaimed Sandtoft Calderdale Mk1 Concrete Roof Tile – Grey
SKU: RST-CALDERDALE-MK1-GREY-420
Availability: InStock

The Reclaimed Co. Price:

£1.50 + Vat

86 in stock

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🏪 Collection

Delivery calculated at checkout and can be delivered nationwide by pallet/courier or locally by our own fleet

Your nearest store:

York

Sutton Road, Wigginton, YO32 2RB

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Reclaimed Sandtoft Calderdale Mk1 concrete roof tiles in grey.
Featuring a traditional Double Roman profile with deeper rolls.
Approx 420x334mm.
Ideal for roof repairs.
Extensions, and full re-roofs.

+Product Info

Description

Reclaimed Sandtoft Calderdale Mk1 Concrete Roof Tiles – Grey

Reclaimed Sandtoft Calderdale Mk1 Concrete Roof Tiles feature a traditional Double Roman profile with a deeper roll design, widely used across UK housing. Carefully reclaimed from existing roofs, these tiles provide a sustainable and cost-effective solution for roof repairs, extensions, and full re-roofing projects. Their classic profile delivers a timeless appearance while maintaining strong interlocking performance.

Reclaimed Sandtoft Calderdale Mk1 Concrete Tile Technical Spec

Material: Concrete (reclaimed)
Colour: Grey / slate grey tone (weathered)
Tile size: Approx. 420 x 334 mm
Hanging length: ~398 mm
Profile: Double Roman (Mk1 deeper roll, interlocking)
Cover width: ~300 mm
Roof coverage: ~9.7 tiles per m² @ 75 mm headlap / ~10.5 tiles per m² @ 100 mm headlap
Minimum roof pitch: 17.5° (smooth finish) / 22.5° (granular finish)
Maximum roof pitch: 90°
Headlap: 75 mm minimum
Batten spacing: ~310 – 345 mm
Weight per tile: ~4.5 kg
Weight as laid: ~45 – 48 kg per m²
Tiles per pallet: ~200 – 216
Fixings: Ring shank aluminium alloy nails, typically 45–65 x 3.35–3.75 mm (BS 5534 compliant)

These reclaimed Sandtoft Calderdale Mk1 tiles are ideal for matching existing roofs, traditional properties, and large-scale re-roofing projects. The interlocking Double Roman profile ensures durability, weather resistance, and a consistent finish.

Reclaimed Roofing Expertise

Whether restoring a period property or sourcing sustainable roofing materials, our reclaimed Sandtoft Calderdale Mk1 tiles offer durability, character, and reliability. All reclaimed tiles are carefully inspected, sorted, and cleaned to ensure quality and usability.

Explore our full range of reclaimed concrete roof tiles here. Learn more about our sourcing standards and reclaimed materials on our About Us – The Reclaimed Connection page.

Do you have any to sell?

Have similar reclaimed roofing materials available? List them on our specialist marketplace at The Reclaimed Company and connect with buyers looking for genuine reclaimed building materials. Your first listing is free!

Additional information

Weight	5 kg

Slate Calculator

Slating Headlap

Lap

Expandable Headlap Info

Choosing Headlap

Definition: The vertical overlap between successive rows of tiles to prevent water ingress.

Factors to consider:

Roof pitch: Shallower pitches (< 30°) need 75–100 mm; steeper (> 45°) can use 50 mm.
Climate & exposure: Wind-driven rain or heavy rainfall zones benefit from more headlap.
Tile profile: Deeper tiles may require extra overlap to seal correctly.

Rule of thumb:

Standard (30–45°): 50–75 mm
Low (< 30°): 75–100 mm
High (> 45°): 50 mm

Slate Size / Type

Slate 50mm Lap

Selecting Tile Size

Coverage per tile: Larger tiles cover more area but are heavier, affecting handling and substrate load.

Aesthetic scale: Big tiles suit modern, minimal lines on large roofs; smaller tiles give more texture and a traditional look.

Structural limits: Check rafters and battens can support the chosen tile’s weight and fixing centres.

Installation speed vs. waste: Larger tiles lay faster but may require more cutting at edges, increasing waste. Smaller tiles take longer but can reduce off-cuts.

Compatibility: Ensure the tile size works with your chosen headlap & side-lap for correct coverage per m².

By balancing pitch, weather, substrate capacity and appearance, you’ll pick the optimal tile size for performance and style.

Slate 75mm Lap

Selecting Tile Size

Coverage per tile: Larger tiles cover more area but are heavier, affecting handling and substrate load.

Aesthetic scale: Big tiles suit modern, minimal lines on large roofs; smaller tiles give more texture and a traditional look.

Structural limits: Check rafters and battens can support the chosen tile’s weight and fixing centres.

Installation speed vs. waste: Larger tiles lay faster but may require more cutting at edges, increasing waste. Smaller tiles take longer but can reduce off-cuts.

Compatibility: Ensure the tile size works with your chosen headlap & side-lap for correct coverage per m².

By balancing pitch, weather, substrate capacity and appearance, you’ll pick the optimal tile size for performance and style.

Slate 100mm Lap

Selecting Tile Size

Coverage per tile: Larger tiles cover more area but are heavier, affecting handling and substrate load.

Aesthetic scale: Big tiles suit modern, minimal lines on large roofs; smaller tiles give more texture and a traditional look.

Structural limits: Check rafters and battens can support the chosen tile’s weight and fixing centres.

Installation speed vs. waste: Larger tiles lay faster but may require more cutting at edges, increasing waste. Smaller tiles take longer but can reduce off-cuts.

Compatibility: Ensure the tile size works with your chosen headlap & side-lap for correct coverage per m².

By balancing pitch, weather, substrate capacity and appearance, you’ll pick the optimal tile size for performance and style.

Slates Per m2

Expandable Slates per m² Info

Calculating Slates per m²

Definition: Number of slates needed to cover one square metre.

Formula: 1 000 000 mm² ÷ (effective width × effective height)

Where:

Effective width = tile width – side lap
Effective height = tile height – head lap

Example: 610 mm × 355 mm tile, 20 mm side lap, 75 mm head lap:

Effective width: 610 − 20 = 590 mm
Effective height: 355 − 75 = 280 mm
Area per slate: 590 × 280 = 165 200 mm²
Slates per m²: 1 000 000 ÷ 165 200 ≈ 6.05

Adjust your headlap and sidelap values for precise coverage calculations.

Slate Required(Required)

Measure Your Roof Area

Determining Your Roof’s Area (m²) Accurately measuring your roof is essential to estimate how much slate you’ll need. Follow these steps: Measure the rafter length Runs from the gutter up to the ridge line.

Width (m)

Length (m)

Total Mtr²

Total Slates Required

Copper Nails Total KG

Expandable Copper Nails Info

Copper Nails for Slating: Overview & Specs

Why use copper nails?

Corrosion resistance: Forms a protective patina to prevent rust and staining.
Superior durability: Lasts for decades without needing replacement.
Optimal flexibility: Absorbs roof movement without cracking or shearing.
Aesthetic harmony: Weathers to a warm patina that complements natural slate.
Chemical compatibility: No galvanic reaction with slate or lead flashings.

Packaging & usage: