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Tapco Roof Calculator

Enter your roof measurements below and we will calculate the complete Tapco Slate material schedule for your project.

  1. Roof style
  2. Measurements
  3. Your kit
What style is your roof?

Pick the picture that looks most like your roof. Not sure? Choose the closest match, you can check every measurement before anything is added to your basket.

Choose your colour

One colour for the whole kit, tiles and all matching trims come in your chosen colour.

Measure in
Tell us about your roof

The total surface area of the roof slopes to be covered, in square metres.

The angle of the roof slope from horizontal, in degrees.

Extra material to allow for cutting and wastage. 10% suits simple roofs; complex roofs with hips and valleys typically need more.

Your material list

This calculator provides an estimated material requirement based on the measurements and information entered. Please check all measurements, quantities, product suitability and installation requirements before ordering. Roofin Online cannot accept responsibility for errors caused by incorrect or incomplete information entered into the calculator.

Tapco Slate Roof Tile Calculator

Planning a roof with Tapco Slate? Use our free Tapco Slate calculator to quickly estimate the number of synthetic slate roof tiles and accessories required for your project.

Simply enter your roof dimensions and the calculator will estimate your material requirements, helping you plan your project, minimise waste and order the correct quantity of Tapco Slate with confidence.

Calculate How Many Tapco Slate Tiles You Need

Tapco Slate is a lightweight synthetic slate roofing system designed to recreate the traditional appearance and character of natural slate while providing the consistency, durability and practical benefits of a modern manufactured roof tile.

Suitable for a wide variety of pitched roofing projects, Tapco Slate can be used on houses, extensions, conservatory roof conversions, garden rooms, garages, porches, outbuildings and other residential and commercial applications.

Working out how many Tapco Slate tiles you need involves more than simply multiplying the length and width of a roof. Roof pitch, slate exposure, hips, ridges, valleys and wastage can all affect the final quantity required.

The Roofin Tapco Slate calculator simplifies the process by using your roof measurements and the coverage requirements of the system to estimate the materials needed for your project.

Enter your roof dimensions into the calculator above to get started.

Why Choose Tapco Slate?

Tapco Slate provides the appearance of traditional slate while avoiding many of the practical disadvantages associated with natural quarried stone.

Manufactured from a recyclable blend of dolomite limestone and polypropylene, Tapco Slate tiles are lightweight, durable and designed to withstand demanding external roofing conditions.

Multiple moulds are used during manufacture to reproduce the natural variations found in real slate. Combined with the distinctive InFlex camber, this creates an authentic layered appearance across the finished roof rather than an overly uniform manufactured finish.

Tapco Slate is also considerably easier to handle and work with than natural slate. The tiles can be cut using conventional tools and will not shatter, crack or delaminate like natural stone, helping to simplify installation and reduce unnecessary wastage.

Where Can Tapco Slate Be Used?

Tapco Slate is suitable for both new-build and refurbishment projects where a traditional slate appearance is required without the weight and installation demands of natural slate.

Common applications include house roofs, extensions, conservatory roof replacements, garden rooms, home offices, garages, porches, timber frame buildings, park homes and other pitched roofing projects.

The low weight of Tapco Slate makes it particularly useful for lightweight roofing structures and renovation projects where reducing the load placed on the existing structure can be beneficial.

A selection of colours is also available, allowing Tapco Slate to complement both traditional and contemporary properties.

What Does the Tapco Slate Calculator Work Out?

The Roofin Tapco Slate calculator uses your roof dimensions together with the coverage requirements of the Tapco Slate roofing system to estimate the materials required for installation.

Depending on your roof design, this can include the main synthetic slate tiles together with relevant ridge, hip and roofing accessories needed to complete the project.

This provides homeowners, DIY installers, roofers and contractors with a quick starting point when budgeting for a roof, preparing a quotation or ordering materials.

For the most accurate estimate, measure the actual roof surface wherever possible. A pitched roof has a greater surface area than the footprint of the building below it, so using building length and width alone can underestimate your roofing requirements.

How Many Tapco Slate Tiles Do I Need?

The number of Tapco Slate tiles required depends on the total roof area and the installation specification for your project.

Because roof tiles overlap during installation, their physical dimensions cannot simply be multiplied to determine roof coverage. The exposure of each installed slate determines how much of the tile contributes towards the finished roof covering.

The shape of the roof can also affect how many tiles you need. A straightforward pitched roof generally creates relatively little wastage, while hips, valleys, rooflights, dormers and other details require additional cutting.

Our Tapco Slate calculator takes the appropriate coverage requirements into account, providing a much easier way to estimate how many Tapco Slate roof tiles you need.

Tapco Slate Ridges and Roofing Accessories

A complete Tapco Slate roof requires more than the main synthetic slate tiles.

Depending on the design of your roof, you may also require matching ridge and hip tiles, roofing membrane, battens, fixings, ventilation products and accessories for eaves, verges and abutments.

Using compatible roofing components helps create a complete system while maintaining a consistent appearance across important details such as hips and ridges.

The calculator can help estimate the relevant Tapco Slate components for your roof, making it easier to plan and order the complete roofing system.

Ordering Tapco Slate

Once you have calculated your requirements, you can use the estimated quantities to order your Tapco Slate roof tiles and accessories through Roofin Online.

We recommend checking your measurements carefully before ordering and including an appropriate allowance for cuts and wastage. Complex roofs incorporating hips, valleys, rooflights, dormers or other details may require a greater allowance than a simple pitched roof.

The Tapco Slate calculator is intended as a material estimation tool. Every roof is different, so calculated quantities should always be checked against your individual roof design and the manufacturer's installation guidance before placing your order.