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Enter your roof measurements below and we will calculate the complete Britmet LiteSlate material schedule for your project.
Planning a roof using Britmet LiteSlate? Use our free Britmet LiteSlate Roof Calculator to estimate the number of tiles, fixings and roofing accessories required for your project.
Simply enter your roof dimensions and select the relevant roof details. The calculator uses your measurements alongside Britmet LiteSlate coverage data to create an estimated material list, helping you work out what you need before placing your order.
Britmet LiteSlate is a lightweight synthetic roofing slate designed to replicate the appearance of traditional natural slate without the associated weight.
Its lightweight construction makes LiteSlate particularly suitable for projects where reducing the load on the roof structure is important, including conservatory roof conversions, garden rooms, extensions, outbuildings and refurbishment projects.
The number of LiteSlate tiles required depends on the total roof area, roof pitch and the required headlap. Our calculator uses the information you enter to estimate the quantity required and includes your selected allowance for cuts and waste.
The calculator can estimate the main components required for your LiteSlate roof, including:
Where products are supplied in complete packs, boxes or fixed lengths, calculated quantities are rounded up to complete purchasable units.
Unlike roofing products with a single fixed coverage rate, the number of LiteSlate tiles required per square metre can vary depending on the roof pitch and corresponding headlap.
This makes using the correct coverage rate particularly important when estimating your project.
Our LiteSlate calculator takes the relevant installation requirements into account, helping provide a more accurate estimate than simply multiplying the roof area by a single tiles-per-square-metre figure.
An appropriate allowance should be made for cuts and waste when calculating your LiteSlate requirements.
Simple rectangular roof slopes will generally produce less waste, while roofs incorporating hips, valleys, dormers and other details may require a greater allowance.
The calculator allows you to include a waste percentage within your calculation, automatically increasing the estimated tile quantity accordingly.
Correct fixing is an important part of installing a LiteSlate roofing system.
The calculator estimates the fixing requirement from the calculated number of slates and the fixing requirements of the system. Where fixings are supplied in complete packs or boxes, the result is rounded up to ensure sufficient fixings are included for the calculated roof.
Depending on the design of your roof, additional components may be required to complete ridges, hips and verges.
Enter the relevant linear measurements and roof configuration into the calculator and it will estimate the number of applicable components required based on their effective coverage.
This allows you to calculate the main roof covering and finishing components together rather than estimating each part of the roof separately.
A suitable roofing membrane forms part of the roof build-up beneath the LiteSlate system.
Where membrane is included within your calculation, the calculator uses your roof area and applicable allowances to estimate the number of rolls required for your project.
Calculating a LiteSlate roof manually can involve several separate calculations, particularly where the required slate coverage changes according to roof pitch.
Our Britmet LiteSlate Roof Calculator brings the key calculations together, using your roof dimensions and selected options to provide an estimated material list for your project.
Once your calculation is complete, you can review the quantities and select the Britmet LiteSlate tiles, fixings and accessories required for your roof.
Our Britmet LiteSlate Roof Calculator is provided as an estimating tool. Calculations are based on the measurements and options entered together with product coverage information. Actual requirements may vary depending on roof design, installation method, cutting requirements and site conditions.
Always check calculated quantities and the manufacturer's installation requirements before ordering. For complex roofs or where you are unsure of the materials required, we recommend consulting an experienced roofing professional.
