The best choice for Scottish roofs

Its extra thickness of 7-8 mm gives it the perfect strength to withstand Scottish weather while boosting the value of any property.

A poor quality roof needs constant repair and maintenance, but when good quality slate is used, not only the cost of re-roofing can be effectively discounted, but the repair and maintenance expenses during its lifetime are extremely low.

The use of Heavy 3 slates results in a low life cost.

If you have any questions, our experienced team on slate is at your disposal

Why choose Heavy 3 slate

Reasons to choose the perfect roofing slate:

A true Heavy

Produced at an extra thickness suited for inclement weather.

No re-roofing

No Heavy 3 roof has ever been replaced or repaired.

Reputation confirmed

More than 125 years of production.

Peace of mind

100 years warranty on Heavy 3 slates.

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The value of Heavy 3 lies in its properties

Heavy 3 is more cost effective than concrete or ceramic tiles, which typically last approximately 50 years.

Impermeable to water

Its extra thickness gives it strength to combat dampness, high wind speeds and driving rains common throughout Scotland.

Weather and UV resistant

Unchanged properties over time without the need for maintenance.

Chemical resistant

Not affected by chemicals or pollutants (acid or alkali) exterior.

Other characteristics of slate, such as strength and impermeability, are also superior to those of concrete and ceramics.

Heavy 3 slate is quarried from the CUPA PIZARRAS No 3 quarry in San Pedro de Trones (León) in northern Spain. This quarry has been in operation since 1892 and produces around 25,000 tons each year!

Not damaged

By fungi, moss, insects, animals or birds.

Strong

While weighing substantially less than man-made roofing tiles.

Non-combustible

Natural slate is a material that does not ignite.

Case Studies

Some of the most renowned projects featuring Heavy 3 slate roofs:

CUPA PIZARRAS helps rebuild lochness visitor centre

The real taste of Scotland: HEAVY 3 slate used on whisky distillery

Over 290,000 CUPA PIZARRAS roof slates for new Scottish town

Something old, something new, something borrowed, something black-blue

Scottish builder chooses Heavy 3 over and over

The Glebe: vivid waters, open skies and natural slate

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Heavy 3 should undoubtedly be any Scottish construction project's first slate of choice. As Climate conditions trend toward increased rainfall volume and frequency, there's really no alternative to Cupa Heavy 3 to provide the confidence that your project will be protected in the years ahead

"We always use the CUPA PIZARRAS Heavy 3 on all of our projects. Strong and impermeable, the thicker 7-8mm variant is most definitely the preferred choice in Scotland with the extra thickness and weight giving it strength to withstand the high wind speeds and driving rain common across the country."

"The very nature of Scottish architecture lends itself to selecting a natural slate roof. Having used the CUPA PIZARRAS Heavy 3 slate on our own roof many years ago, as a practice, it’s our go-to slate of choice for projects that require a high-quality and durable product."

"Heavy 3 was ideal for this project due to its close resemblance to the traditional highland slate from Ballachulish that is no longer produced, making the CUPA PIZARRAS slate now the primary choice for traditional Scottish slate roofing, whether it be for new or refurbished roofs. In addition, it is the only slate that can successfully withstand the Scottish weather, thanks to its thickness of 7-8mm"

"We used CUPA Heavy 3 natural slates because they met the strict Planning guidance and were ‘tried and tested’ in rural Scotland. Allan Liddell was extremely helpful during the design stage by developing a specification for random width slates laid in diminishing courses."

"For the roof, our priority was to source a good quality natural slate that would last and withstand the inclement Scottish weather conditions. Following extensive research, we discovered and specified Cupa Pizarras Heavy 3."

Brochures

For technical information; declarations of performance, certifications and installation, please visit our resource centre.

Heavy 3 Brochure

For further details about Heavy 3 slate, please download our product brochure.

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