Heavy 3: A Roof for Life
Its extra thickness of 7-8 mm gives it the perfect strength to withstand any weather conditions 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.
Hence the use of Heavy 3 slate results in very low whole life cost.
If you have any questions, our experienced team on slate is at your disposal.
Why choose Heavy 3
These reasons will definitely help you choose the perfect roofing slate:
A true Heavy
Produced at an extra thickness suited for inclement weather.
No cases of Heavy 3 roofs being replaced or repaired.
More than 125 years of production.
Peace of mind
100 years warranty on Heavy 3 slates.
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.
Weather and UV resistant
Unchanged properties over time without the
need for maintenance.
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!
By fungi, moss, insects, animals or birds.
StrongWhile weighing substantially less than man-made roofing tiles.
Natural slate is a material that does not ignite.
Would you like to see a sample? Please complete the form to receive your slate sample.
These are some of the most renowned projects featuring a Heavy 3 roof.
"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."
"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."
"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."
Resource centre. Access all documentation, certification and technical details of the product.
Heavy 3 Brochure
For further details about Heavy 3 slate, please download our product brochure.