Natural roofing slates of good overall quality make the SIGA Classic range ideal for almost any project. Although they require more sorting and grading to produce the desired roof finish, all SIGA Classic roof slates must meet the same criteria as the higher grades.

All slates are S1, T1, W1 (≤ 0,6%) to comply with NHBC Standards. Wastage is a little higher than the Commercial range.

All our SIGA Classic slates come with a 30 Year Warranty, terms and conditions apply.

Each SIGA natural slate product has a SIGA number – SIGA 120, SIGA 32 and so on. The SIGA number specifically defines the quarry and selection of slate, guaranteeing traceability and consistency that is second to none.