Vermont Structural Unfading Mottled slate is a top of the range slate, highly regarded worldwide as one of the very best slates available. It has been used in the USA and the United Kingdom for centuries on many prestigious buildings. Details of projects in the UK date back to the 1890’s where the Vermont slate is still on the roof today doing what it was made to do – protect the building from the harsh elements. In more recent times it has also been approved on specific English Heritage projects, Crown Estates and also in several National Parks.
Vermont Structural Unfading Mottled is unique compared to other slates on the market as it is extracted from an area of the quarry where a vein of unfading purple slate meets and intermingles with a vein of unfading green. The resulting combination of colours produces a mottled slate, which doesn’t sound nice. In reality, this mix of colours creates some of the most stunning roofs that we have ever supplied.
Vermont Structural Unfading Mottled is different from most other slates from the North East of America in several important ways. It is all produced from block extracted from a single family owned & run quarry, the raw block is then cut in the production sheds to ensure that the slates are made “on the grain”. This greatly improves strength, longevity and workability of the finished roofing slate.
Normally, the slate is supplied in a Diminishing Courses x Random Widths package. It is also available in Fixed Lengths x Random Widths, as well as Single Sized slates.
The slate is fully tested to ASTM1