Traditional Roof Slate Sizes

Slates roofs are very heavy and can weigh ten pounds per square foot for slate when the weight of the slate underlayment and flashings are included.

Traditional roof slate sizes. Slate roof tiles can range in size from 12 length x 6 wide up to 24 length x 12 wide. Weight of slates kg 1000 1235 exposure moderate roof pitch 40 roof area m 2 150 length of roof slope m 9 5 the headlap can be found from table 1 by reference to slate size roof pitch and exposure 65 mm. This system of naming slate sizes after female. Each quarry would have its own size ranges and because these are a reflection of the geology of the slate or stone there is a regional element to random roofs.

The slate industry of north and mid wales traditional names and sizes of slates. Large sizes are common in the north of england pennine sandstones and the south west cornish rag slates sussex horsham stone and in the north of scotland caithness and orkney flags. This page has also been translated into polish thanks to valeria alexandrova. Our slates are available in various sizes colours and finishes.

The total weight of slates on roof can be found from the formula. Find out more below about the characteristics of our slates. While it s a more costly option due to the processes and materials that go into its manufacturing this versatile slate can be used on pitched roofs at 15. Our slates are suitable for both roof and facade cladding.

The redland cambrian grey slate is a good example of man made slate as it is composed of 60 of natural slate the slate also comes with interlocking ability. The tables above give minimum recommended laps according to exposure roof pitch and slate size. All sizes are in inches length and then width. If the plan is to place a slate roof on a building which has never had one structurally assess the size and condition of the rafters to confirm that the existing structure can support the weight.

The slate coverage per m2 can be found from table 2 23 9. For an ultramodern or more traditional look for your project. Special sizes such as slate and a half can be ordered to reach into valleys gable ends hips and dormers. Our range includes ardonit and montana slates.

12 slate sizes and weights 13 coverage. Traditional sizes that are not listed above and random diminising slates can be made to special. On many traditional roofs mortar skews were used and while their replacement with lead is likely to result in a more durable repair the change in material and the angles in which the slates sit will change the appearance of the roof figure 11. There are various types of slates.