Natural Slate Roof Details

Weight of slates kg area of roof m 2 slate coverage 1000 therefore the total weight 1235 1000 150 23 9 4427 kg.

Natural slate roof details.

Conventional low pitch slate roofs are recommended down to a minimum of 20 in areas of sheltered or moderate exposure providing a 500x300mm slate is used and a headlap of 115mm. Slate size roof pitch and exposure 65 mm. The standard sizes for roofing slate start at 12 in length and increase by 2 inch increments up to 24 in length. In order to provide you with the opportunity to specify low pitched slate roofs below 20 with confidence siga commissioned the bre to carry out a set of tests.

Gable edge projection and drip edge projection can also vary somewhat. For more information contact us on 01282 423 444. The minimum recommended pitch for natural slate is 25 although this can be lowered down to 20 with products like the siga 56m natural slate and is also dependent on slate size. How easy is natural slate to install.

Installing natural slate is a more specialist job than most other kinds of roof covering. Some homes were created with the promise of a slate roof in mind. Cad drawings and further information about designing your roof. The cant strip is variable in thickness according to the thickness of the slates being installed thicker slates require a thicker cant strip.

Cost details one of the factors that deters many homeowners from installing a slate roof is the high cost of materials and labor. Split to an average thickness of 5mm 7 5mm and 9 mm. The slate coverage per m2 can be found from table 2 23 9. Dark grey natural slate with thin laminations and a riven surface.

The total weight of slates on roof can be found from the formula. Depending on the grade thickness and the overall quality of slate tiles expect to pay between 6 50 and 15 00 per square foot for materials alone. Davinci slate delivers on that promise with its astonishing versatility. The above illustration shows basic installation details for a traditional standard thickness slate roof.

Slate roof condition assessment surveys part 2 slating nails technical bulletin 7 full pdf assessing the condition of the slating nails various types of nails have been used to secure slate shingles over the years. Higher exposure or different sized slates necessitated a greater roof pitch of 22 5 or more.