Traditional Slate Roof Verge Detail

The overhang of slate at the verge should be between 40 and 50mm and wide slates doubles should be used in alternate courses to maintain the bond.

Traditional slate roof verge detail.

The article concludes with a consideration of the future of vernacular roof conservation noting the importance of ensuring that contractors who are. Carry tiling battens over undercloak and finish 100mm from verge edge. Mortar on a roof verge undercloaked verge. Verges can also be undercloaked when a fibre cement board projects beyond the fascia and the tile verge is mortared to this.

Slate dry verge 46 tile dry verge 60 dry fix ridge hip 22 dry fix valley troughs 21 brand kytun 46 colour blue black slate grey 4 black 7 length size 2 4m lengths 8 3m lengths 3 composition aluminium 8 upvc 3 slate type fibre cement 18mm 5 natural slate 25mm 5. Bed an undercloak of plain tiles laid face down with bottom ends exposed projecting not more than 50mm beyond face of wall. Timber cappings are also used to hold verge slates against wind forces. A traditional verge is built on the fascia.

Carry underlay 50mm onto outer leaf of gable wall. Slate size roof pitch and exposure 65 mm. Modern houses are often built with dry verge systems. The reason the starter course is laid face down is because the drip edge of the starter slate then merges flush with the drip edge of the first.

Published more than 85 years ago slate roofs has long been the essential go to guide for determining material quantities roof layout specification data and. Verge slating the simplest verge just carries the slating to the edge of the roof but this needs care. Weight of slates kg area of roof m 2 slate coverage 1000 therefore the total weight 1235 1000 150 23 9 4427 kg. Anyone who has detailed a slate roof or any other type of traditional steep slope roof is likely to be familiar with slate roofs published by the national slate association in 1926.

Specialist roofing consultant terry hughes looks at vernacular slate and stone roofs. Mortared roof verge traditional verge. The total weight of slates on roof can be found from the formula. His article provides guidance on how to record them and gives an overview of typical vernacular details such as slate valley construction and lapping variations.

The slate coverage per m2 can be found from table 2 23 9. Assuming the slates are properly nailed and are not weak in themselves they should be ok.