Slate Roof Verge Detail

The minimum width of any one slate in an exposed position should be 115m.

Slate roof verge detail.

For more information contact us on 01282 423 444. Gable edge projection and drip edge projection can also vary somewhat. The cant strip is variable in thickness according to the thickness of the slates being installed thicker slates require a thicker cant strip. The above illustration shows basic installation details for a traditional standard thickness slate roof.

Full application and sitework details are given on pages 8 to 22. Effective design of a slate roof must take into account a number of inter related factors including site exposure the pitch of the roof the type of slate selected and the slate lap. 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. General guidance on the most important points to be considered is given below.

Drip edge varies in dimensions but typically the flange that nails to the roof surface is about 2 5 wide and the vertical edge that directs roof runoff down and away is about 1 5 in depth. Carry tiling battens over undercloak and finish 100mm from verge edge. Carry underlay 50mm onto outer leaf of gable wall. Our continuous dry verge system for slate roofs has become the roofers first choice.

The drip edge also gives us a nice straight edge with which to align roof shingles slates or other roofing material. Bed an undercloak of plain tiles laid face down with bottom ends exposed projecting not more than 50mm beyond face of wall. They should project 30 60mm beyond the gable wall or bargeboard. Cad drawings and further information about designing your roof.

Where interlocking tiles are used at the verge. Natural slate verges should be formed with full slates and either slate and a half or half slates that are a minimum of 150mm wide.