The under cloak should have a fall away from the wall to prevent water running back to the wall and leaving a stain or soaking in.
Roof verge undercloak detail.
Cloaked verge tiles are handed and should be specified when ordering.
This is due to roof slopes being described whilst looking at the roof slope not the gable end.
Bargeboards and in some cases gable end brickwork are prone to deviation in their length just like the fascia boards at the eaves and this can transfer itself to the verge detail when installing the undercloak.
Carry tiling battens over undercloak and finish flush with verge edge.
Download the dwg file.
Eaves and verges detail for a plain clay roof.
For this reason it is advisable to lay undercloak to a line especially on longer rafters.
Bed edge of verge tiles flush with undercloak on 75mm wide bed of mortar leaving the edges clean.
Carry underlay over full width of gable wall and turn down 50mm behind cloaks.
Download this stock image.
Download dxf file.
Showing a nice bit of work pointing a verge on the end of the roof on this home in sheffield.
Verge detail on new slate roof hello i am having my roof slated at the verge ive noticed that the battens sit flush with the existing bargeboard meaning the slates cannot overghang the verge in the usual way ie with cement board under the battens instead the first slate will just sit flat on the barge board.
Fix cloaked verge tiles and cloaked verge half tiles in alternate courses.
Left hand verge is illustrated.
Roof undercloak installation overview.
This will provide an effective underlayer to support a bed of mortar and allow for mortar adhesion whilst also offering a clean finish to the verge detail.
Undercloak needs to lap under the end of the tile batten by no more than 50mm leaving the outer 50 75mm for mortar and a 25 50mm gap between the end of.
Carry underlay over full width of gable wall and turn down 50mm behind cloaks.
Never use a plain tile undercloak with interlocking tiles.
The one on the right is a left hand verge and the one on the left is a right hand verge.