Top slate at ridge and dry ridge system

[bluebellcottage]

I have finally made it to the ridge on my roof and have a couple of questions regarding the top slate.

 

please ignore the rough nature of the slating and mismatched ridge roll, these were my reject slates and only fitted for mockup.

 

Is this the correct way to fit the top slates in terms of the lap? The area where you can see the batten seems vulnerable but I can’t see a at around this.

 

 

Using the dry ridge system leaves a small

gap between the slate and the ridge tile, around 5-10mm. This is because the ridge tile has bottomed out on the ridge batten. I can’t really drop the ridge batten because it will leave a dip in the top of the ridge roll which I believe is not desirable as it can collect water.

Adding a fillet under the top slate on the top batten improves the gap and makes the slate more stable as the slate now can’t rotate around the nails and lift the bottom edge.

 

the only other way I could get around the ridge tile gap is to go and find some taller ridge tiles or drop my ridge batten down.

[nod]

Should be ok 

You May have to clip some off the top of the slate as you go As it tends to foul the the top baton