To the roofers - underlayment for tiles on garden shed

Hello,

we want to cover our garden shed with leftover roof tiles.
What is the best way to install the battens underneath?

I have already asked roofers, but nobody wants to do a garden shed.
I am a bit unsure about how the battens and counter battens need to be mounted so that we can cover it properly later.

Data:
- Roof pitch 19 degrees
- Tiles approved up to 16 degrees
- Tiles Brass Rubin 13V
- Underlay is installed
- From eaves to ridge it is 181 cm
- From gable to gable 238 cm

I have attached pictures with the data of the tiles.
I know experts will now say: "it's all on the website." But I don't get it.
At the eaves and the gables, the edge of the tiles should fit as precisely as possible.
The overhang of the tiles should therefore be kept as small as possible, but of course without cutting.

We still have enough normal roof tiles. However, I still need verge tiles and ridge tiles for the beginning and end.
We don't have ridge connection tiles, and I want to do without them as well.
How do I best install the ridge tile then? Do I need a ridge board, or are there other options?
Do I need a ridge roll for ventilation?

I'm not a roofer, but as information from mine regarding the idea of covering the bikeport with tiles (I also still have plenty left): The substructure is usually not designed for the corresponding load! Roof tiles are heavy. Additionally, gutters, downpipes, etc., Conclusion: Not worth it, now something else is going on top (My current favorite: metal) But the same applies here: A picture of the garden shed might lead to better answers because there are garden huts and garden villas ;)

Actually quite simple. You know where you want to start and end at the top and bottom, and thus (with the measurements of the tiles and hanging tabs) you have the measurements for the topmost and bottommost battens. You have to calculate your remaining measurement so that you achieve the minimum overlap and divide it evenly. Similar for the width, but here you cannot play with the overlap. So calculate exactly (with half and whole tiles and verge) what measurement you get. This measurement results in your roof width (238cm + overhang (rest of the result from your roof width). Hope that was understandable.

Hello tx25, how did you do it in the end?

Hi, in the end we completely decided against it. The main reason was that we were still missing some of the ridge and verge tiles. We couldn't get hold of these. The manufacturer wanted to charge us over €700 including shipping costs and so on. In the end, that was too expensive for us. So we covered the roof with leftover underlay membrane and then laid [Biberschindeln] on top.

This step is coming up for me right now.

At the building materials dealer, I should pay €1,040 for pan profiles including accessories from a German manufacturer.

From an ebay Classifieds seller, I’m supposed to pay €410 for pan profiles made in Poland/Romania including accessories.

And at the same building materials dealer from above, for glazed roof tiles with all verge tiles, ridge tiles, clamps = €980.

I find tiles look very elegant, but the weight of about 1000kg worries me.