<div dir="ltr">I agree with others. This is not my understanding. But, let's assume it was? So? Slate is always black. It also can't be curved.. IIRC, the mineral structure means it always fractures on a 2d plane, the only question being how thick it is. So if it is a subset or not for some mappers locally, it doesn't seem to matter much. You can always clearly tell what is slate and what it is not. And if you see the two options on StreetComplete you would know which one to pick.<div><br></div><div>At the very least that means it's way better than other subsets.. Like `concrete` and `concrete:plates` which God himself can't get a consensus on, and requires destructive analysis to differentiate. =)</div><div><br></div><div>But sure, maybe</div><div><br></div><div>material:tile</div><div>tile:slate</div><div><br></div><div>would be better... then you could also do,</div><div><br></div><div>material:tile</div><div>tile:glass_solar</div><div><br></div><div>for the new Tesla <a href="https://www.tesla.com/solarroof">https://www.tesla.com/solarroof</a>, and it would also support.</div><div><br></div><div><div>material:tile</div><div>tile:terracotta<br><br>But I'm not sure anything _needs_ to change here,</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 13, 2023 at 3:02 PM Timothy Noname <<a href="mailto:hervbeof@gmail.com">hervbeof@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">Every source I've seen indicates that slate is a type of roof tile and that roof tiles don't need to interlock to be roof tiles.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, 11 Mar 2023, 08:35 Warin, <<a href="mailto:61sundowner@gmail.com" rel="noreferrer noreferrer" target="_blank">61sundowner@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Slate in comparison to a rood tile is flat and not of a uniform
dimension. <br>
</p>
<p><br>
</p>
<p>Roof tiles can be made of terracotta, fired glazed clay or
concrete- They are made to a uniform pattern that overlaps and
keys in to the other tiles. <br>
</p>
<p><br>
</p>
<div>On 11/3/23 10:49, Timothy Noname wrote:<br>
</div>
<blockquote type="cite">
<div dir="auto">They overlap a lot, less than 50% of a slate tile
is visible <a href="https://www.gbrroofing.co.uk/wp-content/uploads/2021/08/blue-slate-roofing-5.jpg" rel="noreferrer noreferrer noreferrer" target="_blank">https://www.gbrroofing.co.uk/wp-content/uploads/2021/08/blue-slate-roofing-5.jpg</a></div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, 10 Mar 2023, 21:48
Philip Barnes, <<a href="mailto:phil@trigpoint.me.uk" rel="noreferrer noreferrer noreferrer" target="_blank">phil@trigpoint.me.uk</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>Slate is a natural material, quarried from sedimentary
rock, they tend to be very smooth and not overlap too much.
Usually found on older buildings, are rare on modern
buildings unless they are in a conservative area and need to
fit in.<br>
<a href="https://en.m.wikipedia.org/wiki/Slate#/media/File%3ASt_Fagans_Tannery_7.jpg" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank">https://en.m.wikipedia.org/wiki/Slate#/media/File%3ASt_Fagans_Tannery_7.jpg</a><br>
<br>
Tiles are moulded from clay and are designed to lock
together and overlap. Common on more modern buildings.<br>
<a href="https://en.m.wikipedia.org/wiki/Roof_tiles#/media/File%3ARoof-Tile-3149.jpg" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank">https://en.m.wikipedia.org/wiki/Roof_tiles#/media/File%3ARoof-Tile-3149.jpg</a><br>
<br>
Phil (trigpoint)<br>
<br>
<div class="gmail_quote">On 10 March 2023 18:53:09 GMT,
Timothy Noname <<a href="mailto:hervbeof@gmail.com" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank">hervbeof@gmail.com</a>>
wrote:
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="auto">How are slate roof tiles totally
different to roof tiles?
<div dir="auto">They are both manufactured to a
certain size and laid in an overlapping pattern?</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, 10 Mar 2023,
17:19 Philip Barnes, <<a href="mailto:phil@trigpoint.me.uk" rel="noreferrer noreferrer noreferrer noreferrer" target="_blank">phil@trigpoint.me.uk</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On
Fri, 2023-03-10 at 16:01 +0000, Timothy Noname
wrote:<br>
> Slate roof tiles<br>
> roof:material=slate<br>
> Or<br>
> roof:material=roof_tiles<br>
> <br>
> I admit I've used both in the past.<br>
<br>
Tiles are totally different to slates, I would never
consider a slate<br>
to be a tile.<br>
<br>
Other than being used for roofing, they are
different and easily<br>
identified.<br>
<br>
Phil (trigpoint)<br>
<br>
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