Further CorrugatioNs

 First of all, a massive thank you to Mark for suggesting the use of coffee jar lids to impress corrugations into aluminium foil. I'll try it just as soon as I can find some suitable lids.

In the meantime, I've been sorting out the office/workshop to try to separate the things I need to refurbish Flemish Quay and those I need to move forward with the N-gauge projects. And, even, possibly to build something akin to my original APA layout.

Being a member, as you might expect, of a FB group dedicated to corrugated iron, I was aware that different sheet sizes and pitches of corrugation were used for different types of buildings.

I was about to put a pack of Ambis / Eastwell Iron 4mm CI into the Apa Valley box, when I spotted the magic wording "Domestic Pattern" on the label.

Gears clicked. 

It turns out to have about the same pitch as the Ratio N gauge sheet, though the profile isn't quite as good. 

So I think I have my solution for now, though I'll try and get some HO scale sheet as well.

Or rather solutions. I'll use the ratio sheet where the thickness doesn't matter, and I'll use the Redutex and Scalescenes products for non-railway buildings and those in the background.