



I use aluminium nails when doing a slate roof, they are a bit easier on a slate ripper and I'm glad I did as when FIL did the ridge tiles on my garage roof for me he managing to crack a couple of tiles in the process.I also used copper nails which is the traditional way but many just use galv now due to the cost but the reality is it made maybe £70 difference on my 85m2 roof
because you start to understand issues on building that wouldn't have happened if someone had used Lime. One of the classics I see is what I think they called squalling, it's where you see a group of bricks in an old wall/building where the faces have broken away. It's mostly caused when someone has repointed a soft brick/lime mortar wall with cement. The bricks absorb water but the cement stops it soaking away and then when there is a frost it splits the face of the brick off. You see this a lot in town where there are lots of very old red brick properties. Driving through Worcester you see loads of it.@julianf
If you and your partner fancy an interesting day out I did my Introduction to Lime course with these guys.....



