All the best practice I read says I should be using af1 builders paper under the lead when I renew a valley next week, but half my builders merchants haven’t heard of it, and the other half don’t stock it!! Is there an alternative?
I also had a Quick Look over YouTube vids of valley replacement and didn’t find anyone using it!! I don’t want to cut any corners, but am I creating a rod for my own back by trying to track some down and use it? Any help would be appreciated.
Thanks
Col