So my garage door is starting to split and peel after about 5 years. I have no idea what it was originally treated with - see photo - it looks like outdoor varnish to me. I assume that I need to sand & revarnish.
I could really do with some advice as to what was originally used and what colour it was, so that I can redo it?
I could really do with some advice as to what was originally used and what colour it was, so that I can redo it?