The Lana house we started off with had a wooden shingle roof which looked great.
After a few years we started to get the inevitable leaks. Upon investigation we found that to replace the shingle would be a bloody fortune and we weren't too sure what to do.
To replace the shingles with anything but shingles would be a real shame and ruin the look of the place.
The answer came from a conversation with the little old man who'd built the house originally 30+ years ago. He's become a great friend and I trust him implicitly.
Given that it's a typical Lana A frame roof there's plenty of room under it so, 100 sheets of corrugated steel later we had a second roof built under the shingles.
There's about a 20cm gap between the steel and the shingles.
They used a few meters of baton as required but most of the steel was screwed straight onto the existing joists.
It's invisible from inside and out, still leak proof 4 years later, reflective and as cheap as chips to do.
2 blokes over 4 days - Thb3,000 plus materials which I can't remember.
That end of the house is noticeably cooler and there seem to be a lot less creatures of the night wondering about.
So, there you go. A bit of innovative thinking from good old Bankeo.