Not the weather.
Startling discovery- we had no insulation in the roof.
None. Nada. Zip.
Our ceilings are plywood-weight wood panels. They are slotted together in a very groovy (haha!) puzzle kind of way.
Above the ceiling is a whole grid system of beams and trusses and supports. Quite reassuringly sturdy and beautifully made from real trees with all the undulations of real-tree wood.
And the main beam in the house has some beautiful brush-drawn calligraphy written the length of it that K assures me is some kind of blessing and not 'Property of the railway. Fine for removal, ¥500,000' or somesuch.
But between these beautiful beams and the plywood thickness underlayer on the rooving tiles? Nothing.
A whole lot of air and some dust (not near as much dust as the money shot on gekiteki before and after and as I have never vacuumed up there I'm now suspicious about those walls of dust they always show...)
Air, dust and sunlight.
Yup. There are little gaps and crannies in the roof that are open to the elements. This is apparently so the house can breathe. Pah. When it getts too cold I can't breathe so the house can just deal I reckon!
And so this morning K and I spent our time in the roof space putting down glass fibre bats with a R rating of 2. Yup, I now speak in R ratings. But not very well. K was trying in vain to explain to me why we couldn't get a super-duper R rating of 4 (most scales only go to 3.5) by just doubling up our R2 rated insulation batts. Makes sense to me- 2+2=4! I was getting as bamboozled as when he tried to explain that UV ratings on sunscreen are not a matter of simple arithmetic either and gave up. Oh well, even one layer is still a whole heap better than plywood, dust, air and sunshine, right???
It was, perhaps unsurprisingly, very difficult to take pictures inside the roof crawl space but I had to try so:
You can almost see the curve on the main beam there.
Pink batts going in:
It's getting warmer! I'm getting excited! We're gonna be cosy!