Stopverf

The windows. Again. The windows themselves are made of wood, and with an interesting idea in mind. They are sort-of double glazed. Not manufactured double glazing with a special insulating gas and coatings, but simply two single panes of regular glass, spaced at 2,5 cm in a wooden frame:

So what is the problem THIS TIME?! I hear you ask.

Well, the problem is:
a) the glass is mounted with rounded triangular wooden slats, and nothing in between the slats and the glass, or between the slats and the wooden frame, so when there is a lot of rain they leak water to the space in between the glass panes.
b) the glass is set into the frame using blobs of silicone, which has dried and hardened. That makes it impossible to remove the glass without breaking the glass. The wood between the panes is not treated, and when it is damp the windows do fog up a bit. Also, there's a bit of tarnish on the inside of the glass, that is impossible to access for wiping away.

See where is has been wet?

Here's ample use of silicone to mount the glass.


So, what engineer Jansen has been up to the past three days is:
1. remove all wooden slats
2a. repair broken slats with PU glue
2b. sand and oil the slats
3. apply a layer of stopverf ("putty") in between the slats and the glass, and between the slats and the wooden frame
4. mount the lats with 2x16 mm screws, in sunken holes in the wood.

Stopverf/putty is unknown in Spain. They try to sell you silicone instead.
"Does it harden?"
"Oh yes, very hard!"
"Then I don't want this."

Stopverf is actually a very nice product. It's simply made of linseed-oil and chalk, and will last 100 years. It very slowly hardens, but never gets so hard you cannot remove it to replace the glass. And it's all natural, you can knead it with your hands, and won't harm you. It smells nice too, if you like linseed oil. Ordered it online from Germany. The chalk is from Garmisch Partenkirchen! (Finest chalk in the whole world!)

Awaiting rain!

And no, b) has not been addressed.