What is the repair of the ancient windows and the walls?
If the mortar, you can see in Mr. Luo Zhewen "Ancient Chinese Architecture" Shanghai Ancient Books Publishing House 2001, recorded the wall crack mortar configuration method, I checked the book, take pictures to you.
Note: the ancient building maintenance to consider the reversible, not free to use chemical potions to fill, if the damage can not make up, you and I will be guilty.
Epoxy resin is better to buy, filling, squeeze can be, leak-proof effect is good, non-toxic harmless, but the bearing capacity is poor, not too beautiful;
Wooden windows and walls of the gap, depending on its size, available epoxy resin (small) or mortar perfusion repair;