North Wall

Renée Forsell

The wall is built in op. incertum and consists of limestone, cruma and lava stones and some grey and yellow tufa. The uppermost part is reconstructed and the lowermost part is not visible due to the bench that has been built in front of it.
The mortar in the lowest part is grey. However, in the predominant part of the wall there is a yellowish pozzolana mortar, tempered with large pieces of lava, lime and cruma. The mortar covers most of he stones. Modern mortar covers the stones in three areas, one is located along the W corner, the second in the upper middle part. The last is located in the W part of the wall and is part of the reconstructed uppermost part.
There are a number of holes in the wall. In the upmost W part there are three square beam holes at the height of 3.65m. Two were covered with mortar on the inside while the third is damaged and no longer has its original shape. These were probably part of a roof construction. There might have been yet another hole, now filled in, between the second and third beam hole. Judging from the distance between the beam holes, it does not fit in and so is probably not a man made hole but more likely made by a stone that has fallen out. Further down on the wall, at the height of 3.45m there are four holes more or less on the same level, smaller than the beam holes above. These holes correspond with the holes in the E wall and might have been part of the same protection roof construction. Yet further down there are two smaller rounded holes at different levels, the first in the centre of the wall c 40 cm down f rom the others and the second in the E part c. 0.50m down. Three more holes square in shape are placed another c. 0.75m down the wall and are probably marks of a scaffold. A final hole, probably a missing stone was located in he middle of the wall just above the bench. It was filled in during the restoration 2010/11.
There are no remains of wall plaster left on the wall.