The proportion of indoor dampness due to water damage by
giant tsunami according the flooding height is presented in Fig. 4.
Each factors of visible vapour condensation, mould growth,
perception of odour and feeling dampness was significantly associated
with flooding height. In each factors related to dampness, the
percentage of flood-damaged homes flooding above the level of the
room floor is large and approximately 60% of respondents reporting
indoor dampness was flooded above the level of the room floor.
Fig. 5 shows the outside and inside views after giant tsunami
disaster in a flood-damaged home flooding above the level of the
room floor around Sendai city. In Fig. 5(a), the flooding water height
seemed to be about 1.5m from the grand level because of the white
horizontal line put on the outside wall. In Fig. 5(b), the mould
growth was observed on the surface of walls in a corridor. The range
of visible mould growth in height direction was expected to indicate
the flooding height of approximately 1.0 m above the floor
level. The respondents of flood-damaged homes may be included in
a lot of water damaged homes related to indoor dampness as
shown in Fig. 5(b).