Submerged house Renovation after sufficient drying The architect group called for 19:26 on November 8
Due to Typhoon No. 19 and the subsequent heavy rain, about 15,000 buildings have been damaged in Fukushima Prefecture so far, but the organization created by architects will be remodeled after drying is not enough. As there is a risk of mold, we call attention to dry the construction for at least one month without rushing the construction.
Naoki Tanaka, a first-class architect who is consulting about repairs at home from people affected by the disaster in Date City, Fukushima Prefecture, is calling on the construction not to be urgent in order to reduce mold.
According to Mr. Tanaka, it is difficult to completely remove mold once it has occurred, but it is possible to prevent new generation by thoroughly drying and taking measures before full-scale construction.
Specifically, first check the underfloor and wash away mud.
If the floor is submerged, remove the wet wall and remove the water-absorbing insulation.
After removing the floorboard and disinfecting it with a special disinfectant, the soil and concrete under the floor, and the pillars and walls that serve as the foundation are dried for at least a month using a large fan.
The longer the drying period, the better. The ideal period is about half a year.
In particular, wooden pillars may have water soaked into the core when exposed to water for a long time, and it is necessary to dry them thoroughly.
On the other hand, if you install wallpaper or insulation with moisture, the risk of mold again increases.
In addition, if the wall is removed greatly, the strength of the building will decrease, so it is possible to maintain the strength of the building by bracing the removed part.
However, some contractors seem to have a lack of knowledge about mold risks and correct measures, and architects and other organizations want to consult when renovating.
Flooded houses and mold even in western Japan
Cases of mold occurring in houses that were damaged by flooding continued in the stricken area of heavy rain in western Japan last July.
In some cases, after remodeling, we noticed the occurrence of molds several months after the disaster.
According to the Okayama Prefecture Association of Architects, a total of 51 consultations on molds in housing were received by March, saying, “I do n’t know how to deal with mold and what to do” There is a voice saying "I am in trouble."
It seems that this was caused by insufficient natural drying or the removal of heat-insulating materials that contained water. Okayama Prefectural Architectural Association had at least one floor or pillar to renovate. It calls for drying for months, preferably months, and removing insulation.