At the home of Vietnamese farmer Nguyen Thi Muon, there is a mark on a window that stands 1.7m high.
Her husband, Mr Huynh Trong Phuc, put it there as a reminder of a 1999 flood when their entire village drowned under water in a matter of an hour. The mark is above his head.
It does not need to be breached for disaster to come calling.
Every year from August to November, people living along the coast of Vietnam's central Hue province pray their homes will not be blown or washed away during the typhoon season.
And the storms, locals say, seem to be getting stronger, the rainfall heavier and the waves higher, surging far inland and washing away sea walls, homes and other buildings.
Vietnam is ranked fifth in the 10 countries most affected by climate change in the Germanwatch Global Climate Risk Index 2018.
Typhoon season can be deadly and costly, draining family finances each time a house or shop is damaged or destroyed.
"In the typhoon season, seawater rises up to our house. Water floods the floor, strong winds shake or blow the roof away. My family has to evacuate to our relatives' places," says Mrs Muon, 58, who lives in Phu Loc district, about 50km from Hue City in Hue province.
She is describing what she calls "the norm" of living in one of the most storm-affected areas along Hue province's 128km coastline.
That norm, though, is about to change for the couple and thousands of others in Vietnam under a programme to build storm-proof housing. The aim is to save lives and break the cycle of poverty that is reinforced by repeated storms.
HELPING COMMUNITIES ADAPT
It is part of broader global efforts to help communities, rich and poor, adapt to increasingly extreme weather and rising sea levels.