The exterior of a Bend house caught fire early Friday, but working smoke alarms didn’t detect the blaze.

At 3:13 a.m., Bend Fire Department responded to a fire on Silver Sage off of Benham Road in southeast Bend, according to a news release from the fire department. Because the fire was on the exterior of the home, the alarms did not sound. Someone inside the house woke up to the fire and roused the other four people inside to evacuate. They then called 911. When fire crews arrived, the fire was burning the exterior of the house and spreading to the back patio into the wall, according to the news release.

Improper disposal of ash from a warming fire Thursday night sparked the fire, the fire department said. The ash was placed in a plastic bucket against the house. Bend Fire Department reminds residents to be careful with ash disposal, whether from a wood stove or campfire; ash can hold heat for days.

The department estimated the value of the two-story house to be $125,000, and losses to be $25,000. Red Cross assisted the people affected by the fire.