Ms Kenny, who has worked at the school for four years, said there were challenges in her role, but the results were rewarding.
"Support chaplaincy is a different role to in-school chaplaincy, with different expectations and outcomes," she said.
"My role is to support students, families and staff. I work in a team and together we work toward more resilient responses in students through pastoral care of those students, offering at times, support to families.
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The school was recently granted funding to increase Ms Kenny's hours.
Education Minister Peter Collier last month said $2.7 million would be provided to an extra 179 public schools that missed out on the Federal Government's reduced chaplaincy funding this year.
Wembley Downs principal Doug Cook said it was important to have a chaplain.
"Teachers are not always able to provide the concentrated pastoral care that these children require," he said.
"The provision of a school chaplain provides opportunities for these children to receive greater support."
Mr Cook said if the opportunity to have a chaplain five days a week came up he would "grasp it with both hands".
"The greater the support we are able to offer, the greater the chance they will have to gain the knowledge and skills necessary to thrive as adults," he said.
YouthCARE chief executive Stanley Jeyaraj welcomed the funding news.
"This support helps students achieve their potential, both academically and in their social and family lives," he said.