Schools have already closed twice this year to facilitate the referendum in March and the local and European elections in June.
The closure of schools across the county so they can be used as polling stations is being criticised.
A number of schools will shut next Friday, as the country votes on the next government.
The National Parents' Council says the system is outdated, and sends the wrong message about the importance of education.
Schools have already closed twice this year to facilitate the referendum in March and the local and European elections in June.