Hi, @rafaeltsantes!
I have a hack that will help you achieve exactly what you want. First of all I encourage you to use child theme (https://github.com/ivanfonin/eno-child/). When you have child theme installed, then copy from the main theme directory file singular.php to you child theme directory and open to modify it.
All you need to do is just replace this line:
<main id="site-content" role="main">
with this one:
<main id="site-content" role="main" data-uk-height-viewport="expand: 1">
Sorry for late response, somehow website didn’t notified me, that there is a new question here.