Rename the font family in your CSS, so instead of defining the font family like this -
@font-face {
font-family: 'Roboto';
src: url('../fonts/roboto.eot');
src: url('../fonts/roboto.woff') format('woff'),
url('../fonts/roboto.ttf') format('truetype'),
url('../fonts/roboto.svg') format('svg');
font-weight: normal;
}
Which will use system font if Roboto is installed, Change it to something like this -
@font-face {
font-family: 'Roboto_web'; //notice the name here
src: url('../fonts/roboto.eot');
src: url('../fonts/roboto.woff') format('woff'),
url('../fonts/roboto.ttf') format('truetype'),
url('../fonts/roboto.svg') format('svg');
font-weight: normal;
}
So the font Roboto_web is something which is not installed in your system so it will always use web font. This way you will not have to uninstall or disable it from system.
And in the CSS you can use it like this-
.sample_class{font-family:"Roboto_web"}