Changed WP sticky post class to .wp-sticky

functions.php

@@ -42,6 +42,9 @@
 /** Add Nav Options to Customer */
 require_once( 'library/custom-nav.php' );
 
+/** Change WP's sticky post class */
+require_once( 'library/sticky-posts.php' );
+
 /** If your site requires protocol relative url's for theme assets, uncomment the line below */
 // require_once( 'library/protocol-relative-theme-assets.php' );
 

library/sticky-posts.php

@@ -0,0 +1,19 @@
+<?php
+/**
+ * Change the class for sticky posts to .wp-sticky to avoid conflicts with Foundation's Sticky plugin
+ *
+ * @package WordPress
+ * @subpackage FoundationPress
+ * @since FoundationPress 2.2.0
+ */
+
+if ( ! function_exists( 'foundationpress_sticky_posts' ) ) :
+function foundationpress_sticky_posts( $classes ) {
+	$classes = array_diff($classes, array('sticky'));
+	$classes[] = 'wp-sticky';
+	return $classes;
+}
+add_filter('post_class','foundationpress_sticky_posts');
+
+endif;
+?>