diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 330a66d..b35e977 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1,4 +1,14 @@
 module ApplicationHelper
-  
+  def hide_ads?
+    return false unless controller_name == "schools"
+    return false unless %w[show edit new].include?(action_name)
 
+    user_signed_in? || school_permission_key_present?
+  end
+
+  def school_permission_key_present?
+    @school_permission_key.present? ||
+      params[:school_permission_key].present? ||
+      params.dig(:school, :school_permission_key).present?
+  end
 end
diff --git a/app/views/layouts/application.html.erb b/app/views/layouts/application.html.erb
index 5f2f651..ee86479 100644
--- a/app/views/layouts/application.html.erb
+++ b/app/views/layouts/application.html.erb
@@ -36,7 +36,11 @@
 
                   <div id="page-content">
                     <div class="row">
-                      <div class="col-md-12"><%= render 'layouts/underheader' %></div>
+                      <div class="col-md-12">
+                        <% unless hide_ads? %>
+                          <%= render 'layouts/underheader' %>
+                        <% end %>
+                      </div>
                     </div>
                     <div class="row no-margin">
                         <div class="col-md-12" style="padding-left: 2%;">
@@ -58,4 +62,3 @@
         </body>
     <% end %>
 </html>
-