Use gaps between deck boards to achieve drainage. But most decks need and can achieve spacing between the deck boards for drainage. As discussed in Best Practices Guide to Residential Construction: 'When securing the decking, it is important to leave adequate spacing between the boards for water to drain.
A Geofence is a virtual perimeter on a geographic area using a location-based service, so that when the geofencing device enters or exits the area a notification is generated. The notification can contain information about the location of the device and might be sent to a mobile telephone or an email account.
Limitations of Geofencing. Usually, location-based service devices trigger the geofence notification when they have already crossed it. Notifications are usually not in real time so alerts that offer information about a trespassing incident or vehicle theft may not be the most reliable tracking individuals or vehicles. geofence sends a notification of a location-based service device if they are entering or leaving a particular geofence. The notification can be received by a range of location-based service device like a laptop or a mobile phone.