Pop-Top or Pop-UpSince these off road caravans are lower in height and are generally lighter than full off road caravans, they provide the tow vehicle with better fuel economy and assist in easier and safer towing. These caravans are built along the same lines as a full or standard caravan except that the roof can be raised and lowered. To allow the roof to be raised and lowered whilst still providing interior protection, a 300 to 400mm gusset, which is typically made of canvas or vinyl is used. This canvas or vinyl skirting ensures a waterproof and windproof seal and usually has zippered sections with flyscreens that allow airflow through the caravan. Pop-top off road caravans may be lighter and have a lower centre of gravity than full off road caravans but at the end of the day, it’s near impossible to build the framework as strong as an off road caravan with a solid roof.