Yes, a Fibreglass Roof can be walked on. Depending on the volume of foot traffic expected for the roof to take, this will determine the weight of matting that should be used in the construction of the roof. A roof with little to no foot traffic expected would suit 1 layer of 450g matting, a moderate level of foot traffic should use 1 layer of 600g matting and a balcony or a roof with regular foot traffic should use 2 layers of 450g matting. A non-slip Topcoat is also highly recommended for areas with foot traffic requirements.