My pup has the Goshen lift system and a bike rack on the roof. Would it be safe to put a couple armloads of wood on the rack on each side as long as the weight is even and strap it down? My tires and axle can take the weight, just not sure if it would be healthy for the roof. The wood would be on the bike rack, not the roof itself, and I wouldn't lift the roof with the wood on there, just transport it. Your thoughts?