(OOC: It looks like the only ropes people have are 50 feet. You could just have the Rope hanging 10 feet up without a problem, though, since any fall of less than that is negligible or splice two 50s together with Use Rope)
*After figuring out about the rope, Blunt climbs upward, occasionally leaning back against the other wall or bouncing back and forth, repelling off the walls as he climbs upwards. At first, he stumbles less than 10 feet up, but he tumbles and is unharmed. After this, he heads up 22.5 feet, pauses for a moment, heads up a bit more to a total 30 feet, nearly loses his grip several times, heads up to 37.5 feet and nearly falls again, makes it nearly to the top and then slips and begins to fall, grabbing out and catching the top of the building just in the nick of time. He pulls himself over the lip and onto the warehouse roof.*
(OOC: Wow, IC loves to give you 4, 5, and 6. It hates you on an institutional level!)