Roof Weight Allowed

Extremely difficult to find a leak in this system since the membrane is well hidden.

Roof weight allowed. Roof structure and load bearing capacity. A clay tiled roof may have a dead load. Adds a lot of weight to the roof system typically 10 15 pounds per square feet. What weight can the rv roof handle.

Ballast stone traps a lot of dirt making patching difficult. If the bottom chord of a roof truss functions as a floor joist such as in an attic room it carries a live load that also varies by use but a typical live floor load for a residential space is about 40 pounds per square foot. A normal human average weight of around 250 lbs to 280 lbs should be the limit for the roof. Ballast stone fractures and gets sharper over time which can puncture the membrane.

But on an average the rv roof should be able to handle one persons weight easily. We often find the car will have a lower weight limit than the roof bars so it s important to check and never exceed whichever is the lower of the two. Obviously the answer to this question depends on the condition of the rv roof at that time. A roof is composed mainly of two parts the cladding or external material and the internal support structure which holds it up.

The amount of weight the internal support structure can carry without the roof collapsing can be described as its load bearing capacity. The load increases with the use of heavier roofing material. The dead load of a typical asphalt shingled wood framed roof is about 15 pounds per square foot.