Roof Weight Distribution

I need to be able to show this to get the inspector to buy in so i ll need formulas with the answer.

Roof weight distribution.

The curt trutrack is an advanced weight distribution system that combines precise weight distribution with integrated sway control. A roof truss is a triangular wood structure that is engineered to hold up much of the weight of the rest of the roof. They do this by means of top chords which are sloping members that extend from the peak of the roof to the top of the exterior walls at the eaves. You can pretty clearly see evidence of this based on the way a roof rack is mounted to the vehicle how the weight is distributed and how well its clamped down.

I an installing a solar array on the roof 24 modules 13 78 sqft each. The top chords are tied together by a horizontal bottom chord which. Weight distribution and mounting points there is a vast difference in quality between roof racks on 4wd s. Roof trusses support a roof s weight by transferring the weight load downward and outward to the building s bearing walls.

My racking system with the modules weigh about 42 lbs per module. A roof is composed mainly of two parts the cladding or external material and the internal support structure which holds it up. Thus as the roof gets steeper the rafter gets longer and the weight of roofing materials increases. The weight of roofing constructions above the truss rafter may be estimated with the calculator below.

Roof structure and load bearing capacity. Actually with snow you don t get more load along the slope of the rafter. A majority of roofs can withstand the weight of solar panels. Load distribution on a roof.

The local ahj has ammended snow loads for the area to 40 psf. Curt trailer weight distribution and sway control products are designed to give you a safer smoother ride providing the confidence to enjoy the journey from start to finish. You get the same load as a flat roof with the same run would get. The straight lengths of wood known as members that roof trusses built with are connected with intersections that distribute the weight evenly down the length of each member.

The weight per 100sq ft kg range is 85 110. None asphalt roll roofing 1 1 lb m ft 2 5 4 kg m 2 asphalt shingle or asphalt fiberglass composite shingle 2 7 lb m ft 2 13 2 kg m 2. This is because as snow falls vertically it spreads itself further along a sloping rafter and so. The amount of weight the internal support structure can carry without the roof collapsing can be described as its load bearing capacity.