Roofing Using 2x4

For roofs that won t experience heavy snow loads a gable roof can span up to 22 with 2 4 rafters.

Roofing using 2x4.

I put 2 2x4 joist about. The metal roof purlins spacing must be done correctly within narrow tolerances. Front and sides will sit on deck on a 2x4 wall with studs 24 oc and screened in. 60 pieces 2x4 x12 feet boards.

One foot overhang so could say 11x16. It s made 11 winters here and look like the day i finished it. Measure each section of the roof from side to side parallel to the line of the fascia board. For this example a section of roof is 20 feet wide.

The width of metal panels will determine the rafter spacing. 1 3 of the way from each in to keep it from spreading from snow load. 2x4 x8 feet boards. Using the aggregate area of these simple shapes can yield a more accurate roof area to be used with the roofing material calculator.

The wider the roofing panels the greater spacing distance you should put. 2 pieces 12 feet aluminum. Roof will be roughly 12 x 16. 2 pieces 2x4 x10 feet boards pressure treated.

Built on 4 12 pitch roof with 1 2 ply decking and shingles. If you have a simple gable shed roof then using 2 4 rafters makes more sense unless you have a very large shed. 5 pieces 2x4 x12 feet boards pressure treated. There is a chance of damaging roofing sheets if you are failed to do so.

Rafters to 2x4 with joist hangers. Without even running the calculations i would say there is a good chance the 2 4 purlins will not make the deflection criteria required for a roof framing member supporting steel. For roofs that will experience heavy snow or wind and will span the same distance use 2 6 rafters. A rough 2x4 had a lot more strength that a finished one.

Floor joist on 16 inch centers. Access the roof using an extension ladder.