Because of cohesion and transpiration, water is able to move against the flow of gravity in plants. The attraction of water to other water molecules, or cohesion, allows water to pull other water molecules up through the xylem.
Room addition cost about $210 per sq.foot and if there is a bathroom in addition you should add $5,000 in average and if there is a kitchen in addition you should add $10,000 in average to total price of $210 per sq.foot x sq. footage.
According to an annual construction cost survey by Remodeling Magazine, a mid-range remodel of a 5x7-foot bathroom averages $14,109-$18,864; for an upscale expansion of a 5x7 bathroom to 9x9-feet within the existing house footprint, costs run $46,865-$59,456. These are averages; actual costs may be higher or lower.