Plate glass production method, plate glass, and laminated glass production method

A sheet glass formed in a rectangular shape,

• wherein the sheet glass has a first principal surface and a second principal surface, at least the first principal surface being formed as a convex surface,
• wherein the convex surface has two long sides, and a segment passing through the center of gravity of the convex surface and connecting the two long sides at the shortest distance such that intersection points lie at intersections between the two long sides and the segment, wherein when the sheet glass is placed on a horizontal place, a first point is one of the intersection points and lies at a smaller one of the thicknesses of the sheet glass in the vertical direction while a second point lies on the convex surface at a position of the segment that is apart from the first point by ⅖ of the length of the segment,
• wherein there is a straight line connecting between a point of the convex surface where the thickness of the sheet glass in the vertical direction is maximum between the first point and the second point, and a point on the convex surface where the thicknesses of the sheet glass in the vertical direction is minimum between the first point and the second point,
• wherein the straight line forms an angle of from 0.005 deg. to 0.1 deg. with the horizontal, and
• at least one of the first and second principal surfaces has a maximum height Rz of at most 0.3 μm in accordance with JIS B 0601-2001 in a roughness curve having a reference length of 25 mm.