Dimensional Shingles are far more superior to asphalt shingles.
They are constructed from a heavier base that contains multiple layers. These multiple layers, when assembled, make the shingles seem dimensional and thus give the appearance of non-asphalt shingles!
\With the growing popularity of dimensional shingles, they are always available; also, dimensional shingles are very versatile and can fit almost any shape or style roof! Not to mention with their strong construction, they have a much longer life span than that of asphalt shingles.