What is the Purpose of a Flat Roof?

The purpose of a flat roof in residential construction was to save on construction costs.  Flat roofing materials are cheaper than other roofing materials such as asphalt shingles, metal roofing, wood shakes, tile roofs, etc.  Flat roofing allows for a variety of options when it comes to making use of the flat area.  Air conditioning units are sometimes placed on flat roofs to avoid being an eye sore on the ground.  Flat roof tops can also be used as roof decks or observation decks.

Here in San Antonio, Texas, flat roofs are fairly common and often need repair due to improper installation.  Flat roofs do not have a slope as a traditional pitched roof, so water can collect or pond in areas of the flat roof.  If the waterproof membrane or flashing wasn’t installed properly on a flat roof, this is where leaks can begin.”  Danny Garcia, owner of Rhino Design Build in San Antonio, Texas.

Why Was Gravel Used on My Flat Roof?

Gravel is used on flat roofs to help weigh down the roofing surface and keep it from lifting during strong winds.  The gravel provides an amount of protection from the sun’s harmful rays that can crack the flat roofing material over time and make it brittle.