Roof Material History

A roof is part of the building envelope.

Roof material history.

A roof is the top covering of a building including all materials and constructions necessary to support it on the walls of the building or on uprights providing protection against rain snow sunlight extremes of temperature and wind. Today s versatile roof materials are a legacy of the development of roofs throughout history and cultures. The characteristics of a roof are dependent upon the purpose of the building that it covers the available roofing. The roof s necessity has bred its ubiquity and by extension fostered a strong market for roofing materials ranging in performance and physical characteristics.

These roofs are installed as thin sheet materials 0 030 30 mils to 0 060 inches 60 mils thick and are applied to the roof in a single layer. Take a look back at how roofing has evolved. The roof structure is also likely to be the oldest and least altered part of a historic building which can yield important information about its age and significance. Roofing material is the outermost layer on the roof of a building sometimes self supporting but generally supported by an underlying structure.

The fact that so many historic roofs have survived for centuries is a testimony to the design materials and skills used on traditional roofs even though few would fully. Most of the changes in roofing materials have developed in the last 200 years. Although people generally still use the most available materials for the region. Wood and metal are used in the southern part of north america slate in the northeast wood in the midwest and tile in the southwestern part of north america.

The simplest is the lean to or shed which has only one slope a roof with two slopes that form an a or triangle is called a gable or pitched roof this type of roof was used as early as the temples of ancient greece and has been a staple of domestic architecture in northern europe and the americas for many centuries. A building s roofing material provides shelter from the natural elements. Now in the 21st century the quality and durability of building materials is becoming increasingly important for the value minded home owner that can appreciate the superiority of clay roofing products. Sloping roofs come in many different varieties.

But if the roof is readily visible the alternative material should match as closely as possible the scale texture and coloration of the historic roofing material. Asphalt shingles or ceramic tiles are common substitute materials intended to duplicate the appearance of wood shingles slates or tiles. Europe has a long lasting clay roof tile history that is highly visible if one looks at the roofs of major european cities.