Roofing Systems and solutions

I have been arguing with other builders and roof experts which roofing system is the most beautiful, They all have different opinions or rather tastes and preferences. This article is inspired by them!

Here is all you need to know about roofing systems and factors to consider when choosing the type of roofing, but before that

The roof is the covering on the uppermost part of a building or shelter which provides protection from animals and weather, notably rain or snow, but also heat, wind and sunlight. Roofing also denotes the framework that supports that covering.

Roof systems and materials generally are divided into

  1.  Low pitched roofs.
  2. High pitched roofs.

-Low pitched roofing includes water impermeable, or weatherproof, types of roof membranes installed on slopes less than or equal to  15°

-High pitched roofing includes water shedding types of roof coverings installed on slopes exceeding  15°

TYPES OF PITCHED ROOFS

Gabled roofing 

The roof slopes around a triangular extension of the end wall. This piece of wall is the gable. 
 
Hipped  Roofing
A  hipped roof, is a type of roof where all sides slope downwards to the walls, usually with a fairly gentle slope. Thus a hipped roof house has no gables or other vertical sides to the roof. 
A square hip roof is shaped like a pyramid.
Shed -ROOFING 
This simple roof has only one slope. It is commonly used on lean-to structures, such as additions. 
Mansard
A modified version of the pitched roof that creates a spacious living area in the roof space. a four-sided gambrel-style hip roof characterized by two slopes on each of its sides with the lower slope, punctured by dormer windows, at a steeper angle than the upper 

 

Low-pitched  roofing 
There are five types of low slope roof membranes or systems. 

  • Built-up roof (BUR) membranes
  • Metal panel roof systems for low-slope applications
  • Polymer-modified bitumen sheet membranes
  • Single-ply membranes
    • Thermoplastic membranes (e.g., PVC, TPO)
    • Thermoset membranes (e.g., EPDM)
  • Spray polyurethane foam-based (SPF) roof systems

Most low-pitched roof membranes have three principal components:

  • Weatherproofing layer or layers — the weatherproofing component is the most important element because it keeps water from entering a roof assembly.
  • Reinforcement — reinforcement adds strength, puncture resistance and dimensional stability to a membrane.
  • Surfacing — surfacing is the component that protects the weatherproofing and reinforcement from sunlight and weather. Some surfacings provide other benefits such as increased fire resistance, improved traffic and hail resistance, and increased solar reflectivity.

With some roof membranes, a component may perform more than one function.

High pitched 

There are divisions of high pitched roof coverings.

  • Asphalt shingles
  • Clay tile and concrete tile
  • Metal roof systems for steep-slope applications
  • Slate
  • Wood shakes and wood shingles
  • Synthetic

Steep-slope roof systems typically are composed of individual pieces or components installed in shingle fashion. Steep-slope roof assemblies typically consist of three primary parts:

  • Roof deck — a roof deck is the structural substrate and usually is a wood-based material such as plywood or oriented strand board (OSB).
  • Underlayment — underlayment provides temporary protection until a roof covering is installed and provides a secondary weatherproofing barrier. Sometimes underlayment is referred to as “felt” or “paper.”
  • Roof covering — the roof covering is the external water shedding material.
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