Roof ConstructionBy Drew Kelly12-3-2012

Roof Construction Basics Roof construction is the single most

important structure on your home Roofs provide a structure over your

head to keep certain elements away. Help insulate your house. And can add a stylish look to your

house.

Basics Continued Two different categories you put roofs

into Flat and Pitch Flat is where you have any slope that is

less than 10 degrees And pitch is where you have any slope

that is greater than 10 degrees.

Types of Roofs The most common type of roof is a pitch

roof also called traditional roofs There are many types of pitch roofs that

can be constructed Here are some of there finished forms

Different types of roofs Gable Hip Intersecting Shed or lean to

Gable This type of roof is the most common

one used It is simple to make and very cost

effective and good for the economy.

Hipped The hip roof has four sloping sides. It is

the strongest type of roof because it is braced by four hip rafters.

Very similar to the Gable roof, most commonly used in areas with high winds.

Designed to prevent the wind from pulling it off

Intersecting The intersecting roof consists of a gable

and valley, or hip and valley. The valley is formed where the two different sections of the roof meet, generally at a 90° angle.

Shed or Lean to The shed roof, or lean-to, is a roof

having only one slope, or pitch. It is used where large buildings are framed under one roof, where hasty or temporary construction is needed, and where sheds or additions are erected.

Roof Structures There are two main types of structures

for a traditional roof. Single roofs Double roofs

Single roofs Rafters of single roofs do not require any intermediate

support. This type of roof has a number of limitations. It can only be used for small spans. If greater spans are required, larger roof sections would be needed

They can be put into three groups Couple roof – These can be used for building with a clear

span of not greater than 3m and pitches less than 40º. Collar roof – These can be used for buildings with a clear

span not exceeding 4mm. Collar roof – These can be used for buildings with a clear

span not exceeding 4mm.

Double roof A double roof is a roof whose rafters are

at such a length that they require some sort of intermediate support. This support is usually a beam, which is secured under the rafters at the halfway point between the ridge and the wall plate.

Videos http://

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