Johnson-level-tool-mfg RAS-1 Manual de usuario descargar pdf (Pagina 6)

TYPES OF RAFTERS

COMMON RAFTER:Arafterthatrunsperpendicular(90°)

from the wall plate to the roof ridge when looking straight

down at the roof. When looking from the side, its length

formsthediagonalleg(orhypotenuse)ofarighttriangle

that has its vertical leg equal to the rise and its horizontal leg

equaltotherun(seeFigures1,3and8).

VALLEY RAFTER: A rafter that runs from the wall plate to

theroofridgeattheintersectionofthegableextensionwith

themainroof(seeFigures1,8,12and13).

VALLEY JACK RAFTER: A rafter that runs from a valley rafter

totheroofridge,90°fromtheroofridge(seeFigures1,8

and 15).

HIP RAFTER: A rafter that runs diagonally from the top of

the wall plate to the roof ridge, so as to form an outside

corneroftheroof(seeFigures1,8,9and10).

HIP JACK RAFTER: A rafter that runs from the top of the

wallplatetoahiprafterat90°tothewallplate(seeFigures

1,8and14).

CRIPPLE JACK RAFTER: A rafter that runs from a hip rafter

toavalleyrafter,perpendiculartotheroofridge(seeFigures

1and8).

DORMER RAFTER: A rafter which sets on top of the main

roof without cutting into it, thus causing the main roof not to

weaken.Forexample,whenremodelingorwhensolarpanels

areadded(seeFigure1).

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Johnson-level-tool-mfg RAS-1 Manual de usuario Pagina 6