This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams.
Roof support terms.
When working on a roof it pays to be familiar with these terms.
A sloping roof in one plane.
Some of these can support the roof and prevent ridge sagging and wall spreading.
Truss is the framed set of rafters that supports the roof of the house.
With wood shingles or shakes this is the thicker end.
1 a raised member used to support roof penetrations such as skylights mechanical equipment hatches etc.
Purlins are used to support the decking of a roof.
This provides the roof with immense strength.
Don vandervort hometips.
A rigid framework as of wooden beams or metal bars which supports a structure such as a roof.
The top most beams of a roof truss.
A turret is usually cylindrical and is topped by a conical roof.
The butt of a shingle is the end that faces down roof.
Here is a closer look at common roofing terms.
It is left open past the main walls of the house.
2 a raised roof perimeter relatively low in height.
In most common roof styles these are the two slanted beams that hang over the side of a building.
Above the level of the roof surface.
A process whereby a material is caused to form permanent molecular linkages by exposure to chemicals heat pressure and or weathering.
Soffit is the horizontal area under the roof overhang.
The exposed end of a shingle.
Collar ties rafter ties tension beams structural ridge beams.
A term used in structural design to design a beam support condition at two points which offers no resistance to rotation at the supports.
The slope is from one sidewall to the opposite sidewall.
A small tower that pierces a roofline.
Sarking is a strong moisture proof reflective metallic building paper which is placed over the roof battens purlins and installed beneath the external roof covering.
One of a series of diagonal members of the truss that meet at the apex in order to support the roof deck and its loads.
However they are closed off to give a finished look.
A waterproofing seal installed along the roof s valley line with taktekkernbergen no.
Now that you have many of the common roof truss terms down let s talk about overall roofing terms that are good to know.
Roof truss a frame designed to carry the loads of a roof and it s covering over the full span without intermediate support.
