A process whereby a material is caused to form permanent molecular linkages by exposure to chemicals heat pressure and or weathering.
Roof support terms.
Truss is the framed set of rafters that supports the roof of the house.
The slope is from one sidewall to the opposite sidewall.
A waterproofing layer that protects the roof valleys from leaking.
A sloping roof in one plane.
A waterproofing seal installed along the roof s valley line with taktekkernbergen no.
Soffit is the horizontal area under the roof overhang.
With wood shingles or shakes this is the thicker end.
A term used in structural design to design a beam support condition at two points which offers no resistance to rotation at the supports.
Purlins are used to support the decking of a roof.
However they are closed off to give a finished look.
A small tower that pierces a roofline.
Roof truss a frame designed to carry the loads of a roof and it s covering over the full span without intermediate support.
Some of these can support the roof and prevent ridge sagging and wall spreading.
In most common roof styles these are the two slanted beams that hang over the side of a building.
1 a raised member used to support roof penetrations such as skylights mechanical equipment hatches etc.
Don vandervort hometips.
Here is a closer look at common roofing terms.
The butt of a shingle is the end that faces down roof.
This also gives a wide variety of shapes and design for the roof.
Now that you have many of the common roof truss terms down let s talk about overall roofing terms that are good to know.
This provides the roof with immense strength.
A rigid framework as of wooden beams or metal bars which supports a structure such as a roof.
Above the level of the roof surface.
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.
2 a raised roof perimeter relatively low in height.
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.
The top most beams of a roof truss.
The exposed end of a shingle.
Ideal for waterproofing and insulation.
When working on a roof it pays to be familiar with these terms.
Collar ties rafter ties tension beams structural ridge beams.
