Graphical Construction Glossary >> Roofs and roofing. >> Roof Features >> ridge

The apex of two parallel roof surfaces. The highest point. The roof-ridge is a horizontal intersection of the two.

crossed roof rodges

The crossed ridges of England's Salisbury Cathedral.

roofing terms

If the two roof surfaces are not parallel then the intersection will not be horizontal but have a slope and strictly speaking should be called a hip.

It is common to have the roof surfaces at different angles, or at a different pitch, but as long as they are parallel then where the surfaces meet they will form a horizontal or level ridge.

If two walls are slightly out of parallel, say a few inches in the length of a house and a standard roof is sat on them, they will produce a ridge line that is not level. This is to most people vaguely unsettling though they cannot say why. The roofing carpenter of builder should make adjustments to the roof frame to make sure that the ridge-line is level.

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Please Note! The information on this site is offered as a guide only!  When we are talking about areas where building regulations or safety regulations could exist,the information here could be wrong for your area.  It could be out of date!  Regulations breed faster than rabbits!
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