Dry ridge refers to a method of mechanically fixing ridge tiles or hip ridge tiles to a roof without the use of traditional sand and cement mortar. 

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Dry ridge, rather than relying on mortar for a bond, instead employs a dry fix system that typically uses screws – often stainless steel – to attach clamps between the joints of every ridge tile, clamping them to the roof. Beneath these screws are waterproof unions that catch any small amount of direct rainfall and disperse it sideways back onto the roof itself.

In addition to being maintenance free, dry fix ridge and hip systems also provide ventilation that is able to contribute to the requirements of BS 5250, the code of practice for the control of condensation.