Dry Roofing

Dry Ridge Systems

The next significant component of a dry ridge system sits between the ridges and the tiles of the roof slope.

This part of the system usually includes a ventilated strip that ensures moisture laden air is vented from under the tiles. The interface with the ridges and the tiles can be handled in two ways.

The first method uses plastic inserts following the shape of the tiles, the second uses an adhesive roll which is corrugated and stuck down to the tile surface. Whilst the 'roll' systems are the most affordable, the profile system looks the best and offers an edge when it comes to longevity.

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Verges showing mortar system

Dry Verge installed

Dry Fix Benefits

Allows the natural movement within a roof structure to take place without damaging the ridge and hip fixings.
Provide the means to 'mechanically' fix ridges and hip tiles, greatly reducing the risk of storm damage.
Provide discreet roof space ventilation at the ridge and hip which helps control harmful condensation in the roof space.

Allows the roofer to complete the work safe in the knowledge that rain will not cause mortar to stain the roof or frost to damage the mortar before it has had chance to properly set.

Dry Verge Systems

Dry verge systems help avoid these defects and the need for periodic maintenance of the mortar bedding. For many tiles, special 'cloaked verge' tiles are available which neatly close the gap at the verge.

Alternatively plastic dry verge systems are available which suit most tiles. These are available in single units, ie one piece per tile course, or in continuous lengths. These are attractive and highly functional ways to improving the overall appearance of your roof. The systems are easy-to-use and provide a neat, secure and mortar-less finish at roof verges.

The cost of dry fix v mortar

This is not any easy question to answer as there are many systems on the market, plus a large proportion of the cost of both mortar bedding and dry systems is in the labour.  As a general rule the cost of the dry system per linear metre of ridge or hip will be slightly more than the cost of mortar.