Dry Ridge

BS5534 Code of Practice: Slating and tiling for pitched roofs and vertical cladding

Dry Ridge System – with hip trays

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. 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.

The benefits of a dry ridge system are as follows:

Will not blow off – There are many things that can affect the lifespan or bond of mortar bonded ridge tiles. Dry ridge however (as long as it has been installed correctly) will not blow off under normal conditions, greatly reducing the risk from storm damage. No more ridge tiles landing on the floor, car or conservatory after high winds.

Maintenance – Unlike mortar there is nothing to maintain, mortar mixes will degrade over time, sometimes prematurely. Ventilation – Dry ridge provides discreet ventilation of the roof space and helps to stop any harmful build-up of condensation.

Movement– Believe it or not roofs move. This can be through vibration (near main roads or train tracks) or through natural expansion and contraction. Dry ridge allows for all types of movement.

Price – £65 per metre: Cost of a dry hip system to a semi-detached property is about £910 to £975 assuming it’s a fairly standard run of two 6 metre runs for the hips and a 2/3 metre run across the top, using your existing ridges. New ridges = £190 – £210, Skip £70 – £80
Total: £1,170 to £1,265. Additional for unusual shapes, unusual steepness or conservatories, scaffold may be needed. If scaffolding is necessary obviously this will increase your price.

As of 1 March 2015, the new standard is mandatory and any roof started from this date forward must be installed to the new standard. The two main reasons for its revision are the rise in extreme weather in Britain and to align British standards with European standards. Changes in building practices and better understanding of how roofs perform have also led to the update.

It is no longer sufficient to use mortar as the only means of fixing tiles and fittings to roofs. This is to prevent the risk of roof leakage and subsequent repair work should the mortar fail and use modern dry-fix ridge/hip solutions instead.
Your roof is the most important part of your property and it is vital that repairs to your roof are carried out in order to protect your home. Midwest Roofing is totally committed to providing clients with a quality driven service that reflects our good workmanship skills, ethical working practices, excellent guarantees and fair prices.

Midwest Roofing undertakes large contracts such as schools and government buildings as well as bespoke residential contracts. Please feel free to get in touch with one of the Midwest Roofing team for all roofing requirements.

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Midwest Roofing.co.uk, providing roofing services for domestic and commercial customers throughout the West Midlands:

Aldridge – Bilston – Birmingham – Bloxwich – Brierley Hill – Brownhills – Dudley – Halesowen – Oldbury – Rowley Regis – Smethwick – Solihull – Stourbridge – Sutton Coldfield – Tipton – Walsall – Wednesfield – Wednesbury – West Bromwich – Willenhall – Wolverhampton

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