There are two methods for fixing ridge caps to your roof: traditional wet mortar and the dry fixed system. Although wet mortar has long been used in residential construction to apply tiles and roof flashing, the dry fixed system is increasing in popularity in Australia. So, what are the differences between these two methods, and what are the advantages of a dry fixed installation over wet mortar?
Problems with mortar
When initially applied to a roof, wet mortar will provide a waterproof seal that keeps out birds and other pests. However, over time it will deteriorate due to weathering and the natural movement of the building, with cracks potentially appearing in the mortar. When cracks occur in the seal, moisture can enter the roof, leading to the need for major repointing work to be undertaken. In addition, wet mortar can’t be applied in rain as excessive water can weaken the mix, which could cause delays in tiling a roof.
Dry fixed system
The dry fixed system was developed to overcome the above disadvantages. With the RapidRidge Dry Fixed Roofing System, a UV stabilised ridge flashing is applied over the ridge and fixed to the tiles with butyl strips. The tiles are securely fixed to the roof with specially designed clips.
More durable than mortar, a dry fixed roof will withstand high winds, reducing the risk of storm damage, as well as being more flexible, allowing for any movement of the building. Application of the dry fixed system only takes half the time of mortar, being a straight-forward and hassle-free installation that can be administered under most weather conditions.
Using RapidRidge to secure your ridge caps, also provides the opportunity for greater ventilation of the roof. The RapidRidge with Ventilation option incorporates all the benefits of a Dry Fixed Roof, but also facilitates a natural cooling passive system across the whole roof. By having an open ridge at the highest point of the roof, hot air can be released without transferring its heat into the living space of the house.
Find out more
If you are interested in finding out more about how RapidRidge is a quicker, more flexible and longer-lasting system to tile a roof, get in touch today. Call us on 02 9666 1069 or email on firstname.lastname@example.org