In order to ensure the long-term sustainability of a roof, ridge and hip lines need to be properly waterproofed to protect the interior against the elements, but the roof also needs to remain well-ventilated in order to prevent damp and mould.
“In South Africa, however, traditional mortar applications often lead to cracked mortar along ridge and hip lines, which requires regular repair work, leaving roofs looking unsightly,” says Willem Grové from Coverland.
“Developed to provide an effective, sustainable and neat application, the Coverland Dry Ridge System offers an alternative to traditional ridge and hip line applications,” he states.
Simply roll and clip
The Coverland Dry Ridge System involves an easy roll-and-clip installation on the ridge and hip line of the roof, which allows for optimum air circulation and maximum protection against the elements. It consists of a Coverland Compact Roll, Ridge Trees, Kro clips and ridge clips.
“The Compact Roll can be stretched to fit any roof profile and its unique, integrated waterproofing and ventilation features, when combined with the Ridge Tree, provide optimum airflow and 100% leak-free performance,” says Grové.
In turn, Ridge Trees allow an optimal alignment of the ridge and hip battens. Attached under the topmost batten and onto the counter batten or rafter, the ridge and hip tree is used to fix the ridge runner. The steel is strong yet pliable, while the holes allow for easy fixing to the ridge batten using screws.
The Kro clips, which are made from corrosion-resistant stainless spring steel, fix cut tiles to the hip structure without the need for drilling into the concrete tile. They are supplied with a 30cm long corrosion-resistant binding wire, which is fixed from the clip to the nail in the support batten (hip batten or hip rafter) and makes it easy to install with only a hammer and nails.
The ridge clips are made from stove-enamelled aluminium and are used to fasten ridge tiles to the ridge and hip batten once the Compact Roll has been applied.
The key to efficiency
“The Compact Roll is what makes this system so efficient,” explains Grové. “Due to its unique, breathable composition, this waterproof, dry-fix roofing solution facilitates a well-ventilated roof and ensures the circulation of fresh air in a roof’s interior. This is important since ventilation prevents damp and mould, which can cause timber trusses to rot and leave the roof permanently damaged. Also, according to the World Health Organisation, the prevalence of damp and mould increases people’s susceptibility to asthma and allergies, therefore a well-ventilated roof contributes to people’s health and wellbeing.”
The unique, patented 4-Layer Assembly® of the Compact Roll ensures:
• Sustainable sealing (butyl-supported aluminium compound).
• High tearing strength (very resistant PET Polyisobutylene compound).
• Maximum waterproofing properties, while allowing ventilation (ventilating holes are covered by a high-performance fleece).
• Extreme adhesion, due to the highly effective CH-bond butyl glue.
“Although more expensive than traditional mortar fixing, the Coverland Dry Ridge system is a long-term solution that is easy to install, aesthetically pleasing and best of all, maintenance-free,” Grové concludes.
For more information, contact Coverland or visit www.coverland.co.za.
Tel: 011 222 7443
Benefits of the Coverland Dry Ridge system:
• Storm- and weatherproof.
• Ventilation prevents damp and mould.
• Installed in one third of the time of traditional mortar ridge applications.
• No cracking or leaking typically attributed to mortar applications.
• Quick, easy installation.