January 27, 2024

Why Roof Sarking is Important to Protect Your Roof

Roofer sarking a roof

What is Roof Sarking

Roof sarking, also known as ‘sarking’ or ‘to sark a roof’, is a pliable laminated membrane or material that is installed beneath roof tiles or other types of roofing materials. It is like a ‘second skin’ under your roof and can be installed when building a home, doing house extensions, or during renovations and roof repairs.

Common materials used for roof tile sarking include reflective foil laminates and synthetic breathable membranes The choice of material often depends on factors such as local climate, building codes, and specific roof requirements. 

How Sarking Works  

Sarking is rolled out in sections, either parallel or perpendicular to the eaves with an overlap between each layer. It protects the house frame from weather during construction, and offers ongoing protection from rain, dust, and condensation. It can also improve thermal performance.

More specifically, its functions include:


Roof sarking acts as a waterproof barrier, preventing water from penetrating through the roof and reaching the underlying structure. This is particularly important in regions such as Brisbane where heavy rainfall, storms or where wind-driven rain is a concern.

Condensation Control

Sarking helps to manage condensation within the roof space. By providing a barrier between the roof tiles and the underlying structure, it can reduce the risk of condensation forming on the underside of the roof, which could lead to moisture-related issues such as mould or rot, especially on ceilings.

Thermal Insulation

Some types of roof sarking have thermal insulation properties, contributing to the overall energy efficiency of homes. This can help in maintaining a comfortable indoor temperature and potentially reduce heating and cooling costs.

Dust and Pest Protection

Sarking can act as a barrier against dust and debris, preventing them from entering the roof space. Additionally, it can deter pests, such as insects and rodents, from accessing the interior of the house.

UV Protection

In areas like Brisbane with intense sunlight and heat, certain types of roof sarking may provide UV protection. This can help in prolonging the life of the roofing materials and preventing degradation due to exposure to the sun’s rays.

Retrofitting Roof Tile Sarking

It is also possible to sark sections of a roof if they have been damaged or are leaking.

Choose a quality Roof Sarking Company

It’s essential to use an expert Brisbane roofing company like Gutter and Roof Repairs to sark your roof, to ensure you receive a quality job and so that the manufacturer warranty is followed. A quality roofer will ensure sarking is installed effectively and efficiently, is compatible with your roofing system, and maintains the integrity of your roof.

Contact Gutter and Roof Repairs for expert advice and a fast quote.

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