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How to install sarking in the existing roof?

Here you will know everything about how to install sarking in existing roof for metal and tiled Roofs. With the help of our expert roof plumbing team, you will also know the importance of roof sharking and the complete installation process

Understand the importance of sarking

If you are a building expert you might know the importance of roof sarking during the construction of a building, but a normal person can be completely unaware of its benefits.

Sarking is installed while constructing a roof and is basically a sheet or a membrane that acts as a protective layer for your building. The importance of sarking can be explained as follows:

how-to-install-sarking-in-existing-roof
how to install sarking in existing roof
  • It lies beneath the battens and protects your property from severe weather conditions as thunderstorms or heavy rainfall. It also ensures that your ceiling remains free from moisture, thus increasing its longevity.
  • It makes your home thermally efficient by maintaining room temperature. It protects you from the scorching heat in summer and also ensures that your room remains sufficiently warm during winter.
  • It acts as an effective noise barrier against external noise that transmits through the roof.

Understanding how to install sarking in the existing roof is important especially if you are planning to get one for your roof. You can also contact a building roof expert near you to get the job done. Experienced experts provide good solutions for those who are looking to change their existing roof design.

Steps involved in the installation of sarking

Knowing how to install sarking in an existing roof is vital. The installation steps are explained as follows:

  1. You can contact a trusted sarking supplier near you and ask him to use the best and long-lasting materials for your property.
  2. Get the exact dimensions of your roof, it will give you an idea about the number of sheets you need to buy and what should be the length of each sheet.
  3. Remove the ridge capping in order to detach the clips and tiles.
  4. Disengage the clips that are responsible for holding the tiles together.  Check whether the clips are in fine condition; if not then get those replaced with better ones.
  5. Remove the roof battens to layout the sarking sheets on the entire roof top.
  6. Then comes the most important step, you need to ensure that the sarking sheets have been placed in a proper manner and whether all parts of the roof have been covered or not. For precision, you can use a nail gun to attach those sheets with the rafters.
  7. Keep the battens back in place after having completed the installation of the sarking. Then place the roof tiles back so that the entire roof surface gets covered. After that rejoin the ridge capping to complete the entire process.
  8. Don’t forget to check whether all the components are properly positioned or not.
  9. You may preserve the tools and equipment in a safe place so that you can use them if any need arises in the future.

Here is how to install sarking under a metal roof

how to install sarking under metal roof – Sarking is preferred in buildings that have metal roofs because it has several advantages. Humid air contains moisture that condenses on roof tops whenever a temperature difference is created between the surface of the roof and the surroundings. This condensate accumulates onto ceiling boards and decomposes the material. The presence of sarking prevents the ceiling from getting damaged by moisture deposition and also acts as a safeguard against heavy rainfall.

While the installation procedure is the same as in the case of an existing roof, building experts generally believe that for metal roofs, sarkings can be laid side by side with eaves and can be fastened with battens so that the water that accumulates can flow down easily. The sarking can also be placed from the ridge to the gutter and there are different steps that are involved in its installation.

  • To provide sealing and prevent water leakage through the roof, experts usually advise the people to fasten the vertical overlap with the roll joins.
  • To allow the water to move into the gutter and thus promote easy drainage, the sarking should be sagging.
  • To shut all the cavities and discontinuities and prevent moisture, it is recommended by professionals to lap all join up to a few millimeters.
  • Metals have more thermal conductivity as compared to tiles. Hence it’s also important to choose the sarking material keeping that consideration in mind.

Let’s understand how to install sarking in existing tile roof

It is generally recommended by professionals to install sarking underneath tiled roofs. The installation steps are almost the same as that of an existing roof.

  • Firstly it’s important to acquire the best materials and equipment for efficient performance.
  • Find out the length and width of your roof and buy the sarking sheets as per the requirements.
  • Remove the ridge capping so that the other components can be disengaged easily.
  • Open the clips which support the tiles one by one. Check whether there have been any cracks in the clips and replace the ones that have been subjected to excess damage.
  • Pull apart the battens so that the sarking membranes can be laid underneath.
  • Place the sarkings appropriately and make sure that no portion of the roof is left uncovered. You may also attach them to the rafters with proper fasteners.
  • Place the battens back at their positions once the sarking sheets have been placed.
  • Then place the roof tiles and finally join them using the ridge capping.
  • Lastly, ensure that all the components have been assembled properly.

While working on a roof, it’s important that you give safety the topmost priority, and hence you must avoid slippers and wear helmets while working.

how to install sarking in existing metal roof

The installation process of a sarking on an existing metal roof is vital. If you know how to install sarking on an existing roof, then the process is quite similar to that but there are some additional points that need to be considered:

  • It’s important to sag the worksheets to allow proper drainage and the water can easily flow to the gutter.
  • Some space should be provided between the roof surface and the bottom portion of the sarking to allow air circulation.
  • To prevent water from spilling it’s essential to seal the vertical overlap within roll joins.