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I think these wooden blocks that are hanging out are called roof rafters — how can I repair them myself? What kind of treatment or materials would I need, and how urgent is it to fix? Could you please share all the necessary information, including the materials and tools required?
Hi @Rys,
It looks like the exposed rafter ends on your roof have suffered extensive rot, and unfortunately, this isn’t something that can usually be repaired with a quick D.I.Y. fix. The sections extending past the gutters can sometimes be cut back flush with the gutter line and the ends sealed with paint, but in your case, the rot has spread under the guttering and into the rebate where the gutter sits. This has also affected the fascia boards, which are warping and rotting due to prolonged moisture exposure. Essentially, the exposed rafter ends have allowed water to track back into the roof structure, and leaving them as they are risks further internal damage over time.
Given the condition, this is an issue that should be dealt with. While it’s likely been developing for many years, the ongoing exposure means the damage will continue to worsen. The proper repair typically involves removing the gutters and fascia, assessing the full extent of the rot, cutting the rafter ends back inside the roof’s footprint, and then grafting or bolting on new timber extensions to support replacement fascia boards and reinstalled guttering. This process requires the right tools, experience, and a good understanding of roof structure, so it’s realistically beyond what most DIYers should attempt. I’d recommend getting a professional roofer or carpenter in to carry out the repairs—they’ll ensure the structure is sound, stop the water ingress, and prevent more costly problems in the future.
Please let me know if you have any questions.
Mitchell
