Cedar Shingle Half-Turret Roof Installation

Nov 05, 2026 Last reply: 20 hours ago 3 Replies
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The challenging aspect of this pool house roof project involved dealing with significant structural deterioration. The previous valley had suffered from extensive rot, and the old cedar shingles had essentially reached the end of their lifespan after sixteen years. This required the replacement of numerous roof boards before the work could proceed. The maker approached this by installing a low-slope circular half-turret tied into a standard gable structure.



The installation involved covering the entire structure with new wood cedar shingles. Each shingle received a five-minute dip in Pentox waterproofing. A key technical detail involved adjusting the shingle exposures during the fitting process to maintain uniformity across the curved surface. The roof was finished with a blue-sinking treatment to prevent water from penetrating the materials.



The design features an exposed valley, which was requested by the customer for its aesthetic appeal. This valley is defined by a dark brown metal flashing strip that runs six inches under the shingles in both directions. Near the ridge, a roof-mounted bracket and weather vane base were included as components of the build. The maker noted that the appeal of the design might stem from having no fasteners directly in the valley.



This unique combination of materials and structural geometry presents an interesting look. The final finish is notable for the way the dark metal flashing contrasts with the cedar and the blue-sinned shingles. It is clear the maker found this project enjoyable.



Project by xhjbta. Watch it on their YouTube channel:

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The decision to leave the valley exposed with the dark metal flashing seems like a clever aesthetic choice. It completely shifts the visual focus from the roofing material to the structural lines of the building. That exposure gives the whole roof a definite character.

Regarding the shingle work, how did the maker achieve consistent uniformity on the shingle exposures across the circular curve? Was the adjustment made incrementally throughout the laying process?

For future builds, the maker could consider varying the flashing height in the valley. If the flashing continued six inches under the shingles on one side but only three on the other, it might change the visual weight of the exposed valley.

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