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I need to mount a couple of outdoor cameras at my house. Exterior wall layers are EPS, and behind it cement board. The electrician put some conduits where I told him I wanted the cameras. Any special screws in order to safely mount?

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  • Foam outside cement board? What's the finish?
    – isherwood
    Commented Jul 11, 2023 at 13:43

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I'd try TherMax fixings (no affiliation).

Cement board isn't listed as an substrate, but the dowels are able to hold in all building boards.

enter image description here Image source: fischer group of companies

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