August 2, 20242 yr Just fitting fascia boards on my timber cladding...the boards are tight up against the slates but due to the how slates are fitted there is a gap above the fascia as you can hopefully see in the attached picture. Do I fill this or leave it open? If I do fill it, with what? Some black ct1? It would have to be a pretty neat job as it is only single story so pretty visible. Any suggestions appreciated thanks.
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