![C3 External Corner for D260 Wall Fillet Trim #slatekit #html-body [data-pb-style=BFYSP5Y]](https://cdn.shopify.com/s/files/1/0625/0299/4141/files/c3-ext.jpg?v=1685046331)
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and the cover size is 1090mm x 310mm
triple-layer membrane that provides your roof with exceptional second-layer waterproof protection
A perfect solution for encouraging ventilation around the roofline
The Coroline range by Ariel comes with a 15 Year Guarantee
C3 External Corner for D260 Wall Fillet Trim #slatekit #html-body [data-pb-style=BFYSP5Y]The C3 External corner is a hot press moulded GRP pre formed external corner that removes the need to mitre corners of D260 fillet trim. The corner should be nailed to he deck at the corner and in the middle. The joint between the trim and the corner should be sealed with a thin line of PU sealant. Any excess sealant should be wiped clear. The joint should now be bandaged with 75mm wipe glassfibre mat.
