How is the correct Angle Ridge Tile selected for a roof?



How should Rosemary ridge tiles be laid with Dry Ridge?



Can Gas Flue Terminals be used for coal effect gas fires?

Gas Flue Ridge Terminals are licensed with British Gas for use with appliances with a maximum output rating of 60kW. The Gas Flue Ridge Terminal must also be connected to an 'R' type adaptor - available from metal flue liner specialists such as SFL Flues and Chimneys (www.sflchimneys.com) - which converts the circular flue to the rectangular outlet of the ridge terminal. The adaptor, available in 100mm and 125mm diameter, is bolted to the underside of the ridge terminal with a flue gasket fitted between them.


What fixings should I use to mechanically fix ridge tiles?

All mortar bedded ridges must be mechanically fixed to comply with BS 5534: 2014: Slating and tiling for pitched roofs and vertical cladding - Code of practice by using wood screws and clamping plates to fix universal angle or half round ridge tiles to a ridge board or ridge batten. The wood screws and clamping plates are available in packs of six. Specify product code 9566 for half round ridge tile plates, 9567 for universal angle ridge tile plates and 9584 for wood screws.
It is essential that the ridge board or ridge batten is positioned to provide a minimum of 15mm penetration of the wood screw. For trussed rafter roofs where no ridge board is present additionally specify product code 9447 for packs of six batten fixing straps.


How close can Ridge Vent Terminals be placed together?

It is not possible to place Ridge Vent Terminals immediately next to each other when using Dry or DryVent Ridge as it is essential that the ridge batten spans at least two rafters to ensure its stability. The closest the Ridge Vent Terminals should be placed together is every other rafter spacing. At 450mm rafter centres it may be possible to space the terminals at 900mm centres without the need to cut ridge tiles. At 600mm rafter centres, 150mm pieces of ridge tile must be cut and fixed between the terminals.