ONDULAIR®
ONDULAIR 300/390 from Onduline is a ridge sealing tape which is designed to combine excellent waterproofing and ventilation properties.
It is made of powder-coated, UV resistant, single-layer aluminium.
The size of the vents also ensures good protection against insects or debris entering into the roof space.
The width 30 cm is suitable for most roof tiles.
The width 39 cm is used for tiles with large profiles.