Designed to provide watertightness and ventilation to the ridgeline. Also used for wall abutments waterproofing.
The APRON PIECE designed to provide water tightness and ventilation to the ridgeline (residential), for roofs with a pitch up to 120 % (or 50°). Can also be used to seal the gap between ONDUVILLA and vertical wall abutment.
Used at the ridge for roofs with a pitch up to 120 % (50°). For pitches between 70 % and 120 %, it is necessary to cut the flat part above the corrugations.
A gap of 1 cm is necessary between both APRON PIECES, in order to ensure appropriate ventilation.
When used as a wall abutment, the ventilation gap between the wall and the APRON PIECE is also necessary. Watertightness is secured by using an aluminium Z-profile and a line of silicone mastic.
For specific roof details, please refer to ONDUVILLA fixing guide.