Attachment for roof outlets with integrated bitumen sleeve

TOPWET attachment with an integrated flange of modified bitumen for vertical and horizontal TOPWET roof outlets of DN 70, 100 and 125, with a sealing ring, without a leaf guard (XL version only for outlets of DN 150). TWNE = heated performance, suitable for an insulation thickness over 300 mm.

For thermal insulation thickness
TWN v220 BIT 40–220 mm Drawing documentation
TWN v300 BIT 40–300 mm Drawing documentation
TWN v500 BIT 40–500 mm Drawing documentation
TWN v300 BIT XL 120–300 mm Drawing documentation
TWN v500 BIT XL 120–500 mm Drawing documentation
TWNE v300 BIT 100–300 mm Drawing documentation
TWNE v500 BIT 100–500 mm Drawing documentation



We offer a complete range of products for flat roof drainage systems, TOPSAFE fall protection systems and many other accessories.


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