Monarplan
®
Installation manual
13
062014V1
5.5 Position of butt joints
At the end of the membrane, i. e. normally after 15 m, the backed
Monarplan® GF waterproofing membranes can be butt-jointed or
hot-air welded at an overlap of approx. 1 cm and covered with an
unbacked strip of at least 15 cm width.
Unbacked membranes, however, are laid, analogue to the
longitudinal edge, with an overlap of at least 5 cm at the end of
the membrane.
Double T-joints are forbidden!
Double T-joints are avoided by a staggered arrangement of the
membrane ends.
If membrane ends are arranged without stagger, the end joints
are to be covered with an unbacked tape of at least 15 cm width.
5.6 Tips for installation
In case of low ambient temperatures, small ripples may show
on the waterproofing membrane after laying (especially in warm
weather).
NOT ALLOWED
min. 5 cm
laying order
laying order
min 150 mm
min. 20 mm
Approx. 15 mm overlap
