Internal and external tanking must prevent the ingress of water and water borne aggressive salts such as chlorides and sulphates penetrating concrete structures.
Any failure or deficiency of inaccessible below ground waterproofing of a structure, can be very difficult and expensive to correct. For that reason Nuralite offers the choice of two proven systems to meet the demanding needs of specifiers.
Nuraseal (formerly called Premseal 100)
Nuraseal is a totally impervious flexible self-adhesive
waterproofing sheet membrane. The self-adhesive bottom surface is laminated
with siliconized release foil or paper and the top surface of the membrane is
covered with a special, durable high strength coloured polyethylene film.
The elastomeric nature of the synthetically modified coating is designed as a homogeneous mixture of a special bitumen and high quality type SBS elastomer, which ensures totally durable waterproofing.
Nuraunderlay
Nuraunderlay is a tough, reinforced bituminous waterproofing
membrane, of great strength and durability. The membrane is 3mm thick of APP
bitumen with a heavy reinforcing layer of non-woven polyester inside. The 10m x
1m rolls of Nuraunderlay 3P are laid by torching the underside of the membrane
and applying it to a suitably primed surface.
Both systems have been developed for long-term, low maintenance waterproofing of construction features such as