Applications:

The top of a parapet is a high maintenance area due to the near horizontal top surface being heavily exposed to all climate conditions and physical wear and tear.  Hitex have, through years of experience, developed application techniques to overcome these problems.

Hitex produce a factory made, waterproof capping that has a sloped surface with waterproofing membrane layers comprising of Hitex WR Lamina and fibreglass matting.

Hitex recommends the use of a metal capping for increased durability in harsh or extreme environments.

The parapet must be constructed with two top plates of H3 treated timber and wrapped with non-perishable building paper.
 

Using the Hitex Diamond Cavity System, any water entering through cracks or aging plaster will be diverted into the cavity and will be free to drain away.

Hitex applicators install the parapet caps so the slope directs water to the inside of the roof or deck and ensure that all joins are tanked prior to final coats – no nailing is used in the installation of these caps, only glue and fibreglass mesh.  Hitex can accommodate curved parapets and in all cases ensures the caps waterproofing goes up adjoining walls.

Any hand rail fastenings need to be designed so their attachment is on the vertical face of the parapet wall.

Applications:

A penetration is where a pipe, wire, rainhead or bracket protrudes through the Hitex system.

Any penetration must be sufficiently sealed to prevent water entering the cladding.  If the penetration does not have an adequate flashing system then the penetration must be reduced to the smallest possible area of protrusion.

Sealing is done by using a sleeve or spacer that will sit proud of the cladding allowing for a strong, maintainable bead of sealant, and the wire, pipe, bracket or bolt will pass through the sleeve itself and be sealed into the sleeve.

Hitex no longer warrants the system in any areas of timber protrusions. 

For water pipes that will move with heat or water, these taps must have plastic flanges fitted.

HiTex Building Systems Ltd
PO Box 258056, Greenmount, Auckland, New Zealand, Tel +649 274 0246, Fax +649 274 0937,
Email info@hitex.co.nz

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