Davco K10 Plus External Waterproofing Membrane
- Appraisal number 608
- Valid from
- Information provider
- BRANZ Limited
- Information type
- BRANZ Appraisal
Davco K10 Plus is a liquid applied waterproofing membrane for use under ceramic or stone tile finishes on external decks and balconies.
Davco K10 Plus has been appraised for use as a waterproofing membrane for buildings within the following scope:
- scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1; and,
- with timber supporting structures designed and constructed in accordance with the NZBC; and,
- with substrates of plywood and fibre cement compressed sheet; and,
- with decks that have a maximum size of 40m2; and, situated in NZS 3604 Wind Zones, up to, and including, Very High'.
Davco K10 Plus has also been appraised for use as a waterproofing membrane for external reinforced concrete pedestrian decks and balconies for buildings within the following scope:
- up to 3 storeys with a maximum height from ground to eaves of 10m and with a floor plan area limited only by seismic and structural control joints; and,
- with the reinforced concrete structure designed and constructed in accordance with the NZBC; and,
- subjected to unrestricted wind pressures; and, with the weathertightness design of all junctions being the subject of specific design by the designer.
Note: The design of these junctions have not been assessed by BRANZ and are outside the scope of Appraisal.
This Appraisal is limited to decks and balconies within the following scope:
- constructed to suitable falls (Refer Paragraph 12.1 - 12.9); and,
- with the membranes continually protected from exposure to UV (ultra violet) light and from physical damage by ceramic or stone tile finishes; and,
- with decks and balconies designed and constructed such that deflections do not exceed 1/360th of the span; and,
- with no steps within the deck level, no integral roof gardens and no down pipe discharging directly onto the deck.
Movement and control joints in the substrate must be carried through to the tile finish. The design and construction of the substrate and movement and control joints is specific to each building, and therefore the responsibility of the building designer and building contractor and is outside the scope of this Appraisal.
Ceramic or stone tile finishes are outside the scope of this Appraisal.