Fire rating the butynol roofing system must be considered combustible but may be used on buildings for all purpose groups subject to the requirements of nzbc.
How to repair butynol roof.
Painting over butynol use roof acrylic paint with ardex seam primer on non ponding areas.
Ardex butynol is a synthetic rubber membrane that protects against water moisture vapour gases sun ozone frost acids chemicals and bacteria.
Butynol and eco butynol roofing membranes ardex new zealand limited p o box 19549 woolston christchurch tel.
I think you are going to need to reroof it genreally the ply could be laid over the top so may not be a major job.
03 384 9779 www butynol co nz appraisal no 436 2011 product 1 1 butynol and eco butynol roofing membranes are synthetic rubber waterproofing membranes designed to be used on roofs and decks.
Beware of using non ardex primers as this may effect your butynol warranty.
Wash with sugar soap.
Our skilled crew know exactly the level of care attention that is required to properly repair or replace your worn damaged membrane roof.
03 384 3029 fax.
Cleaning weathered butynol use sugar soap to remove oxidation and restore surface wind blown dirt is more noticeable on low slope roofs particularly on black butynol.
But i doubt you can patch it as it sounds like the problem is the substrate not the butynol.
Is the roof angled.