The stone is from YDL Stone called Kalala Shan. I wanted caesarstone calacatta nuvo but that would have broken the bank! This one still has that marble look I wanted but it's actually a warm base more off white, goes well with wood and the trouble I am having is which grey to put it with in the bathrooms! I was thinking light grey with off white...where did you get your tile from?

Gal will go grey (mid to dark grey) over 12 - 18 months. Initially VERY bright. The energy absorbed changes accordingly, from sub 5% absorbed to ~35%. Zinc maintains brightness for longer, though still suffers some dulling. Say 5% to 15% over time. This can be avoided by coating with a product called 'Sharkhide' metal protectant, used to stop aluminium boats oxidising. For there reasons many councils will not allow zinc or gal roofing (visual amenity, reflection issues), while making the houses more prone to requiring summer aircon at the same time. Surfmist Colorbond starts around 9% absorbed. If purely for energy reasons, a light colour might be the only option. If going dark, I would suggest at least doing the 'less aesthetically important' sides and rear in a light colour. Your call. If you go all dark, ensure you have good roof space ventilation for the summer that can be closed in the winter, and lots of well installed ceiling level insulation. Spray foam is more reliable over time than batts, see Spray It Solutions or similar (they have the Formaldahyde free Canadian Icenene foam).

HI All....read everything and to me it would appear the main cause is your slab, albeit issues around the slab. A trench is a start, with extra drainage (black round pipe with heaps of holes in it, and loads of scoria). My opinion is that the actual ground is damp and unfortunately concrete is porous, so as long as there's heaps of water around that cannot drain away, the concrete will slurp it up. (I'm no drainage expert) As far as your gib goes, I don't think you have any option but to replace it (then insulate wall by wall as you go.) Here in NZ, I previously worked for a company that did leaky building repairs, and honestly, that black mould is a very real danger to the family's health, so it's got to go. Like others have said, you may get rid of it visually for a period of time, but once you rip the gib off, you may come across other issues. I'd also invest in a dehumdifier and keep that cranked to start getting moisture out of the air, or other options as others have mentioned. Sorry Cathy, ain't no easy fix there..................... Is it possible to have a look into council records to see what the land back in the day was actually used for? That may give you an insight into what the problem could be.

Further to some previous comments I’ve made over the past few years on various subject matters ; anyone that would like some further detailed information on the subject on sun control window insulation films as an option to consider for improving both heat loss and heat gains through windows ( also referred too as window tinting and / or glass tinting ) , including glass security /glare control / fade protection and decorative glass treatments etc can check out some articles I had printed in the “ The Owner Builder “ magazine no’s 180 & 181 ( Dec-Feb 2013-2914 editions ) It may help those understand a little better the product for those having various issues, such as this present subject matter on cooling methods , in this comment section . As others have mentioned, one product may not solve all their particular problem/s and quite often more than one product / solution may often be required to obtain a better outcome . I’ve found a lot of problems start initially with overall buildings design , orientation and the amount of glass / windows used and their sizes /design and type / amount of insulation used overall . Having been in the window tinting industry for about 38 years now and covering both domestic and commercial buildings , I’ve noticed how the weather patterns changed to an extent that the solutions/ products that may have been available / used some 30 odd years ago ; now have new and updated products / solutions on offer . One can email me for further advice to clarify some issues . Although I’m a Tasmanian based business, I’ve lived and worked all around Australia and spent over 5-1/2 years in north Qld so do have some experience living in different climates .