Hi gavEco, I thought the law was changed recently to require all membranes to be breathable? This is all new to me, and also the first I've heard of the internal vapour barrier and external breathable membranes. Does this mean two membranes in the same wall? I'm in NSW, cold climate.

this is a useful link frombradford proctorwrap: https://www.bradfordinsulation.com.au/~/media/bradford/files/wall-wrap-window-opening-detail.pdf?la=en

https://hia.com.au/Publications/InformationSheets/bca2046-window-and-door-flashing-ncc-2019

yeah I hear you Michael. Try and get any straightforward information about how to build something right in Australia and it's wrapped up in obscurity - we have to pay $100 to get the instructions from SAI Global. Have a look at this from the National Construction Code - Im still uncertain where to g...

I don't believe so. The problem is customers want to be able to choose from 3000+ colours like if selecting a Dulux or Taubmans colour. It just doesn't happen with "mineral" based products. So they introduce an acrylic system which can utilise typical paint tints. To achieve a breathable ...

I don't believe so. The problem is customers want to be able to choose from 3000+ colours like if selecting a Dulux or Taubmans colour. It just doesn't happen with "mineral" based products. So they introduce an acrylic system which can utilise typical paint tints. To achieve a breathable ...

Murobond has <10% acrylic polymer. See safety sheet. Film forming. Are you suggesting the lime mix as a basecoat or finish coat? Rockcote Lime Plaster is a finishing coat. long time between replies, I didn't get notifications of your comments theoretically lime (NHL2) can be used for all layers of ...

ps i agree with other comments - remove the concrete path, get all vents open and funcitoning as they should, slope all ground away from the house (1:10 slope) to good drainage to carry surface water away, make sure nothing is seeping in elsewhere. Check gutters and plumbing for leaks. An old bluest...

hi Please don't demolish it!!!!!!!!! There is a lot of misinformation in the trade. Find a good hydrologist who knows what they are talking about. You would speak with the hydrologist on the phone first to see how 'on the ball' they are wrt building issues. If you are in a major city, there will be ...

I can heartily recommend ALETA industries for subfloor fans, DIY fan kits and vents. Highly knowledgeable, they seem to stock better fans with longer warantees for a good price. Excellent customer service. Compare them. Smaller company that spends less $$$$$ on google ads, but a better business. [c...

I can heartily recommend ALETA industries for subfloor fans, DIY fan kits and vents. Highly knowledgeable, they seem to stock better fans with longer warantees for a good price. Excellent customer service. Compare them. Smaller company that spends less $$$$$ on google ads, but a better business. [c...

I can heartily recommend ALETA industries for subfloor fans, DIY fan kits and vents. Highly knowledgeable, they seem to stock better fans with longer warantees for a good price. Excellent customer service. Compare them. Smaller company that spends less $$$$$ on google ads, but a better business. [c...

Thats incorrect, acrylic paint will form a film and not breathe. According to the laws of physics, every single substance can be vapour permeable (as it is just about allowing water vapour molecules to pass through the structure via diffusion, this is mainly what you refer as "breathable"...

You can look up the specifications for rockcote lime render, to get an idea of how far the material goes. But remember that rockcote is already mixed with sand so you're paying top dollar for sand as well. Can't give you square metre rate per sae without looking up my notes, from memory the ratio is...

I bought 20kg NHL2 for around $50 from Thorhelical in Sydney. Remember this is mixed with sand (ratio approx 2:3 from memory) so it goes a long way. Beats Rockote lime render hands down for value, and easier to use, more buttery

PS if you're looking for a render (interior of exterior) why not go for lime and sand? Use NHL2 or NHL3 Hydraulic lime (eg Tower lime imported from UK) an entirely different beast to hydrated brickies lime. NHL2 or 3 gets you a tough, economical and very easy to apply diy material

Hi you can talk to manager Peter from Murabond, he's readily available and technically adept

porters distemper would be the most vapour permeable indoors paint in their range fyi

hi I realise this post is over a year old now and you've probablhy already painted your walls. However for future reference... Im looking into this very question atm. From extensive research, Murabond has some excellent-value fully vapour permeable Mineral Silicate Paint - cost is around $28/L but m...