Browse Forums Building A New House 1 May 06, 2015 7:47 pm Can some one please assist me to find out if the builder installing the right plasterboard or not , in our Addenda we have 10 mm Water Resistant Plasterboard for just Alfresco ceiling and the rest is normal plasterboard but now we been on site today we checked all the plasterboard for Eves, garage, portico and alfresco are same , is there any difference in water resistant plasterboard and normal plasterboard , please anyone can tells us the difference. Re: Water Resistant Plasterboard 2May 06, 2015 8:02 pm That makes sense all those components are waterproof as they're exposed to the elements. I believe it's what's colloquially called 'blue board' which has cement base. You can tell 'blue board' by the blue tinge through it. Re: Water Resistant Plasterboard 3May 06, 2015 10:14 pm Thank you so much Tomcat , all the board are in norm white colour there is no blue in it. Is that mean they are just normal plasterboard? Re: Water Resistant Plasterboard 4May 06, 2015 10:39 pm Hrmm not necessarily, seems that the blue 'blueboard' is a James Hardie cement sheet product which has a blue primer and acrylic render applied. There are other brands of external cement sheeting. Refer: http://www.build.com.au/can-blueboard-b ... material-0 For external exposure, the sheets should be coated with an acrylic render to waterproof them. Maybe other brands' primer isn't blue ??? Hopefully someone else knowledgeable on these things will chip in and allay your fears But I recommend you take this up with your site supervisor or CRC. They'll explain for sure. Re: Water Resistant Plasterboard 5May 07, 2015 9:27 am I didn't know they'd gone to plasterboard for eaves these days... That just sounds a recipe for trouble to me. In the old days they'd always use fibre cement for wet areas, but then it seems they've started with the water-resistant plasterboard for more and more areas. If they have used plasterboard, you'd want to make sure all the outside areas like eaves and alfresco are water resistant, along with anything in the bathrooms. The best bet is to find the markings on the back of sheet to find the brand and model. The water-resistant product from Gyprock is "Aquachek". It mainly means the paper covering is designed not to fall apart as quickly when exposed to moisture. They may look the same from the front as the non water-resistant sheets, so no be sure you'd have to read the markings and research the particular product. Blueboard is a fibre-cement sheet, not plasterboard, and is thicker than the normal grey fibre-cement sheet used for eaves and bathroom walls. Re: Water Resistant Plasterboard 6May 07, 2015 9:33 am There's also the greenboard, which as you can guess has a slight tinge of green in it. It is water resistant (not waterproof). I went with it because if I had've gone to the fibre cement ceilings in those areas, you end up with a stack of plastic joints all the way through it. Owner Building at Jimboomba Woods in Logan City Qld. Blog : http://bandlnewhomebuild.blogspot.com H1 thread : viewtopic.php?f=38&t=68283 . Re: Water Resistant Plasterboard 7May 07, 2015 7:32 pm Thank you so much Tomcat,Onejohn, Bprett for all these information, yesterday we found a small invoice on top of goods arrived on my site, I thought they are plasterboard but they were all Durasheet, which is making me confused what's the difference between Durasheet and water resistance plasterboard, are they both same thing? Please help. Re: Water Resistant Plasterboard 9May 07, 2015 10:37 pm Two different BGC products, a quick google and you should be able to find the product brochures in short time. If they have put Durashet up in the alfresco then that is incorrect as per what is stated in your addenda. Thank you alexp79 and gommeqld for your advice, that's very helpful, thanks 3 7902 What we have done in a few theatres ( including my own) is run 2 layers of 13mm gyprock, but sounds insulation especially for the bass is really tricky as a lot of that… 4 2550 Plasterboard Gyprock is very popular as a reveal liner these days. You need to provide a way of supporting it, we use a modified timber reveal or bracket. You will be… 1 3012 |