Browse Forums DIY, Home Maintenance & Repair 1 Sep 19, 2010 6:58 pm I'm planning to DIY treatment of the Jarrah timber roof in my 1978 built home. Are there any experts or good advice for me before I proceed? I am a complete newbie to treating timber roofs, but I'm willing to give it a go. The objective is to make it termite proof and also to make the jarrah timber last longer in the roof. Many thanks all! Re: Treating Jarrah Timber Roof 2Sep 19, 2010 9:15 pm ? I've not heard of that? H3 and H4 are treated pines done in an industrial location prior to sale of the timber. Jarrah is not treated to the best of my knowledge, but I could be wrong.... Re: Treating Jarrah Timber Roof 3Sep 19, 2010 9:37 pm When you say Jarrrah roof - do you mean that the suport structure is off Jarrah ? Never heard of a Jarrah roof, even so, if the treatment is of H3 or H4, then it should suffice. Suburbia is where the developer bulldozes out the trees, then names the streets after them. Re: Treating Jarrah Timber Roof 5Sep 19, 2010 9:55 pm Don't bother. Jarrah roofs will sit there forever without rotting or being attacked by termites. Termites don't particularly like Jarrah, they will eat it if there is nothing else but you wouldn't bother treating the roof timbers. There are plenty of 80-100 year old houses that sit there year after year with no issues with rotting or termites. I think you 30 year old place will be fine just as it is. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Treating Jarrah Timber Roof 6Sep 19, 2010 10:02 pm Just for all you eastern staters, Jarrah was used widely in roofs in WA up until fairly recently. In fact it was quite common for Jarrah to be used in the sub floor and wall frames and karri in the roof due to it's higher strength. Karri is also a favourite for termites so keeping it as far from the ground is very important. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Treating Jarrah Timber Roof 7Sep 19, 2010 11:39 pm Our 1990's house has jarrah roof timbers. It's only more recent WA houses that use pine trusses. It's all driven by cost - jarrah has become more expensive now that supply has dwindled. The normal standard now is pre-fab pine trusses - cheap but not overly pest resistent, unless treated pine is used. Treated timber is produced under pressure so that the product penetrates the wood to the core. It would be difficult to emulate that as a DIY project with the timber already in place. As far as termites go, you'd be wanting to treat the sub-floor and perimeter first. If termites can't cross the perimeter then they can't get into your walls and into the roof. Pest contollers should be able to do a typical house at a pretty reasonable price. We just had ours renewed after 10 years, ata cost of well under $1000. WA termites are nasty little critters and they will get into softer timbers if they get the chance. The typical termite treatment only has a finite life of 5-8 years, so don't be complacent. Engineering timber is certainly a less fuss option, times cheaper to supply and install and better withstands humidity. 1 15839 2 9385 This certainly doesn't look good. I would be engaging with an independent inspector to have a look at this. As for the unscheduled site visits, most builders are quite… 1 28157 |