2012年4月7日 · However, on looking underneath a loose floorboard I can see the steel RSJ that supports where a wall between the kitchen and dining room was removed years ago. This RSJ …

2007年7月24日 · The kitchen had a flat roof that has leaked like buggary down the years and the RSJ has rusted qite a bit on the surface. This I have scraped off back to a sound surface, and …

2009年8月13日 · Many rust removers are simply acids. This stuff converts rust into an inert black layer. I've used Kurust (another Hammerite product) to good effect. Converts the rust to …

2009年10月10日 · The LLs surveyor said the steel frame was rusty and demanded it be treated. To do that would require removal of the entire external masonry envelope at a cost in the tens …

2023年12月2日 · There are now loads of tiny pinprick of rust showing through the paint on the RSJ. I'd intended on using a wire cup/ flap disc to remove or at least smooth out the crappy …

2018年1月21日 · My question/concern is that although the RSJ's are painted in a red primer, I am concerned that they will rust over time causing the external render and brickwork to crack. …

2014年3月21日 · In a heated house, the initial loss of steel to rust over the first year or so will be around 0.01 to 0.02 mm (say 0.015). This forms a firm coating on the steel which, if left …

2008年1月27日 · Its to do with a Building Condition report for a 3 storey building with basement. They tell you that each floor is supported on 4 RSJs but they are in very poor condiion and …

2017年4月3日 · My builder has just built a retaining wall with oak railway sleepers and three 3m long 150mm x 150mm H profile RSJs hammered 1.7m into the ground next to a stream in my …

2007年9月3日 · I've exposed an RSJ as part of building works, and it has a slight coating of rust. Not bad for 70 years (!), but is it worth doing anything with it to perhaps treat the ...