Browse Forums General Discussion Re: Stud Wall Opening 2Sep 17, 2022 11:21 am Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Stud Wall Opening 4Sep 17, 2022 6:55 pm Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Stud Wall Opening 5Sep 17, 2022 7:47 pm chippy With regards struts, they must be either vertical, perpendicular to the rafters or at an angle to the vertical which does not exceed 35⁰. Some of the props in your roof are not doing much. At least it's old hard wood roofing. Is it a tile roof or has it been re-covered? It sorta looks like I can see metal purlins running under the roof cover but can't quite make it out. Thanks. The roof was, until recently, supporting Terracotta tiles. It was reclad recently with corrugated iron (colorbond). The steel battens were installed then. Re: Stud Wall Opening 6Sep 17, 2022 11:54 pm Ernabella chippy With regards struts, they must be either vertical, perpendicular to the rafters or at an angle to the vertical which does not exceed 35⁰. Some of the props in your roof are not doing much. At least it's old hard wood roofing. Is it a tile roof or has it been re-covered? It sorta looks like I can see metal purlins running under the roof cover but can't quite make it out. Thanks. The roof was, until recently, supporting Terracotta tiles. It was reclad recently with corrugated iron (colorbond). The steel battens were installed then. Has the roof been tied down correctly? Metal roof construction is different to tile roof. It is critical to have the roof tied down correctly otherwise roof lift like you see in storms is a very real possibility. Many people think that it's just a matter of changing the roof cover but the actual structure needs to change because a metal roof can lift completely off under low pressure situations. Failure to correctly tie a roof to the structure of the house is one of the biggest areas of non compliance in stick roof construction and the regulations are very strict. Insurance companies won't want to pay out if the work was not compliant and there is an issue. Hopefully it's been done right. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Stud Wall Opening 7Sep 18, 2022 12:38 am chippy Ernabella chippy With regards struts, they must be either vertical, perpendicular to the rafters or at an angle to the vertical which does not exceed 35⁰. Some of the props in your roof are not doing much. At least it's old hard wood roofing. Is it a tile roof or has it been re-covered? It sorta looks like I can see metal purlins running under the roof cover but can't quite make it out. Thanks. The roof was, until recently, supporting Terracotta tiles. It was reclad recently with corrugated iron (colorbond). The steel battens were installed then. Has the roof been tied down correctly? Metal roof construction is different to tile roof. It is critical to have the roof tied down correctly otherwise roof lift like you see in storms is a very real possibility. Many people think that it's just a matter of changing the roof cover but the actual structure needs to change because a metal roof can lift completely off under low pressure situations. Failure to correctly tie a roof to the structure of the house is one of the biggest areas of non compliance in stick roof construction and the regulations are very strict. Insurance companies won't want to pay out if the work was not compliant and there is an issue. Hopefully it's been done right. An interesting question. Professional roofers were employed to remove the tiles and replace with roofing iron. I can't recall them doing anything different with the roof structure. Looking at this second set of diagrams, I am unsure what to do about the bracing. As you can see, a substantial portion of the diagonal wall bracing will be removed. Should I use ply bracing across the remaining studs, or are there other options? Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Stud Wall Opening 8Sep 18, 2022 10:55 am Bracing ply would be the go. I do hope that the roofers that re-roofed your house took the time to triple grip all the rafters to the top wall plate, and have screwed all the metal battens to the rafters. That's the sort of thing I'd be checking while you are having a look in the roof. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Stud Wall Opening 10Sep 18, 2022 5:45 pm Yours wouldn't be the first to have this happen. The problem is, the existing roof will have had a few skewed nails per rafter holding it in place. When there a tonnes of roof tiles up there holding it down and the fact that in wind conditions that cause a low pressure above the roof individual tiles can lift and essentially negate the pressure differential then the existing roof is fine. Once you remove all the weight with tin and then screw the whole roof together with metal sheeting you have effectively made a giant wing that in the right wind and weather conditions forms a low pressure above the roof and basically lifts the roof off and then typically deposits it in a neighbours pool. New houses have triple grips and purlin straps that hold the roof structure to the house frame or brickwork to prevent this happening, and with stick roofing failure in this area is one of the biggest areas of noncompliance. Technically when you change the roof cover you are meant to get council approval and all of these details would have been part of the building requirements. Many people don't realise this and the roofing guys don't care, they just do what you ask them ie change the times to tin. Are you in WA? Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Stud Wall Opening 11Sep 18, 2022 7:53 pm chippy Yours wouldn't be the first to have this happen. The problem is, the existing roof will have had a few scewed nails per rafter holding it in place. When there a tonnes of roof tiles up there holding it down and the fact that in wind conditions that cause a low pressure above the roof individual tiles can lift and essentially negate the pressure differential then the existing roof is fine. Once you remove all the weight with tin and then screw the whole roof together with metal sheeting you have effectively made a giant wing that in the right wind and weather conditions forms a low pressure above the roof and basically lifts the roof off and then typically deposits it in a neighbours pool. New houses have triple grips and purlin straps that hold the roof structure to the house frame or brickwork to prevent this happening, and with stick roofing failure in this area is one of the biggest areas of noncompliance. Technically when you change the roof cover you are meant to get council approval and all of these details would have been part of the building requirements. Many people don't realise this and the roofing guys don't care, they just do what you ask them ie change the times to tin. Are you in WA? Fair enough. Difficult to address now. I’m in NSW, on the coast between Newcastle and Gosford. The wind doesn’t usually present a problem but every few decades we do get a damaging gale. Thank you again Simeon.. I will call my certifier for that. Have a good day 4 6168 6 11505 ok thanks - yes was wondering if that should have been listed as Option Three! 2 8006 |