Retrofit Cavity Wall Ties
Our property is an 1883 UK Lancashire 125mm cavity wall brick farm house. On this external wall section as can be seen it is not tied in anywhere, (does have wall ties below this) hence after 140 years the inner leaf has crumbled away and I have removed all the loose bricks. we intend on siting the second floor joist on top of this leaf hence needed to be rebuilt as not structurally sound. I purchased these: Vista Engineering Frame cramp Wall ties (along with a wall starter which seems fine) with the intention of retrofitting wall ties using 6mm bit sized red rawl plug /screw into external wall then cementing into the mortar. I figured this would be perfectly structurally sound. https://bsfixings.uk/frame-cramp-wall-tie-with-drip-ve7d-box-of-10/ However as can be seen in the picture, I believe I've bought the correct size (200mm) as the tie is on the inner leaf by just over 50mm, any shorter and this would be too short, however the drip is only 10-20mm away from the inner leaf. this just isn't right, it should be central. Guidance here: https://www.labc.co.uk/news/installing-cavity-wall-ties-masonry-walls-0 I looked at the alternatives such as the twirly ones, but I don't want to go disturbing the good external lime mortar. Any ideas to remedy? my favourite so far is wrapping some small diameter (maybe 1mm) wire around the centre of the tire to catch drips, would this work? I have considered re-bending the L shape, but this would make the bearing end too short. Also considered cutting a groove centrally to act as drip, but unsure if this would work. These don't appear to be a good product, can't find anything online about similar issues any better ideas? different products? wanted to do this job on the weekend https://preview.redd.it/jmdg0b2solze1.jpg?width=1500&format=pjpg&auto=webp&s=37ae7af41e7083a6f7688b5d960a747605318107 https://preview.redd.it/bgo5xa2solze1.jpg?width=1500&format=pjpg&auto=webp&s=0f1563ee7cae3b1bee6bc376f4c97f4a76c437ed submitted by /u/rx7joe92 [link] [comments]
| | Our property is an 1883 UK Lancashire 125mm cavity wall brick farm house. On this external wall section as can be seen it is not tied in anywhere, (does have wall ties below this) hence after 140 years the inner leaf has crumbled away and I have removed all the loose bricks. we intend on siting the second floor joist on top of this leaf hence needed to be rebuilt as not structurally sound. I purchased these: Vista Engineering Frame cramp Wall ties (along with a wall starter which seems fine) with the intention of retrofitting wall ties using 6mm bit sized red rawl plug /screw into external wall then cementing into the mortar. I figured this would be perfectly structurally sound. https://bsfixings.uk/frame-cramp-wall-tie-with-drip-ve7d-box-of-10/ However as can be seen in the picture, I believe I've bought the correct size (200mm) as the tie is on the inner leaf by just over 50mm, any shorter and this would be too short, however the drip is only 10-20mm away from the inner leaf. this just isn't right, it should be central. Guidance here: https://www.labc.co.uk/news/installing-cavity-wall-ties-masonry-walls-0 I looked at the alternatives such as the twirly ones, but I don't want to go disturbing the good external lime mortar. Any ideas to remedy? my favourite so far is wrapping some small diameter (maybe 1mm) wire around the centre of the tire to catch drips, would this work? I have considered re-bending the L shape, but this would make the bearing end too short. Also considered cutting a groove centrally to act as drip, but unsure if this would work. These don't appear to be a good product, can't find anything online about similar issues any better ideas? different products? wanted to do this job on the weekend [link] [comments] |
