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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Roof Air vent
I am building a large 'oak barn style' building, the building has
150mm square wood posts physically bolted to steel base plates on the concrete raft, on 2 sides (open sides) and also steel straps holding down walls to floor on the closed sides. Due to large open front, I still have concern over wind lift (although structural Engr seems happy with bolts & straps) I seem to recall that on some farm buildings they have what I can best describe as large upturned casserole dishes ... these lie flat under normal conditions, but if a positive pressure builds under the roof, they lift allowing over pressure of air to vent out. Anybody know what these are called or where to get them ? |
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