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Not to change the subject, but for those who might be interested -- this photo contains an example of tradition in construction. It's one of the best examples that "tradition" (from practices used for hundreds of years) has in the building industry.
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I'm referring to the two horizontal wood members you can see at the top of the photo. Those are called "collar ties" and they have a longstanding history. From the standpoint of engineering they do not compute, and if it were up to an engineer they would not be included in the design of the roof framing. But collar ties have been used traditionally for many centuries, being found in old European buildings, and have been used as well in America since builders and carpenters came from Europe to work in America.
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I don't see any structural ridge member although there could be one concealed above the white panels among purlins where hopefully there is insulation, too. Ireland gets cold. Lacking a structural ridge the roof would be less durable and less sturdy. (The ridge member has a purpose related to the use of collar ties.)
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For the good of the Resistance Catholics using this new chapel, I hope it endures and serves them well.
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