RSS Fetcher Posted January 17, 2014 Share Posted January 17, 2014 The Midland roundhouse roof has slatted ventilation louvres along the full length, on both sides, of each of the three roof pitches and although a number were missing during the 50/60's they still pose challenge to accurately model them. As a trial I decided to try and model the rectangular roof ventilator situated over the machine shop in the Workshop building. I decided to use 2mm x 1.5mm 'T' section brass in which I cut 8 x 45deg slots using a piercing saw. 16 of these were made, three for each end and five for each side. The louvres were made from lengths of 0.3mm x 3mm nickel silver strip and soldered into the slots. Once the ends and sides were fabricated the whole assembly was soldered together to give the correct rectangular shape. A test fit.... The hipped roof was then made up from my stock of lengths of 2mm x 1mm rectangular brass. The photo is an enlargement of the roof ventilator at Barrow Road. Finally here are a few photos of ventilator in position above the machine shop. The observant of you may have noticed some intruders in the sidings - Thomas, Annie & Clarabel [converted to P4] made an appearance for my grand-daughter over Christmas The result is pleasing and I shall use the same method to make the ventilators on the roundhouse roof - at least they consist of 3 louvres per side and not eight! View the full article Link to post Share on other sites More sharing options...
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