Thursday, May 6, 2010

Construction – Lintel Detail for Bathroom Windows

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Unlike most of the window openings, that extend up to the top of the walls, the bathroom windows puncture one of the big end-walls, with the triangle of wall extending up above them. We had considered a self supporting arch, but the soil was not forming cleanly and the amount of solid timber required to make the arch-form would have been significantly more than the timber we used for the lintels. In the end we used 40mm thick hardwood 3 times longer than the width of window opening, to spread the load of the wall above out away from the window. The masons set the lintels into the course below, ensuring they were level with a firm footing on both sides, and then we continued ramming the next course.

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