In 2015 we installed a 3-box triangle on my daughter's sunny gable end (here). It is now occupied by 2 pairs of Swifts so we wondered how to expand the number of boxes
There were 2 choices, either to add a 3rd row of 3 boxes at the bottom of the triangle, or to make a new cabinet on another northeast-facing gable. This gable is wooden-cladded and has an apex nearly 5 metres high.
As there should be no over-heating to deal with, the front is a single sheet of 12mm plywood and is painted dark to match the gable.
This is the 4th triangle of this general concept that we have installed, the other 3 all have Swifts in them.
The slope of the roof is less steep than the other 3, so the headroom of the boxes is slightly less at 14cm, and the length of the boxes is slightly greater. The depth of the boxes is 15cm.
[Update June 2018: One pair has occupied the bottom right chamber, the one nearest the tweeter]
There were 2 choices, either to add a 3rd row of 3 boxes at the bottom of the triangle, or to make a new cabinet on another northeast-facing gable. This gable is wooden-cladded and has an apex nearly 5 metres high.
As there should be no over-heating to deal with, the front is a single sheet of 12mm plywood and is painted dark to match the gable.
This is the 4th triangle of this general concept that we have installed, the other 3 all have Swifts in them.
The slope of the roof is less steep than the other 3, so the headroom of the boxes is slightly less at 14cm, and the length of the boxes is slightly greater. The depth of the boxes is 15cm.
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| Front removed ready for installation |
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| 6 screws through the back secure the cabinet to the boards |
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| The lowest 3 boxes are just over 4 metres high |
#triangle
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