Here the profile of the bars can be seen. The arch increases the strength of attachment. A bead of beeswax along this edge helps promote comb production in the right direction.
The end ventilation bars do not hold comb.
The top bars of the Dome Hive fit easily on the central ring. There are large finger grips around the bottom edge for ease of handling whilst wearing bee gloves. There is also a hive tool insertion point should the bees have waxed the joins together.
Please note that the one darker bar in this picture has been oiled. The bars will not be oiled, and do not need any treatment.
The first and middle comb bars showing the differences in size. Each bar is of the same width (35mm) allowing the queen the freedom of the hive. The finger grips and hive tool insertion points are easily seen.
The dome lid fits easily over the bars, leaving a small air layer. This allows for ventilation and provides an air gap which adds insulation to the hive, especially during the heat of summer. The bees do not have access to this area of the hive.
A single bar profile. Note the point along which comb is attached. This profile promotes strong comb attachment, and the curved shape gives the comb a stronger structure - useful in the hotter weather.
The bars are made from paulownia - a wood that is water resistant and does not move or swell. They are also very light weight and very strong. Even though you can mark them with your thumb nail, they will not break. The bars do not need any oil treatment.