Roof Box Newgrange

Below the decorated lintel is what o kelly called the back corbel and behind that is roof stone 2 rs 2.

Roof box newgrange.

The ritual origins of the roof box at newgrange the thesis by laura e. O kelly termed the roof box is one of the most celebrated features of the passage tomb at newgrange. On mornings around the winter solstice a beam of light penetrates the roof box and travels up the 19 metre passage and into the chamber. This baffling orifice held a great surprise for those who unearthed it.

The term was coined by professor michael o kelly during his excavation of the newgrange passage cairn at brú na bóinne ireland. From the scrape marks on the rocks archaeologists were able to tell that these rocks had been used to block or open the hole just like a window. The elaborate structure above and behind the entrance to newgrange which the excavator professor m j. The roof box at newgrange originally contained two large white quartz blocks.

The roofbox was built directly above the entrance door to the passage. It was built with carefully crafted baffles that restricted the entry of light to the time of the winter solstice and also so that the light only came. Above the entrance to the passage of the mound there is a opening called a roof box. Key piece of the newgrange design was a roof box or light box which controlled the way light came into the passage.

The view through the roof box slit after sunrise on the winter solstice. Newgrange is unique compared to other nearby passage tombs within the boyne valley as well as other passage tombs throughout the rest of ireland since it is the only known passage tomb with a roof box structure o kelly 1982 93. Above the entrance to the passage at newgrange there is a opening called a roof box. In front of the roof box is the first roof stone of the passage rs 1.

The roof box sits above the passage tomb entrance resting partially on top of two different roof slabs. Its purpose is to allow sunlight to penetrate the chamber on the shortest days of the year around december 21st the winter solstice. Newgrange is best known for the illumination of its passage and chamber by the winter solstice sun. It is well known that newgrange has a roof box through which the winter solstice sun light penetrates up to the chamber of newgrange.

This was done in order to to let in the light at the right time of the year and to conceal the opening otherwise. This window through which the sun shines on the chamber floor is at present times trapezium formed because the light is blocked by.