Architrix : technical news : copper roof tiles


Author:Wegelin, Hans
In:Architecture SA Vol 53, Issue 1, Jan

Copper roof tiles

Guild House, Nieuw Muckleneuk, Pretoria

Unlike the fully supported flat sheet copper roof on solid boarding with welted standing seams in the direction of fall, this roof is in the form of tiles, fixed to brandering at an angle of 45 degrees. Their use was inspired by similar tiles made of zinc on the roof of the Palace of Justice in Church Square, Pretoria, during renovation work undertaken by the architects. There are similar tiles on the spire of the Hervormde Kerk in Du Toit Street, Pretoria (± 200 x 200 mm) and the Victoria Hotel near the station (in the form of scales). Other shapes like diamonds, rhombs, rectangles and triangles have been used, very often also as side cladding.

The tiles are prepressed and could possibly be quite a bit larger than the 400 mm square ones used in this example. Copper cleats are hooked over the turn-up of every tile and nailed to the brandering. A plastic underlay was used. It remains to be seen how the tiles stand up to a severe Pretoria hailstorm without a solid board base.

The roof edge is finished with a copper gutter, with spouts into fibre-cement down-pipes. Note the steep face brick window cill without overhang, adding to the overall crispness of the building.

Architecture SA Jan/Feb 1992

Koper dakteëls

Gilde Huis, Nieuw Muckleneuk, Pretoria

Anders as die ten volle ondersteunde plat koperplaat dak met felsnate op soliede planke, is dié dak in die vorm van geperste koper teëls op latte, gedraai teen 45 grade. Koper klampe word oor die teël se omslag gehaak en aan die lat gespyker. 'n Plastiek onderlaag is voorsien. Dit moet nog gesien word hoe dié teëls teen 'n kwaai Pretoriase haelstorm sal opstaan!

Die dakrand is afgewerk met 'n koper geut, met spuier in 'n veselsement afleipyp. Let op die skuins siersteen vensterbank sonder oorhang wat bydra tot die pittige styl.

Architecture SA Jan/Feb 1992