Flat Seam Zinc Roof

Flat roof vs pitched roof.

Flat seam zinc roof.

Zinc roofs can be laid to very low pitches down to 3º depending on the type of jointing seam used. Surfaces that are single plane in geometry are simple to construct curved surfaces can require a multi layer approach of curvable thinner sheathing. Flat roofs tend to be significantly cheaper than pitched roofs to install. Standing seam warm roof on rigid insulation.

Whereas zinc routinely appears on residential homes as tiles or shingles and falls in in the range of 4 50 to 6 per sq. Standing seam cold roof on open gap timber boarding. First mentioned in relevant literature in 1899 it is the preferred choice over other systems for roof pitches starting at approx. The substrate provides the structural support for the zinc and generally the standing seam or flat lock clips are fixed to it.

Flat lock panels offer a simple yet elegant cladding solution that provides a longitudinal flat seam. The double lock standing seam is a further development of the original hollow seam or the simple standing seam. Installing a zinc roof on top of a sloped structure costs more than a flat roof installation. 430 mm is a common width depending on the brand of zinc used.

Plywood can be used but in this case zinc plus must be used. 375 mm 285 mm. The vmzinc flat lock panels are fixed to timber boarding. Quartz zinc anthra zinc pigmento azengar thickness.

Furthermore larger homes may have complex roofs with sections sloped and sections flat. For aesthetic and technical reason the distance between seams on zinc roofing cladding should be less. Continuous ventilation openings are made at the top and bottom. Standing seam warm roof on cellular glass insulation.

Sloped roofs are more dangerous than flat roofs. Standing seam warm roof on plywood bonded to phenolic foam. Zinc standing seam panels come in on the upper end of the material costs or 6 to 8 per sq. It should provide a minimum clip pull out value of 560n.

As a general rule the zinc roof sheets can be up to 600 mm between the standing seam centres. Sheets of zinc are placed over the flat surface and strips of zinc are placed over the battens to replicate the effect of upfolds and crimping in standard seam zinc. Zinc can also be laid over insulation boards on top of an existing felt roof. For larger residential structures and routinely on commercial buildings zinc roofing panels or standing seam are used.

Standing seam warm roof on insulated metal faced panels. For heritage or flat roof projects a batten roll method where generally wooden battens are fixed to the plywood or timber roof substrate to form ridges is a good alternative. Standing seam g3.