Guides for sheet metal businesses
Practical articles on flashing calculations, metal usage and material codes.
How to calculate flashing blank width and metal usage
Formulas for calculating the blank width, number of pieces, joint overlap and metal usage for sheet metal flashings (eaves, sills, gutters) - with an example and a table.
5 min read →
Sheet metal thickness and RAL colour codes: how to read '040 7024'
How to read sheet metal material codes: '040 7024' means 0.40 mm thickness and RAL 7024 colour. A table of popular RAL colours and their local market names.
4 min read →