A short film comparing installations of Hook Fixing and Nail Fixing at Newcastle College
We have a lot of anecdotal evidence which suggests the hook fixing method of installing natural roofing slate is quicker than traditional nail fixing methods. To test this we set up identical roofing rigs at Newcastle College and under the instruction of tutor and experienced roofer, Alyn Carr, we installed the same number of slates using each method and compared the time taken. The results where very interesting.
The hook fixing technique for roofing installation prevails over nail fixing elsewhere in the the world. Although less predominant here the method is widely used in those parts of the UK where weather exposure is considered more severe, for example in areas including Scotland, Cumbria, Devon, Cornwall and parts of Wales.
Slate hook fixing offers greater resistance to wind uplift as the hook secures the lower edge of the slate locking them together securely whilst maintaining a 2-3mm gap between subsequent slates. The technique also allows for easier creation of roof features such as valleys, cones and domes, which rely on being able to use narrower slates. Replacing individual slates fixed with nails can only be achieved using hooks. Hook fixing requires no holing, saving time and money.
We are working on more in-depth information about the technical aspects of slate hook fixing. If you would like to receive this when it is complete please use this form.