What Are The Requirements For Slate Roofing
Slate is among the most attractive, most durable roofing material – the pieces of stone installed on an overlapping pattern are all unique and a correctly installed slate roof can last for at least 100 years. However, slate is also a very heavy material that can only be sustained by a solid structure that fulfills various criteria – here are some requirements:
- The weight-bearing capacity of your building – most buildings featuring lightweight framing are not suitable for being fitted with slate roofs, so the first requirement to meet is a sufficiently solid building structure;
- The roof slope – as a general rule, the steeper the sloping angle of the roof, the better. To allow for correct installation, a slope that is at least 8:12 is required, but 12:12 or even 18:12 are much better;
- The installation – San Mateo roofing pros emphasize that slate roofs need to be installed by professionals who are familiar with the special requirements of the process. The roofer needs to know exactly how to calculate the headlap and the offset of the pieces, how to pick and install the right type of underlayment on the roof deck as well as how to pick and how to use the type of roof nails that work best for durable, but thick and brittle stone.