When building your own country house, the question of protecting it from various natural phenomena such as rain, snow or hail often arises. All this requires a good roof. Currently, the best option is sheet roofing. However, in order for the roof of the house to be strong and reliable, it is necessary to use only high-quality fastening tools. These include roofing screws , about which further will be discussed in the article.
Definition
A roofing screw is, in fact, a screw that is made of metal, with a more advanced thread. It tightly connects the roofing material to the roof. Self-tapping screws are made mainly of carbon steel, and then coated with zinc.
Varieties
Self-tapping screws for roofing are usually classified by size, weight and by the type of material that they fasten - for metal, for wood. They are distinguished by the pitch of the thread, as well as self-tapping screws designed to work with metal wider in diameter. Thus, before choosing a fastener, make sure that it is suitable for the roofing material and is also made of quality material. Self-tapping screws can also be distinguished and there are usually two of them by the shape of the cap:
1. Standard, suitable for a regular screwdriver
2. With special edges. They can only be screwed in using special bits for roofing screws.
There are roofing screws and with different tips, mostly sharp and with a drill end. The main difference is that for the first type, you must first make a hole, but for the other not.
Thread
Self-tapping screws with different threads serve different purposes. So, products with coarse carvings are more suitable for soft products and are ideal for a wooden roof. Self-tapping screws with fine threads, in turn, are designed for hard materials, mainly metal. There are also fasteners with two-start threads for connecting materials with different densities, for example, wood to metal and vice versa.
Better quality
It is always worth remembering that you are building yourself a place in which you are going to live in the future. And being in a house with a leaking roof is not the most pleasant thing. Therefore, it is highly discouraged to take cheap fastening material, since it is usually made of low-quality steel. In turn, a good self-tapping screw, which can be purchased here http://www.metiz.net/ will serve you for more than fifty years.
