The building and repair of a house include activities and works which require having good building materials, including tools and accessories. What tools and accessories will be needed in works associated with a flat roof insulation project? What fastenings should be bought to carry out roofing works?
The application of flat roof fasteners
Before we answer question concerning the type of flat roof fastening types and how to select them during roofing works, it is good to get familiar with their applications. It will help you better understand their specificity. First of all, the fastenings of flat roofs are used in the assembly of thermal and hydro insulation (www.rawlplug.com). They enable you to attach the insulation material to roofs in such a way as not to make thermal bridges. What is more, through their adequate level of design, they guarantee the assembly to be fast, but also durable.
Types of flat roof fasteners
The fasteners used on flat roofs are created specially with regard to such a surface. Their structure transfers dynamic suction forces. Following their proper distribution their performance is very good. In the design of roof fasteners the specialist knowledge and experience of our engineers have been applied. What is more, they are tested acc. to many criteria, such as the resistance to tearing out or self-screwing, and the chemical compositions of plastics are also analysed.
Two types of roof fasteners can be distinguished. The first one is the rigid system. It is the most universal system. It is widely applied and proves to be particularly efficient in applications on hard thermal insulation layers. The other system is the telescopic system – innovative and giving the best outcomes. Especially on flat roofs.
Because the screw is telescopically connected with the sleeve, both elements cooperate with the thermal insulation. Even if the thickness of the insulation layer changes in time, the fastening will also change its height and, what is more, will not damage the thermal insulation membrane.
Accessories for the assembly of thermal insulation on flat roofs
And what will be needed if you want to fasten thermal and hydro insulation on a flat roof? What accessories should you have? Certainly, neither roof screws nor plastic sleeves nor steel washers should be missing.
Because the sleeves have got a sharp edge on the cone, it is easier to push them into the membrane’s perforation. It considerably accelerates the works. Besides, the round disk eliminates the necessity to position the plug, and also ensures that the whole system is resistant to mechanical damage. The sleeves, made of impact resistant materials, are not susceptible to the effects of external factors, such as, for example, temperature. Good sleeves work well in any type of substrate – from concrete, through steel sheet, to wood-like panels.
In order to assemble thermal insulation on a flat roof, it is also necessary to have a screw tailored to a given substrate. It is possible to buy screws for concrete, steel and wood. We should focus on screws which are hardened on their surface, provided with an anti-corrosive coating, and with the blade finished to ensure fast assembly. A proper thread ensures proper fastening. It is therefore necessary to use flat washers. So that the screws, mounted in steel, are more stable. Besides, they do not damage the membrane.