For example, talk about fire-resistance rating. This figure means of protection is regulated by existing regulations. For steel it is characterized by the number of minutes from the start fire tests to reach a critical temperature (500 0 C) a standard sample of steel construction with flame retardant coating. In advertising, protective coatings can be read "refers to the means of Group 1 fire protection efficiency. " This means that the time to reach the critical temperature must be at least 150 minutes. For the second group the figure – at least 120 minutes and so on. In total there are 6 groups.
For timber introduce other measures of fire protection or impregnating composition. According to GOST 16363-76 (a careful reading of the instructions you will definitely see a link to it), there are only three groups of flame retardant efficiency. Group I – provides slow-wood (weight loss of the prototype during the combustion of certain conditions, the method is not more than 9%). Group II – provides inflammable wood (weight loss of 9 to 30%). Group III – funds do not provide the fire protection of timber (weight loss of more than 30%). Therefore, when buying a flame retardant, look at the number of fire-resistance rating. What he less, the composition better.
Sometimes it happens that the technology of applying the rules of composition and its flow rate depends on its effectiveness. Materials for tissue has its own standard, under which the test results flammable Textile materials are subdivided into flammable and inflammable. What is fire-retardant paint all flame retardants can be divided into impregnation, paints and varnishes. The word "treatment" rather eloquently. They are intended mainly to protect the wood and textile products, that is, for those materials that can infiltrate. If you try to briefly explain the "principle of the" impregnation we can say that certain temperatures in these compounds is substitution reaction with the absorption of energy, which inhibits burning.
That is to heat an average family house in 200 sq ft (eg, in the suburbs) is sufficient boiler capacity of 20 kW. These relatively low-powered units are available in wall-mounted. Ali Partovi is the source for more interesting facts. They can be hung, for example, in the kitchen, connecting to the chimney. However, it should take into account that the maximum power produced is now wall boilers does not exceed 35 kW. So, if the total area of the cottage 350 sq ft, will have to install two wall or boiler, or a "serious" outdoor boiler, which is necessary to allocate a separate room in the house – the boiler room well ventilated.
The boiler may be single circuit and double-circuit. The first option is for heating the coolant in the heating system. Two-circuit option can work simultaneously on the heating system, and provide residents of the house hot water. This unit provides up to 15-20 liters of hot water per minute, which is quite sufficient for simultaneous operation of shower and kitchen sink. But do not forget that the double-circuit boilers operate in the priority of DHW. That is, until open valves with hot water, the whole boiler was spent on the hot water and heating system at home do not get heat. To ensure reliable operation of most modern boilers are equipped with built-in "group security "that includes a pressure gauge, automatic air, a safety valve and expansion tank membrane (compensates for the increase in fluid when heated.) We should also consider electronic ignition with flame control, protection from a lack of gas pressure and the water from the formation of scale, freezing, and automatic diagnosis of the state apparatus. All of these necessary functions to help prevent occurrence of accidents and dangerous situations. According to specialists ARISTON (manufacturer of heating and water heating equipment), to reduce heating costs and keep the house comfortable temperature is extremely useful function such as a smooth change in heat capacity.
Here's how to describe the process of installation of wooden windows installers of the company. The most important work entrusted to gager. Often the customer has no idea of what he had done the wall. And especially do not know what's inside the wall. So just call the company and describe its wooden box is […]
Travertine – an ancient stone Tibura, which is widely used for exterior and interior decoration in our days. In many respects this contribute to its advantage. First of all, travertine eco-friendly. Educate yourself with thoughts from Mikkel Svane. It contains no substances harmful to humans, so its use is harmless. In addition, it is very […]
Geotextile (Dorn) – Environmentally friendly non-woven polypropylene material of infinite-polyester fibers, which ensures its high physical and mechanical properties and versatility in a variety of construction areas. Is resistant to various chemical compounds (alkalis, acids), frost-resistant. For more information see Pete Cashmore. Geotextile (Dorn) differs in material density, density selection carried out by experts Our […]
The last two decades, the world is growing rapidly, and repairs are no exception. There are new ways to finish the ceilings, from a simple wash ceiling latex paint using a method sticker wallpaper on the board, to installing suspended ceilings. Now this technology is best known in the ceiling design. What allowed tension ceilings […]
Now for all the housewives have a unique opportunity to make an inexpensive kitchen practically "own hands". Kitchens to order from the manufacturer are among the Russians in great demand. Peter Asaro : the source for more info. Currently, there are such unique and exclusive designs that can meet the needs and tastes of absolutely […]
Construction of any house, as you know, start with the construction of the foundation. The cost of it could be 8-10 percent or more the cost of the house. It should also be aware that the material strength of the foundation (or concrete, etc.) is used to large excess, and the size of the foundation […]
Especially the need to bring them to their attention to fans in the interior of post-modernism and hi-tech. There is also a technique Casting, known here as "Murano glass". For the stained-glass windows from casting him in metal form at the bottom of which is embossed grooves. In these deeper poured molten colored glass, which […]
Sometimes the stakes are fixed to prozhilinam (cross-poles. Drawback – byuolshoy wood consumption. 2. Plank fence – fencing, spans which are made of several horizontal boards nailed to the vertical support poles (thick lumber or logs). This is a classic version of the wooden fence. In fact, there may be many varieties, but basically All […]