Properly made of wood trim, designed to properly design and reasonable prevention guarantee good final result and durability of wooden products. To read more click here: Yale University. Wood has specific features to consider when using it. First of all, timber – the "living material", which contains moisture. Please visit vlad doronin if you seek more information. The growing tree is fed with water through the roots and trunk, composed of longitudinal cells ("Plumbing"), connected by an adhesive substance (lignin). In the lumber and wood products preserved structure of the cells of a growing tree, so board absorbs water, and through the transverse plane is more degree than longitudinal. The moisture content of wood varies with the humidity (not to mention the direct hit of water, such as rain). In case of fluctuations of relative humidity, wood seeks to balance the moisture, ie, it dries out, losing moisture and expands (swells) when wet. This can lead to significant warping of wooden structures and products, so it is essential to reduce the inherent timber capacity for water absorption.
But the main enemies of the tree are different microorganisms (molds, algae, bacteria, fungi and antimitsety), insects and, of course, fire. Protection of wooden materials from these harmful external influences – a serious problem. In addition, the processing of wood is necessary to consider the heterogeneity of its structure along and across fibers, high porosity, and the difference in texture Depending on the species, the combination of which provides a variety of textures surfaces of different color schemes. The use of more decorative treatment of wood with paints can implement the most unthinkable decorative delights. Based on the above-mentioned specific properties of the wood to be protected from adverse environmental factors, all the paints for working with wood can be divided into two main groups: special, protective or decorative materials, or finishes. Note that many of the manufactured decorative compositions endowed with protective functions, and special protective materials and often have decorative characteristics.
The problem of sound insulation is familiar, perhaps, everyone in the Russian cities. Especially, noise excites the people who live in prefabricated houses. The noise from above and below, the voices behind the wall, the music from the apartment, located in three floors below in the next entrance, noise from the establishment cars in the yard … Yes, a lot more public noise. If this has piqued your curiosity, check out Gerald Weissmann, MD. In general, it would be nice to somehow ensure that the notorious sound insulation. I tried to do something in the repair of the apartment.
Initially Read what is on this subject on the Internet, he found not so much. In particular, a useful article posted in razede 'Articles' on the construction site Trowel (elport.ru). I read the article and did it, and taking into account their own way. In fact, nothing particular, and nothing specific. Just tried to fix some flaws in construction. Below is their recommendations.
So, give the description of the situation: a multi-storey stone house (not bad, however, located relatively far from the roadway of the streets); apartment house in the end, the neighbors above and below. Apartment house in the end means that the neighbors on the one hand there is the apartment. This is good. However, there is a danger that this side of the street can penetrate not only the noise but the wind and the water (many people know that so often happens). Condition insulation to repair the following parameters: – top and bottom of audible phone call, the call tone, as well as loud and not very loud conversations.
Functions and types of hedges. In hedges several functions. If you look at this element of the garden, in terms of landscape design, this is one of its main elements. Hedge separates the site creates harmony, comfort and the geometric rigor. In terms of gardening, hedge is to protect fruit crops in your garden, from the icy winter winds and the scorching summer sun. Do not forget to protect from dust and noise. What is not little importance in our time. Hedge, itself acts as a decorative composition, but it can also serve as a backdrop for flowers and low shrubs giving it extra charm emphasizing the details.
External and internal hedges vary in height and have a different purpose clear from the title. There is a fence of one or more species of plants. The first requires more care and look more beautiful and more severe. The second type of hedgerows will save you time, but usually they take up more space. -Species of evergreen hedges, clipped plants the most popular with garden designers. It will look great round year.
In forming the hedges, must take into account the penetration of sun rays on the lower branches. If they will not be enough light, your composition will have a different hue that will look bad when panoramic view. In addition, with poor penetration of light, there is likely to be infected plants. It is also necessary to consider the degree of oppressed among other plants. This will be discussed in the articles section – gardening.
A bit of arithmetic. Surrounded school furniture children spend until 8:00 daily, during 11 summer schooling and 5 year education in SCHOOL. The result is 16 years 365 days. In the day to eight hours a child has to look on whiteboard that b perceive information which expounds on blackboard Rapporteur or lecturer. AND addition 5840 days 8:00 obtain 46 720 hours even if deduct weekends and vacations anyway have solid number hours concentrated attention on a blackboard. Consequently, children need school board, which would be contributed to the current educational process, not hinder. History and harsh reality. Many faced with school boards, which were made artisan to 20-30 years.
These boards were the basis of (chipboard or MDF) covered with linoleum or hardboard base, then painted with paint intended to paint the floor. Chalk on a blackboard was sliding, because the surface was very smooth. Linoleum or hardboard took up the waves. And very strong board that the sun's rays shone through the window fell audience. Paint to erase or grease in the areas of maximum use. At the end of each year at a parent meeting to collect money for repainting the school board. Although it is understood that this problem is not corrected, children with back row will still be hard to parse the information contained on the blackboard, and they will again ask again the contents of the inscription on the blackboard at the speaker, and strain the eyes, so at least something unintelligible.
This all could have been remember with a smirk, if in our time in most schools have not been used, such school board. Health and Blackboard. Blackboard – this is primarily a child's health. Vision, and brain activity is largely depend on the correct choice of the school board. The school board must meet state standards 20064-86 (Boards cool). Also, school boards must meet state sanitary – epidemiological service area 'for room equipment of educational institutions. " Blackboard. What should I look for when choosing a school board? Now, in contrast to recent times a wide selection of school board. The first thing to pay attention to the surface of the school board. The surface should be dark green (European standard), matte, anti-glare, with the normal "friction." Very handy when all surfaces blackboard magnetic. In these boards with magnets can attach posters to the board. The second thing to be aware of this life. In modern magnetic blackboards life of 5 years and up to 25 (depending on manufacturer of the working surface). Pay attention to the profile boards for aesthetic reasons. There is a school board with an aluminum frame around the perimeter. And there is the school board with aluminum frame and plastic inserts for corners (looks nicer). The weight and thickness of the school board should not pay attention, because the quality of the board is not affected. For primary schools and classes to the profiling slopes razlinovka needed throughout the school boards, or any parts of a board. Razlinovka school board to be positioned so that when working in the vicinity of the school board, visible, and sitting at a desk, does not prevent perceive written in chalk. Razlinovka should not be wiped with time. Remember that investing in the educational process – an investment in future health and intellectual development of your baby!