JPH0447312Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a snow-free roof.

(Prior Art) Conventionally, as this type of snow-proof roof, a roof without rain gutters with a slope that prevents snow from sliding down from the eaves has been disclosed in Japanese Utility Model Application Publication No. 165306/1983, and As shown in Figure 3, a roof with a large slope is known that has a rectangular rain gutter attached to the north side (right side in Figure 3).

(Problem to be solved by the invention) The former mentioned in the above conventional technology causes a problem due to snow and melting water falling from the eaves, although it is a small amount, and the latter causes problems in the same area in the rain gutter. Due to the large difference in temperature between day and night, falling rain and melting water freeze during the night, resulting in lower snow melting efficiency the next day.

Additionally, compared to other regions in Hokkaido, the Obihiro/Tokachi region has characteristics such as less snow, larger temperature differences, more periods of sunlight, and strong sideways winds that often blow during and after snowfall.

The object of the present invention is to provide a novel snow-shedding roof that takes advantage of the above characteristics and improves the above defects.

(Means for solving the problem) In order to achieve the above object, the snow-shedding roof according to the present invention has a surface with a color that has poor heat absorption and a 100%
The main part of the roof slopes down to the south with a slope of 0.5 to 3/100, and the inner surface of the lower edge of the main part has a color that absorbs heat well, and the horizontal wall on the south side has a slope of 40 to 45 degrees. It has a rain gutter with a sloped surface.

(Function) The surface of the main part of the roof has a color that has poor heat absorption and slopes down to the south, so snow on the main part of the roof is easily melted by radiant heat during the day, and snow on the main part of the roof is easily melted by radiant heat. Since the slope is set at 0.5 to 3/100, which is close to flat, snow that has just fallen (accumulated) on the main part of the roof is easily blown away by crosswinds and is difficult to accumulate overall. Moreover, since the slope of the main roof part is small, snow accumulated on the main part of the roof does not easily slide off and does not block the top of the rain gutter. Furthermore, since the south side wall of the rain gutter in this invention is sloped at an angle of 40 to 45 degrees, sunlight can efficiently illuminate the bottom wall and the inner surface of the side wall of the rain gutter, and the same rain The inner surface of the gutter is said to have a color that absorbs heat well, so during the day, snow remaining inside the gutter and ice that froze the night before melts easily.

In addition, in this invention, the slope of the main part of the roof is 100%.
If it is less than 0.5, the dissolved water will flow backwards,
If it is more than 3/100, the snow will slide easily and it will be uncomfortable. Also, if the side walls of the rain gutter are at an angle of less than 40 degrees, the width of the rain gutter will become too wide, which is undesirable, and if it is over 45 degrees, the upper surface of the bottom wall of the rain gutter will not be irradiated, making it impossible to obtain a sufficient effect. It disappears.

(Effect of the invention) As mentioned above, the snow-free roof according to the invention has a color that has poor heat absorption on the surface and
The main part of the roof descending to the south has a slope of 3/3, and the inner surface of the lower edge of the main part has a color that absorbs heat well, and the horizontal wall on the south side has a slope of 40 to 45 degrees. Because it is characterized by having a rain gutter, it is relatively difficult for snow to accumulate on the main part of the roof and inside the rain gutter, and it also prevents accumulated snow and frozen parts inside the rain gutter from accumulating. dissolves easily the next day,
Furthermore, snow and melting water do not fall from the eaves, which is very convenient.

(Example) The first example shown in FIG.
The south side (on the left side in Figure 1) with a slope of 1/2 slope constitutes the main part 1 of the roof, and the rain gutter part 3 is made of galvanized iron in a color with good heat absorption, such as black, on the south edge of the main part of the roof.
The horizontal wall 2 on the south side of this rain gutter 3 is sloped at 42 degrees, and the rain gutter 3 faces east and west.

In the second embodiment shown in FIG. 2, the rain gutter part 3 is provided at the eaves.

In addition, 5 in the figure is a black drainage pipe, 6 is a pit,
7 indicates a manhole.

Incidentally, the Tokachi region of Hokkaido has many solar radiation periods, for example, in February when the outside temperature is -5.8℃, black galvanized iron is +
16.8℃, white galvanized iron has a temperature of -2℃, and when the outside temperature in April is +14.5℃, black galvanized iron has a temperature of +39.5℃ and white corrugated iron has a temperature of +16.5℃. This means that the above effect
It is effective and extremely effective in increasing the effect.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing the first embodiment of the snow-shedding roof of the present invention, Fig. 2 is a schematic diagram showing the second embodiment, and Fig. 3 is a schematic diagram showing the second embodiment.
The figure is a schematic diagram of a conventional example. 1... main part of the roof, 2... side wall, 3... rain gutter, 5... drainage pipe, 6... pit, 7... manhole.

Claims (1)

[Scope of utility model registration request] The surface has a color that has poor heat absorption and the temperature is 0.5/100~
The main part of the roof slopes down to the south with a slope of 3/100,
This snow-free roof is characterized by having a rain gutter whose inner surface provided at the lower edge of the main part of the roof is colored to have good heat absorption, and whose south side wall is sloped at an angle of 40 to 45 degrees.