Roof insulation thickness calculation 20

The thickness of the roof insulation layer is calculated according to the weighted average thickness, and the drainage length * slope 2 + the thickness of the thinnest point.

If the aspect length is not the same, the average thickness is also different, and the total volume of the calculated volume of each block and the average thickness of each block divided by the total roof area is its weighted average thickness, plus the thinnest thickness. It's a bit complicated, but precise.

For example, the thinnest part is 20mm, 2% slope, there is a slope on both sides, and the average thickness of the roof insulation layer with a roof span of 15 meters is calculated as: [20mm + (20mm + 15 * 1000 * 2% 2) mm] 2 = 190mm 2 = 95mm.

The difference between the structure elevation and the building elevation (the building elevation here means that the roof is the entire plan, excluding roof practices, e.g. roof gardens.)

You can also use the method of adding up each layer of materials.

It depends on how you set it up structurally.

First, the structural layer does not find slopes.

Second, the structural layer is slope-finding.

The former is calculated according to the minimum and maximum thickness, and then calculated according to the slope and length.

The latter is a constant value and is not calculated much.

If it is the former, a value that everyone likes to take is the minimum 80, and the slope depends on the building, and most of them find the slope according to 2%!

The thickness of the insulation layer is generally about six centimeters, and the structure of the roof from the outside to the inside is 1 (cm) three felt and four oil waterproof materials, 2 (cm) cement mortar, perlite insulation layer, 2 (cm) cement mortar, 20 (cm) cement mortar, 20 (cm) floor slab, cm) coating.

In the northern region, the temperature of the surface under the sun in the summer will reach 75 degrees Celsius, and the best insulation material and the best insulation thickness are selected without waste.

Quality issues that should be paid attention to in construction.

1. Poor function of the insulation layer: thermal conductivity of the insulation material, particle size gradation, water content, paving density, etc.; The materials selected for construction should meet the technical standards, control the density and ensure the functional effect of thermal insulation.

2. Uneven laying thickness: not carefully operated during laying. The line should be pulled to find the slope, paved smoothly, and the materials should be avoided from accumulating on the roof during the operation. Homogeneous laying is guaranteed.

3. Quality problems at the corners of the insulation layer: the edge line is not straight, and the edge is not neat, which affects slope finding, leveling and drainage.

4. The paving of the plate insulation material is not real: it affects the thermal insulation and waterproof effect, resulting in cracks in the screed. The quality standards of the norms and evaluation standards should be strictly met, and the acceptance management should be strictly enforced.

How thick is the roof insulation? The thickness of the insulation layer is 5-7mm, the thickness is carried out in accordance with the design of the drawings, the heat transfer coefficient of different materials is not the same, and different regions, different buildings have different requirements for energy-saving performance, generally the roof of the master is about 15cm in Tianjin, and the insulation is generally 5-7cm slab or rock wool. Roof (top) insulation, the northern part of our country is cold in winter, in order to make the temperature inside the room in winter can meet the requirements of use and the needs of building energy saving, the roof should be set up insulation layer.

The thickness of the insulation depends on the local climate and the requirements for room temperature.

Exterior wall insulation is composed of insulation materials, and the structural layer that plays a role in thermal insulation in the external insulation system. According to the energy-saving standards promulgated by the state, from October 1, 2001, it is stipulated that the newly planned real estate must be made mandatory to do external wall insulation.

The choice of insulation thickness is related to the cost of energy-saving buildings and the economy of operating costs. The mathematical model of calculating the economic thickness of the insulation layer by the life cycle consumption analysis method considers the heating energy consumption of the building in its life cycle, which has the characteristics of scientific, simple and convenient.

When there is a lack of heating system data, the use of design specifications has good pertinence and adaptability, has a certain reference and application value for engineering design, and can be used for the design and calculation of new or old building renovation and new insulation materials.

The engineering quantity of roof insulation slope layer is calculated in cubic meters according to the laying area shown in the design diagram multiplied by the average thickness. Exterior wall insulation = area of the outer edge of the wall - side wall of the door and window openings (added to the outside of the insulation layer). The roof insulation layer should be distinguished from different thermal insulation materials, which are calculated in cubic meters according to the design thickness of the paving, unless otherwise specified.

What is the function of insulation? 1. Thermal insulation: We will find the same building structure form, the removal of the insulation layer and the non-eradication of the insulation layer of the house, in the summer use of air conditioning, the use of heating in the energy consumption of the energy difference of 20%-50%, the insulation of the house is directly related to the use of indoor equipment, the better the insulation effect of the house, the lower the energy consumption.

2. Thermal insulation: In summer, the outdoor temperature reaches more than 30 degrees, and the indoor temperature is only more than 20 degrees, and in the same way, in winter, when the outdoor temperature is below zero or only a few degrees, the indoor temperature can be kept at more than 10 degrees, which is the thermal insulation of the building wall, which can reduce the mutual transfer of heat. In addition, when the temperature difference between indoor and outdoor environment is large, the humidity is high in summer and it is easy to have condensation on the wall, and the strong thermal insulation of the wall can reduce the condensation caused by the temperature difference between indoor and outdoor, thereby reducing the problem of mildew and yellowing on the wall.

3. Sound insulation: Our understanding is that the wall is made of soundproof cotton to absorb sound to reduce noise pollution, especially the ship is close to the highway or railway, the airport of the housing, will be affected by the external noise of the housing in the construction of the increase of sound insulation measures, of course, the main function of the ordinary wall foam pearl particles is not sound insulation, such a material can play a certain sound insulation effect while increasing the thickness of the wall.

What should I pay attention to when decorating the wall? 1. Check the wall.

Under normal circumstances, the walls of the house decoration are constructed with cement mortar, but we must carefully check it before construction. For example, see if the cement on the wall is smooth and firm, and if not, change it immediately to avoid some unnecessary mistakes.

2. Finished product protection.

Before the wall decoration is carried out, it is also necessary to do a series of protection for the surrounding places. Because when decorating the wall, it will lead to putty, paint, etc. in other places at any time, which will eventually bring a series of troubles to the life of the occupants.

3. Preparation before putty.

Before scraping putty on the wall, it is necessary to see if the wall is flat, and if it is not, it must be treated. In fact, when the wall surface is uneven, it can be filled with cement. In addition, if conditions permit, you can also roll the concrete interface agent on the wall, and wait until it is dry before painting.

Summary. Kiss 3 The thickness of the roof insulation can be checked by the following methods<>1Using a Thickness Gauge:

A thickness gauge is an instrument that specializes in measuring the thickness of a material and can be used to measure the thickness of roof insulation. 2.Visual inspection:

By observing the surface of the roof insulation layer with the naked eye, its thickness can be roughly judged. However, this method is not accurate enough and can only be used as a basis for preliminary judgment. 3.

Sampling testing: Samples can be taken on the roof insulation for laboratory testing to determine its thickness. But this method is more cumbersome.

Kiss 3 The thickness of the roof insulation layer can be checked by the following methods<>1Use a thickness gauge: A thickness gauge is an instrument specifically used to measure the thickness of a material, which can be used to measure the thickness of roof insulation.

2.Visual inspection: By observing the surface of the roof insulation with the naked eye, its thickness can be roughly judged.

However, this method is not accurate enough and can only be used as a basis for preliminary judgment. 3.Sampling Testing:

Samples can be taken on the roof insulation for laboratory testing to determine its thickness. But this method is more cumbersome.

The answers are, a, with a steel needle insertion and ruler inspection, b, instrument scanning. c, drill core sampling. d. Observation and judgment.

I don't know which one to choose.

Do you have more than one choice? Radio.

I don't know where I liked it.

Kiss 3 in the bottom left corner!