The causes of icicles on the roof. How to get rid of icicles on the roof? The causes of icicles on the roof Under our roof, a white nail weighs the sun will rise and fall

Hanging outside the window
Ice bag.
It is full of drops
And it smells like spring.
(Icicle)

The children sat on the cornice
And they grow down all the time.
(Icicles)

Caught on the cornice
Head hanging down
Little acrobat,
Winter candy ... (icicle)

Winter on gray roofs
Throwing seeds -
Grows white carrots
She is under the roofs.
(Icicles)

The piece of ice climbed higher
She began to live under the very roof.
Little Julia asks:
"What's under the roof there?" (Icicle)

Carrot is white
It grew all winter.
The sun has warmed up -
I ate all the carrots.
(Icicle)

It grows upside down
It does not grow in summer, but in winter.
But the sun will bake her
She will cry and die.
(Icicle)

Under our roof
The white nail is hanging.
The sun will rise -
The nail will fall.
(Icicle)

What is growing down with the top?
(Icicle)

I live under the roof
It's even scary to look down.
I could have lived higher
If only roofs were found there.
(Icicle)

This unusual book from the “Seasons” series will surely please your kid! Bright pictures, sculpted from plasticine, will attract his attention, and funny poems will tell about the autumn adventures of forest dwellers: a charming hedgehog and his friends. The books of the Seasons series are made of EVA foam - they do not tear, do not break and are absolutely safe for children.

The daughter of Goldilocks Blondie Locks cannot stay away from what is happening around - the unbearable cold has overcome the school and the whole city as a whole, so we urgently need to get ready for a long trip to return the warmth. Blondie has completely thought out her image - she looks amazing! A bright fur coat with a hood with a fur ruffle in yellow and blue shades, long blue boots look great with expressive beauty makeup and, even if hidden, but long thick hair. By the way, Blondie Locks did not forget to take her purse with her on the road.
The set for the Ever After High Blondie Locks doll includes a ring for girls and a story card.

Sanimobil PREMIUM is a high-quality sled with retractable wheels. This model has stylish design, very roomy, equipped with large soft wheels (diameter - 150 mm), flat oval runners and a unique swing-over pusher mechanism. This makes it possible to move it comfortably on asphalt and other hard surfaces. And the high ground clearance makes it easy to ride them from any slide. The parameters of this model allow you to conveniently and gently change the skids to wheels and vice versa without removing the child from the Sanimobile, you just need to press the strong metal pedals with your foot. The wheel shifting mechanism is very convenient, simple and reliable. The parent handle (pusher) and backrest can be removed if necessary. Wheels are made in Italy, and created by the latest technology, do not deform and do not crack in the cold, they are soft and quiet. The wheel attachment point is closed with a plug, which prevents dirt and reagents from entering the wheel axle.

The formation of icicles on the roof and their fall is one of the long-standing problems faced by urban and rural residents in winter period, photo 1... A sad fact has been established that every year around the world about 500 ... 2000 people fall victim to falling icicles hanging from the roofs.

Photo 1. Formation of icicles on the eaves of the roofs of houses

The formation of icicles on the roof is due to:

melting of snow under the influence of sunlight;
melting of snow under the influence of heat emanating from attic floor or communications that have poor thermal insulation.

Intensive formation of icicles on the roof occurs during the following periods:

early spring, when the water from the snow that melted during the day gradually freezes at night due to a slow decrease in air temperature;
almost throughout the entire winter on the roofs or selected sites with very poor thermal insulation.

Basically, the reason for the formation of icicles is the melting of the lower layers of snow on the roof heated from below. Melt water flows down the slope to the edge of the roof and into the drainage system, where it begins to freeze, since the temperature in these zones is much lower than on the rest of the roof. Part of the water gradually begins to freeze, and icicles are formed, which can be of great length and weight. In the process of snow melting, the icicle gradually increases in size and mass until the moment when the adhesion strength becomes less than its own weight, after which it falls from a height.

Photo 2. The mechanism of formation of icicles on the roof

Also, the following factors affect the intensity of the emergence and growth of icicles:

roof slope;
orientation of the roof in relation to the cardinal points;
the number of roof slopes;
material and color of the roofing;
roof shape;
compliance of the actual characteristics of the roof drainage system with these operating conditions.

To exclude the formation of icicles on the roof, it is necessary to carry out a number of measures aimed at:

ensuring a normal heat and humidity regime in the attic, which will reduce the rate of snow melting on the roof;
ventilation of the roof space;
reducing the amount of snow on the roof.

To determine the choice of an anti-icing device, it is necessary to determine the condition of the roof by the amount of heat loss or to determine the thermal regime of the roof.

There are conditionally such thermal conditions roofs:

"Cold" roof or "cold" attic;
"Warm" roof;
Hot roof.

"Cold" roof or "cold" attic

The "cold" roof has an attic, which is not intended for living and is not heated. In this case, the composition and structure ("pie") has a more simplified version, without vapor barrier, photo 3. Snow on the "cold" roof begins to melt only in the sun or at relatively high temperature air.

The main characteristics of the "cold" roof:

good ( minimum value heat loss or completely absent).
-5 ° C and more.
Anti-icing systems installation area: only in the gutters.
Peculiarities: the roof often has an under-roof ventilation layer.

Photo 3. The structure of the "cold" roof

"Warm" roof (residential attic)

"Warm" roof involves the use attic space like the living space of a house, photo 4... In this case, to prevent the intensive formation of icicles on the roof, a roof of a more complex structure should be arranged. The roof structure should have the following layers, photo 4:

vapor barrier layer;
waterproofing layer;
layer air gap(ventilation gap);
a layer of roofing insulation (for housing with a thickness of at least 250 mm).

Photo 4. The structure of the "warm" roof

When making a pie warm roof all engineering requirements for the choice of insulation thickness and ventilation gaps should be followed.

The main characteristics of a "warm" roof:

Roof insulation condition: satisfactory.
Minimum temperature for melting snow or ice:-10 ° C and more.
Peculiarities: heating cables should be used with increased power in the range of 25 ... 30 W.

Hot roof

Hot roof- this is a roof with poor thermal insulation, which is associated with a violation of technical standards for the design and construction of a house.

The main signs of a "hot" roof:

Roof insulation condition: poor (due to high values of heat loss, attic living quarters or premises used for other purposes).
Minimum temperature for melting snow or ice: below -10 ° C.
Anti-icing systems installation area: complex application, installation in gutters, gutters and on the roof itself.

How to get rid of icicles on the roof?

Consider the most common means and methods of combating the formation and removal of icicles.

There are the following measures to combat icicles:

warning or preventive actions;
measures aimed at the direct removal of icicles.

1.Preventive (preventive) measures to prevent the formation of icicles

Preventive measures to avoid icicle formation include:

Thermal insulation different types attics and roofs.
Reconstruction of roofs and roof drainage systems.
Application of anti-icing coatings.
Installation of heating systems for eaves and gutters of the following types:

electrical heating system;
water heating system;
steam heating system;
air heating system.

2. Measures aimed at the direct removal of icicles on the eaves of the roof

Activities aimed at the direct removal of icicles include:

removal using a steam generator that emits superheated steam;
removal with the help of a thermo-cornice arranged around the perimeter;
mechanical removal methods;
ultrasonic removal methods.

One of the options for dealing with icicles is additional insulation roofs with inside. High efficiency has roof insulation with liquid polyurethane foam, photo 5.

Photo 5. Roof insulation with foamed polyurethane, as one of the methods to combat icicles on the roof

Method: Mechanical cleaning of the roof from icicles

Nowadays, they try not to use mechanical cleaning of icicles on the roof, since it has a number of disadvantages, namely, photo 6:

high labor intensity of work to remove icicles;
high probability of damage to the integrity of the roof and its individual elements;
increased risk of injury (high altitude and risk of slipping).

Photo 6. Mechanical cleaning of icicles on the roof

Method: Anti-icing cable

Cable protection It is used to reduce the likelihood of icicles formation, as well as to remove them from the ridge of the roof and watercourse systems. The main purpose of the cable protection is to prevent the accumulation of snow on the roof. The principle of operation of cable anti-icing protection is to heat the cables to the right temperature melting snow and ice. The cable protection operates on an electrical voltage of 220 V.

The cable is laid on the roof according to such schemes, photo 7:

along the entire perimeter of the roof;
in some local places of the roof;
along the gutter and gutter.

Photo 7. Laying heating cable: a) in the gutter and watercourse channels; b) in the area of the roof overhang; c) laying in the valley area

Anti-icing cable protection consists of (photo 8):

Heating cable. It is laid in places of the roof where icicles can form, namely:

along the contour (edge) of the roof;
all over drainage system in gutters and gutters.

Fastening elements... For fastening the heating cable and other elements of this protection, special fasteners are used, eliminating the need for making holes in the roof - duct tape or clamps.
Control and monitoring unit, which includes:

precipitation sensor;
ambient temperature sensor;
defrost water sensor.

If the control unit fixes the values of the parameters at which the formation of icicles can occur, the protection system is automatically turned on.

Distribution network Is a wiring system, thanks to which the heating cables are connected in electrical network nutrition.
Remote Control- a device thanks to which you can control the operation of the entire device.

Photo 8. Components of anti-icing cable protection: a) heating cable; b) control and monitoring unit

Let's list the most basic advantages of cable anti-icing protection:

There is no need to change the roof structure.
Does not spoil the aesthetic appearance of the roof.
Can be applied on different types roofs.
The possibility of laying in local places of the roof or around the entire perimeter.
The system can significantly increase the life of the roof.
Automatic control and management system for cable anti-icing protection. Also, the system automatically turns off the protection if it is not needed (no snow on the roof or the temperature is below melting snow).
Long service life of the equipment.

Here are some of the disadvantages of cable anti-icing protection:

High power consumption of the system (for example, the consumption of a system with an area of 75 m 2 will be about 3 kW or 10 ... 30 W / m.).
Arises additional problem ice formation on the ground near the house.
High cost of equipment (approximately 8 ... 30 € / lm, excluding the cost of power supplies).

There are several types of anti-icing cable protection:

Cable with self-regulatory - has the ability to change the operating mode, and therefore the amount of energy consumed, depending on changes in weather conditions.

Self-regulating cable advantages:

Reduced power consumption.
High degree of reliability.
Increased protection against overheating and short circuit.
Sufficient resistance to UV rays of the sun.
Resistant insulation against mechanical damage.

Resistive cable It differs mainly in that it has a constant heating power.

Disadvantages of a resistive cable:

Cable overlaps are not allowed.
Length restrictions.

Requirements for the condition of the roof, before installing anti-icing systems:

the roof must be strong and reliable;
no damage or leakage.

One of the new technological developments to prevent the formation of icicles on the roof and in the watercourse system, which provides for the combination of a downspout with warm wall building, which is additionally insulated. The walls of the house transfer an insignificant amount of heat (by a few degrees), which prevent melt water from freezing and the formation of ice and, in particular, icicles. Such a device drainpipes justified only in regions with warm winters.

Method: Ultrasonic destruction of icicles on the roof

The delivery of an ultrasonic pulse using a special device leads to the destruction of icicles.

Benefits of Ultrasonic Destruction of Icicles

Less power consumption compared to cable shielding.

Disadvantages of ultrasonic destruction of icicles

Highly high price use of special equipment (approximately 200 € / lm).
This method allows only to remove icicles from the roof, and not to exclude their appearance.

General conclusion: in most cases, the reason for the formation of icicles on the roof is the poor thermal insulation of the roof. Experts in this industry argue that with good thermal insulation and compliance with all design standards and construction rules, it can reduce the intensity of icicle formation by 80%, which greatly facilitates or even excludes the use of various methods of dealing with icicles.

Alexander A. Konev

Grows above the window
Winter carrot.
Her winter is winter
I planted for myself,
Raised until spring.
(icicle).

It's gotten a little warmer
Mother winter planted by the window
For myself, seedlings.
And how will the thaw pass
That seedlings will sprout
And until the sun's rays
Will sing, and then -
Turn into a stream.
(icicles).

As the cold stands, she is so glad
And like the sun spring will rise –
So she cries all day long.
(icicle).

Hanging over the porch -
Glitters, glitters.
And you will bring it into the house -
Turn into a stream
Yes, running on the floor.
(icicle).

Grows above the window
Ice carrot.
Spring will come -
Whole harvest
Will turn into a trickle.
(icicles).

Winter is already coming to an end
And, everything earlier every day
The spring sun is rising.
But, some are not happy about that
And her tears pour from the roof
A whole hail! (icicle).

Spring is coming, and she, stupid, sheds tears!
Yes, and how not to cry to her -
With every sunbeam
She's getting thinner!
(icicle).

The sun is warming more and more
And she is getting thinner.
(icicle).

Yesterday it got a little warmer -
Spring is already close
And the sun warmed me up.
And at night the frost came
Large white nails
He hammered us into the roof.
(icicles).

Sisters live under the roof -
One hangs above and the other below.
(icicles).

Spring has come -
An old winter woman met her.
They argued all day
About whether the winter days are over.
Spring beauty brought warmth
And the old woman is winter at night sometimes
I walked through the courtyards with frost,
Yes, gifts are parting
She hung it all over the roof.
And as the sun rises
Then spring will take them all away.
(icicles).

What a strange carrot:
Grows on the roof
Breathes winter cold.
(icicle).

Hanging white lollipop on the roof.
I ate it once
And he fell ill with a sore throat.
(icicle).

The sun rose - she sobbed.
(icicle).

Frost stood - she shone,
And how the sun began to warm,
Then she began to sob bitterly, poor woman.
(icicle).

At night, frost hung on the roof
Garlands round dance.
And the morning has come - the sun has risen
And took off the garlands.
(icicles).

It does not grow in the ground on the ridge,
And on the roof, but on the window.
She does not sing in the summer,
And in winter, it is warmed by frost.
(icicle).

That's winter harvest –
Grew up here on the roof.
Sun, come out -
Collect ice cones!
(icicles).

What the strange plants?
They don't need fertilizer.
They do not need to be watered.
And they don't need the sun either -
They are happy with the cold
And how will it get warmer,
That will melt, to everyone's surprise!
(icicles).

The sun came out from behind the clouds and it looks:
Here, winter has grown its seeds again!
The sun will begin to warm them with rays,
And they will cry, disappear -
What a marvel!
(icicles).

Other riddles:

Icicle

Several interesting children's riddles

Kangaroo riddles for kids with answers
It strains its hind legs, As if it flies in the air. Ears upright, icicle tail. Belly bag, tall. (kangaroo)

Winter has come into its own, and apart from wonderful holidays, ice and icicles on the roofs of houses await us. These winter trappings are a common cause of property damage and even accidents. Let's see why ice and icicles appear on the roofs of our houses and can we avoid it?

How do icicles appear on our rooftops?

If the thermal insulation of the attic or the space under the roof of the house is not made correctly, then not only significant heat loss occurs when heating the house, but also ice and icicles are formed on the roof and eaves. Snow falls and accumulates on the breathable roof. It begins to melt, and the resulting water flows down pitched roof... At the edge of the roof, on the cornice, the temperature is significantly lower, and the water begins to freeze slowly, forming icicles and ice. This mass not only deforms structural elements roofs, but also fraught with danger to the health and life of the residents of the house.

The main reasons for the formation of icicles and ice:

Inadequate ventilation of the attic;
Incorrect insulation of the roof or ceiling of the attic;
Excessive vapor permeability of heat-insulating material.

Why does the snow melt on the roof?

You probably wondered: why on the roof of one house the snow lies intact all winter, while on the other house the whole roof is hung with icicles?

When heating the house warm air rushes upward. It accumulates in the space under the roof and, if the thermal insulation is not performed correctly, then warm air penetrates through the roof structure. Thus, the roof begins to heat up and the snow melts, turning into water. Moisture flows down the cornice, cools and transforms into icicles and ice. Based on these facts, you can draw the following conclusion: a house, on the roof of which the snow does not melt and there are no icicles, is properly insulated.

How can ice and icicles harm your home?

Poor quality heat and waterproofing of the roof can cause the formation of not only dangerous icicles, but also serve as a reason for the deformation and leakage of the roof. As a result, moisture begins to penetrate inside, which is fraught with wetting of the insulation, ceiling and walls. Wet insulation loses its thermal insulation qualities. Wet walls and the ceiling freezes or serves as a favorable environment for the growth of fungi and mold.

There is a solution!

All these unpleasant phenomena will bypass your house if you take care of the correct insulation of the roof of your home. One of the best thermal insulation materials for external and internal insulation the roof is foamed polyurethane foam. This modern and high-tech material allows you to create a strong, monolithic, lightweight and durable coating with unsurpassed thermal insulation and waterproofing properties. PPU coating allows you to forget about freezing, roof leaks and will significantly save your expenses on heating your house. A clear proof that PU foam works more efficiently than other insulation materials is the complete absence of icicles on the roof of your house.

Any child is, by nature, very curious. Therefore, going out into the courtyard in the early frosty morning, the first thing that catches his eye is an icicle. Unusual, transparent and sharp "carrot" attracts children of all ages.
Kids begin to ask a huge number of questions, older children pull them into their mouths, and adult guys knock them down with furious pleasure.

Just on such a walk, riddles about an icicle will come in handy, which describe almost all the features of this unusual natural phenomenon. Solving them, the child will be able to gain new knowledge in a playful and unobtrusive manner.

Silver Carrot
Clung to the roof deftly.
Clung to the cornice
And it grows down in winter ...
(Icicle)
Under our very roof
The white nail grows
But as the sun rises
The nail will melt, fall ...
Carrot made of ice in winter
I sat down on the cornice deftly.
And when spring came
all flowed away.
(Icicle)
It grows upside down
It does not grow in summer, but in winter.
But the sun will bake her
She will cry and die.
Our silver dagger
I did not lie in the house for long -
We wanted to raise it
And he ran to the threshold ...
Caught on the cornice
The head hangs down.
Little acrobat,
Winter candy - ...
If the sun melts during the day
If it's winter again by night
What, tell me, grows
On trees and houses?
The sun is getting higher by spring.
still on the roof.
The luminary pulled up
Yes, and melted the snow,
Water is dripping from the roof.
In the morning - a cone of ice.
(Icicle)
A long nail hangs from the roof -
Cold, strong as a bone
But if the sun bakes,
He will run out in tears ...
I live under the roof
It's even scary to look down.
I could have lived higher
If only roofs were found there.
Lollipop hanging under the roof
Spring will come - it's the end.
Will begin to gurgle with water
And it will fall ...
(Icicle)
Freeze in winter
And they hang from the rooftops,
Will sparkle in the sun
Spring will come - it will melt.
Hanging outside the window
Ice bag.
It is full of drops
And it smells like spring ...
Thin and transparent
Strong, cold
And the sun will warm up
It will melt.
(Icicle)
Don't suck, tomboys
Ice lollipops!
I swallow pills myself
Because I ate ...
Winter on gray roofs
Throwing seeds -
Grows white carrots
Under the roofs, she ...
Icy, whiny Nose
Sadly rooted to the roof.
Tearfully upset
That Winter is ending ...
Long claws descended
From the roofs in the winter of all houses ...
The sun has just appeared, -
That claw is ready to cry ...
Crying in drops, and bitter ...
There are no claws ... And there were so many!
(Icicles)
The young guy knows
Knows the gray-haired
All grannies know
Everyone knows:
What's growing upside down?
This is indeed …
Hanging from the roof
Like ice bullets
They breathe the threat of quiet
Spring ...
(Icicles)
I grew thin and thin,
Is it really sick?
The sun bakes tenderly
A tear flows from her ...
Who is on the roof of the house in winter
Clung to the cornice ...
And it grows in a fighting way,
Going from top to bottom?
Who sparkles in the early morning
And shines in the sun
And with cold tears
Cries and knocks on the window.
Who, guys, tell me
Knows this pendant?
Feel free to name
What is her name? ...
(Icicle)
Hanging under the roof
If you break it, it crunches.
Freezes in winter
The tear does not flow
The sun will bake -
It will cry, it will flow ...
Grows upside down
Only in winter, not a whole year.
Hangs from the roofs very deftly
This snow carrot.
Not a snowflake, not a whistle,
This is a large ...
(Icicle)
In essence, she is water.
You can guess without difficulty:
Like a crystal pendant
Hanging from the roof ...
(icicle)
-Oh, what! Transparent glass,
Patterned pendant.
On wires and roofs
Cheerful …
If the snow melts on the rooftops
Then the sisters grow up.
These winter sisters
Cold, transparent, calls,
And they grow upside down.
Don't stand under them!
Hangs down from the roof
Sharp flyer.
Drops down
Wet ...
(Icicles)
The carrot is white
It grew all winter.
The sun has warmed up -
I ate all the carrots.
Clinging to the cornice
Drops droplets down
Not a toy, not a whistle,
And transparent ...
Appears in spring
And grows upside down
Or rather, only the nose grows
If at night.
All transparent beauty
Hanging like crystal ...
(Icicle)
It was a simple, ordinary house
What has changed in him?
There was a decoration -
People are all surprised:
Fragile and strange
Glass fringe.
I waited for the first snow
I ran, jumped and played.
Now I'm drinking a potion
Because I ate ...
Sometimes it happens in winter
The weather is very different.
Then suddenly the sun will come
Then the weather is raging.
We always come to the thaw
Very wet from a walk.
And then hang down in the frost
Huge from the rooftops ...
Grows upside down
Only in winter, not all year round.
And in the spring drops
Cries bitterly all day.
All transparent, like a piece of ice,
Sharp-nosed ...
(Icicle)
Sharp, prickly
From the heat - weeping.
Hang from the rooftops
Those pendants -
Very long ...
From top to bottom it grows at night
And in the daytime he splashes with tears.
With overflows Visulka ...
What is her name? ...
(Icicle)
Vladimir-Georgy Stupnikov

Short riddles about the icicle

The sun will eat - the end of winter
Silver Candy ...
(Icicle)
The sun will come out - it will cry.
There is no sun - it hides tears.
I cry from the sun.
I cannot do otherwise.
Ice Fringe
Decorated at home ...
White carrot
It grows in winter.
Ice lollipop
The sun has eaten ...
(Icicle)
The children sat on the cornice
And they grow down all the time.
That grows upside down
Clinging to the cornice ...
A white nail sticks out of the roof.
The sun will rise,
And the nail will fall.
What grows upside down?