Do-it-yourself step-by-step instructions for warming a balcony with your own hands


A city apart­ment is a fair­ly lim­it­ed liv­ing space. Hap­py own­ers of new apart­ments, own­ers of apart­ments in old build­ings seek to expand their own pos­ses­sions by any means. Almost every full-fledged apart­ment has a bal­cony, which, in the process of refur­bish­ment and insu­la­tion, can be made a sig­nif­i­cant addi­tion to the exist­ing liv­ing space. In addi­tion, open bal­conies often become the only place in the apart­ment through which pre­cious heat escapes in cold weath­er. How to make a warm bal­cony in your apart­ment, cozy and com­fort­able, how to insu­late the bal­cony with your own hands — let’s try to fig­ure it out in detail.


To do this, we offer a step-by-step guide to action, rich in effi­cient, prac­ti­cal com­ments. Each pho­to will allow you to get a visu­al idea of ​​what needs to be done and how to do it.

Analy­sis of the deci­sion made. Care­ful prepa­ra­tion at work

The main prob­lem that needs to be solved first of all is to avoid the typ­i­cal mis­takes that many apart­ment own­ers make when try­ing to insu­late their bal­cony in a hur­ry. Tech­ni­cal issues should be tak­en seri­ous­ly, start­ing with a thor­ough and detailed analy­sis of the cur­rent sit­u­a­tion. Those. give your­self answers to the fol­low­ing ques­tions:

  • what is your goal;
  • what finan­cial expens­es are you will­ing to bear when try­ing to insu­late a bal­cony or log­gia;
  • in what for­mat is the insu­la­tion planned, cold or elite;
  • how quick­ly you want to real­ize your idea.

The main thing is not to rush in pur­suit of extra square meters. A warm bal­cony should even­tu­al­ly become not just anoth­er pantry for house­hold rub­bish, but a full-fledged cozy room. Sim­i­lar tasks are faced by res­i­dents of apart­ments, in the lay­out of which there is a log­gia. Rush­ing may not lead to the results you expect. Often there are sit­u­a­tions when a glazed bal­cony equipped with an elec­tric radi­a­tor remains cold and uncom­fort­able. The mon­ey invest­ed in insu­la­tion is, by and large, wast­ed. To avoid such a sit­u­a­tion, it is nec­es­sary to treat each stage respon­si­bly.

Using our tips, you will get the answer to your ques­tion. How to insu­late your own bal­cony with your own hands, using a step-by-step pho­to, what are the reg­u­la­tions for warm­ing work.

Step one — balcony glazing

By choos­ing the appro­pri­ate option for bal­cony glaz­ing, you solve one of the main tasks. High-qual­i­ty glaz­ing will allow you to save heat in the apart­ment by block­ing the access of cold air into the liv­ing space. A good bal­cony frame will elim­i­nate drafts in your apart­ment once and for all. A closed insu­lat­ed bal­cony adds a feel­ing of secu­ri­ty to the inhab­i­tants of the apart­ment, expands the hab­it­able space, opens up oppor­tu­ni­ties for fur­ther con­ver­sion of the bal­cony into a win­ter gar­den or a rest room.


Read also about the insu­la­tion of bal­cony walls with your own hands.

The best option in this sit­u­a­tion is to turn to the ser­vices of spe­cial­ists. Today, there are a huge num­ber of firms and com­pa­nies on the mar­ket that are ready to glaze your bal­cony in a mat­ter of days. The choice of mate­ri­als and glaz­ing options is quite wide. In each indi­vid­ual case, the own­er of the apart­ment choos­es which glaz­ing option suits him, both tech­ni­cal­ly and eco­nom­i­cal­ly.

The first step to effec­tive insu­la­tion of the bal­cony is a good bal­cony frame. Today, the con­sumer is offered a vari­ety of glaz­ing options using tra­di­tion­al dou­ble-glazed win­dows and end­ing with wood­en struc­tures. A sim­ple wood­en frame is suit­able for cold glaz­ing, as is the sin­gle glass option in win­dow units.

On a note: cold type of bal­cony glaz­ing is often used in apart­ments with two or more bal­conies. Installing a con­ven­tion­al frame will pre­vent the impact of pre­cip­i­ta­tion on the bal­cony and shel­ter from the wind. In terms of main­tain­ing tem­per­a­ture, cold glaz­ing plays an insignif­i­cant role. The tem­per­a­ture on such a bal­cony is only 2–5 degrees high­er than out­side.

For seri­ous insu­la­tion, dou­ble-glazed or triple-glazed win­dows would be an ide­al option. It all depends on the finan­cial side of the issues. The price must match the qual­i­ty of the prod­ucts. Mod­ern wood­en dou­ble-glazed win­dows are an expen­sive plea­sure, how­ev­er, such an invest­ment will pay off in the future. The most impor­tant thing is that the bal­cony frame does not freeze in the future, oth­er­wise it will be nec­es­sary to install addi­tion­al seals on the glass. A warm bal­cony will become a real­i­ty if it is pro­tect­ed from exter­nal influ­ences by a reli­able and durable bal­cony frame.


Impor­tant! Before choos­ing the type of bal­cony glaz­ing, pay atten­tion to the para­pet. Whether it has suf­fi­cient strength and whether it can with­stand a mas­sive struc­ture. In some cas­es, espe­cial­ly in old-built hous­es, addi­tion­al work has to be done to strength­en the para­pet.

Pref­er­ence in the insu­la­tion of the bal­cony is giv­en to dou­ble-glazed win­dows. Shut­ters can be cho­sen at your dis­cre­tion. In order to save inter­nal space, slid­ing doors can be ori­ent­ed. This is con­ve­nient, but in this case there is no good fit between the win­dow frames, which is fraught with the pen­e­tra­tion of cold air from out­side. Swing sash­es look prefer­able. Expan­sion pro­files must be installed at the top and sides of the frame, with the help of which the insu­la­tion is sub­se­quent­ly attached. Prop­er­ly select­ed bal­cony frame and instal­la­tion will prompt in the future how to prop­er­ly insu­late the bal­cony from the inside with insu­lat­ing mate­ri­als.

By cor­rect­ly cal­cu­lat­ing the area to be closed, the num­ber of doors and choos­ing a high-qual­i­ty pro­file, you can expect to get the desired result as a result. The cost of such glaz­ing is quite high, but it should not scare you. Such glaz­ing will serve for a long time, while the inhab­i­tants of the apart­ment will be sat­is­fied with the com­fort of your bal­cony.

Step two — we make the facade of the balcony

A sta­ble and reli­able para­pet, a strong bal­cony frame is the first part of the work. Exte­ri­or, or I call it, the exte­ri­or dec­o­ra­tion of bal­conies, is the same inte­gral part of the appear­ance of the whole apart­ment as its entrance hall. Prop­er and pro­fes­sion­al­ly exe­cut­ed exte­ri­or dec­o­ra­tion of the bal­cony will guar­an­tee the preser­va­tion of heat on the bal­cony. For a very long time, the legal glaz­ing of the bal­cony and its exte­ri­or fin­ish were the sub­ject of dis­cus­sion and the final deci­sion of a spe­cial com­mis­sion that eval­u­at­ed the appear­ance of the bal­cony. Now oth­er times have come and the exte­ri­or dec­o­ra­tion of the bal­cony has become the most com­mon­place. New build­ings in our cities, which are being put into oper­a­tion, have already glazed bal­conies, with facade dec­o­ra­tion.


What is the exter­nal dec­o­ra­tion of the bal­cony for? So to speak. To whom, no mat­ter how dear it will be to you to look at your bal­cony from the street, with­out ceas­ing to admire it. More­over, hav­ing enno­bled your bal­cony inside, cre­at­ing a cozy, warm and pro­tect­ed space, you should def­i­nite­ly take care of the secu­ri­ty of the entire struc­ture from the out­side. A lit­tle more about how to insu­late a bal­cony with your own hands from the out­side, to make the exte­ri­or fin­ish not only an ele­ment of aes­thet­ic dec­o­ra­tion, but also an effec­tive pro­tec­tive ele­ment.

After check­ing the para­pet for strength, you can begin to per­form fin­ish­ing work. The exte­ri­or dec­o­ra­tion of the bal­cony is done using the same tech­nol­o­gy as the well-known sus­pend­ed ceil­ing device.

Impor­tant! First, a crate is applied to the entire struc­ture of the fence, usu­al­ly wood­en. Only then, sheets of fin­ish­ing mate­r­i­al are already attached to the crate itself. The mate­r­i­al that is used for the exte­ri­or dec­o­ra­tion of bal­conies has spe­cial grooves designed for dense instal­la­tion of the entire array. In order to achieve com­plete water­proof­ing of the bal­cony, the entire installed struc­ture is treat­ed in the nec­es­sary places with spe­cial sealants in order to avoid acci­den­tal mois­ture ingress into the bal­cony.


As for mate­ri­als for exte­ri­or dec­o­ra­tion, this point should be con­sid­ered in more detail. When choos­ing mate­ri­als for fin­ish­ing a bal­cony, one should take into account their resis­tance to atmos­pher­ic phe­nom­e­na and tem­per­a­ture extremes. The most famous and well-estab­lished mate­ri­als used for the exte­ri­or of bal­conies are plas­tic lin­ing and vinyl sid­ing. Both mate­ri­als have good frost resis­tance, com­plete­ly immune to var­i­ous atmos­pher­ic pre­cip­i­ta­tion. Syn­thet­ic mate­ri­als keep their col­or for a long time and do not fade under the influ­ence of sun­light. By using these mate­ri­als, you free your­self from the con­stant care of them.

Prop­er­ly exe­cut­ed exte­ri­or dec­o­ra­tion of the bal­cony, a good facade will pre­vent pre­ma­ture wear and aging of inte­ri­or dec­o­ra­tion mate­ri­als, pro­tect your bal­cony from the effects of atmos­pher­ic phe­nom­e­na.

Step three — sealing the seams, eliminating gaps between structures

Hav­ing fin­ished with the instal­la­tion of the bal­cony frame and fin­ish­ing the facade, you should pro­ceed to a thor­ough study of the con­di­tion of the para­pet and the junc­tion of the installed struc­tures to the wall pan­els. We fix visu­al­ly clear­ly vis­i­ble gaps between the frame and the para­pet, we mark small gaps with the help of an ordi­nary burn­ing can­dle. Where out­side air enters, the flame of the can­dle will fluc­tu­ate, the can­dle burns brighter. There is no need to hur­ry in this mat­ter. At this stage, at the same time, you elim­i­nate the tech­ni­cal short­com­ings made dur­ing work with the bal­cony facade.

The fur­ther ther­mal effi­cien­cy of the bal­cony space depends on how care­ful­ly you caulk the cracks, seal the gaps and seams. A res­i­den­tial apart­ment build­ing is a rather com­plex engi­neer­ing struc­ture, but even in this case there are no ide­al sur­faces. In any case, dur­ing the instal­la­tion of the bal­cony frame and dur­ing the recon­struc­tion of the para­pet, gaps and gaps occur due to ver­ti­cal and hor­i­zon­tal devi­a­tions of the wall pan­els.

In work, use a wide vari­ety of polyurethane sealants and mas­tics. Mount­ing foam will elim­i­nate large gaps. Reli­able seal­ing of cracks, holes and gaps already at this stage will show how well you did the first stage of work.

Step four — working with insulation

Hav­ing fin­ished with the main struc­tur­al work, hav­ing end­ed up with a closed space, go direct­ly to the insu­la­tion of the bal­cony space from the inside. A rea­son­able ques­tion aris­es at this stage. What is the best way to insu­late a bal­cony from the inside, what mate­ri­als should be pre­ferred? Good insu­la­tion is always good, but when using foam or min­er­al wool, you risk los­ing pre­cious inch­es of inte­ri­or space.


On a note: if you live in a region where the cold sea­son lasts for many months, you will have to insu­late with insu­lat­ing mate­r­i­al not only the floor, but also the ceil­ing, para­pet, and wall pan­els. It is impor­tant to cre­ate a sol­id array of insu­la­tion that can with­stand the cold air inside. If your neigh­bors have already insu­lat­ed the bal­cony, there will be less work for you. The ceil­ing may not be insu­lat­ed. The sit­u­a­tion is sim­i­lar with bal­conies that do not have side para­pets. There is a sig­nif­i­cant sav­ings in mate­ri­als and time.

Hav­ing cal­cu­lat­ed how much mate­r­i­al is need­ed for insu­la­tion, we decide on the choice of insu­la­tion. The insu­lat­ing mate­r­i­al must have high ther­mal insu­la­tion para­me­ters and tech­no­log­i­cal para­me­ters:

  • low flam­ma­bil­i­ty;
  • hygro­scop­ic­i­ty;
  • high man­u­fac­tura­bil­i­ty;
  • a light weight;
  • dura­bil­i­ty;
  • afford­able cost.

Today, foam is mas­sive­ly used for insu­la­tion, but we have already said. Sheets 5–10 mm thick will eat up your pre­cious insu­lat­ed square meters. Sty­ro­foam is the cheap­est option for insu­la­tion. With lim­it­ed finances, you will have to be con­tent with this mate­r­i­al. It should be remem­bered that the foam is a fair­ly thick mate­r­i­al, its dura­bil­i­ty and fragili­ty is high­ly ques­tion­able. The best way to make the insu­la­tion of the bal­cony as effi­cient and pro­duc­tive as pos­si­ble is to use min­er­al wool and foil isolon. In the lat­ter ver­sion, porous poly­eth­yl­ene is used for man­u­fac­tur­ing, which is based on a met­al film. The list­ed mate­ri­als have the nec­es­sary tech­no­log­i­cal prop­er­ties that will tell you the answer to the ques­tion of how to prop­er­ly insu­late the log­gia from the inside. Actions are car­ried out accord­ing to the same prin­ci­ple. All inter­nal pan­els in the log­gia are cov­ered with insu­lat­ing mate­r­i­al, which is eas­i­ly masked from above by dec­o­ra­tive and fin­ish­ing ele­ments. It is quite easy to insu­late a log­gia in a pan­el house if you include it in the com­mon room space.


Extrud­ed poly­styrene foam has sim­i­lar prop­er­ties. Low ther­mal con­duc­tiv­i­ty, light­ness and strength pro­vide this mate­r­i­al with the nec­es­sary tech­no­log­i­cal advan­tages in com­par­i­son with oth­er insu­lat­ing mate­ri­als.

The dia­gram shows a view of the fas­ten­ing of the insu­la­tion from the inside:


The insu­la­tion is fas­tened with dow­els or with mount­ing glue. The choice of mount­ing method is up to you. In the case of glue, the sit­u­a­tion is much sim­pler. The fix­ing area and the insu­la­tion itself are smeared with adhe­sive com­po­si­tion. By tight­ly con­nect­ing both sur­faces, we get the fin­ished pan­el. The gaps between the pieces or sheets of insu­la­tion are filled with mount­ing foam.

Impor­tant! A brand of polyurethane foam is used, in which there is no toluene.

Step Five — Installing Heaters

Hav­ing fin­ished with engi­neer­ing work, we pro­ceed to equip the bal­cony with heat­ing devices. It is not worth bring­ing cen­tral heat­ing radi­a­tors to the bal­cony, oth­er­wise the heat­ing inten­si­ty in the apart­ment will imme­di­ate­ly decrease. If your gas boil­er is capa­ble of heat­ing a large area, then in this case you just need to install an addi­tion­al heat­ing radi­a­tor on the bal­cony.

If you are think­ing about how to make a warm floor on your bal­cony, it is enough to pur­chase the nec­es­sary equip­ment and do the instal­la­tion cor­rect­ly. A small heat­ed area, good insu­la­tion of the inter­nal space, togeth­er with a work­ing under­floor heat­ing, will give the desired effect. In the absence of the nec­es­sary finances, you can get by with con­nect­ing a con­ven­tion­al elec­tric con­vec­tor or infrared heater to the out­let. In both cas­es, a small area can be eas­i­ly heat­ed by house­hold elec­tric heaters.


Hav­ing fin­ished all the work, we hang cur­tains on the win­dows, arrange the fur­ni­ture and turn on the heat­ing. Your bal­cony has become a full-fledged hab­it­able room in your apart­ment. Now in win­ter it will be as cozy and com­fort­able as in the whole apart­ment.


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