According to the estimates of experts, about 30% of heatlosses of the house happen through ceiling and roof. Warming of roof allows to reduce these losses. It is only necessary to mean that along with roof it is necessary to carry out also thermal insulation of pediments. The warmed attic which is the buffer between premises and external space allows to preserve heat in cold season and cool – in roast.
It is required to you
- - heater from mineral wool 100-150 mm thick;
- - vapor barrier;
- - wooden rails;
- - set of the construction tool (saw, hammer, axe and so forth);
- - long sharp knife;
- - adhesive tape;
- - fixture (nails, construction buttons).
Instruction
1. The technology of thermal insulation of roof depends on when warming is carried out – along with construction of roof or after its device. When warming ready roof, heater keeps within from within the attic. If the roof latten represents continuous flooring (under soft roof), attach to it between rafters from top to down on all slope two-three spacing rails about 30 mm thick equally spaced. Rails will prevent dense adherence of minvata to furring and will provide air circulation between waterproofing and heater. It becomes if for any reason moisture from above will get to heater. When fastening rails take care of that fixture did not leave on the other side of furring, otherwise it will damage waterproofing. If obresht is rarefied (under slate, steel sheet and so forth), spacing rails can be not beaten.
2. Lay sheets of mineral wool between rafters. It is the best of all if rafters are located at distance of 580 - 600 mm from each other. In this case the sheets of heater having standard width of 610 mm will enter between rafters densely and will keep on the place without additional fastening. If the step of rafters differs from the specified values, cut minvata on pieces of the necessary sizes and record them the rails beaten in rafters. Carry out cutting of heater long sharp knife on the rail attached to minvata. Cut heater with small stock (10-20 mm) for providing dense adherence of sheets of minvata to each other and to rafters.
3. Lay vapor barrier on heater, fixing it to rafters construction buttons and adhesive tape. Glue joints between layers of vapor barrier with the glued tape. Try to provide full tightness of paroizolyatsionny layer, in case of breaks of film stick it with tape.
4. Before beating internal covering (counterfurring) to roof, provide between it and heater gap. It becomes with the same purpose of ensuring air circulation and drying of heater if moisture gets to it. If mineral wool drowns in relation to surface of rafters, beat covering (lining, fibreboard and so forth) directly to rafters. If minvat is at the level of rafters or even acts from them, then beat to rail rafters thickness, bigger than heater ledge size, and then beat covering to rails.