Wallpapering works
In what respect should wallpapers be checked before starting wallpapering works?
Before commencing wallpapering work, be sure to check:
1. Is the number of rolls of wallpaper …
Coatings on cellular concrete
Partition walls in the new building are made of cellular concrete. Please list the steps involved in filling and painting the wall with dispersion paint
These activities are …
Coatings on external plasters
Coatings on external plasters
The old one was chained on the old church, The exterior plaster was destroyed and replaced with new plaster, made of PII group mortar. Medium-grained rapped plaster …
Solar panels
Collectors in active systems do not have to be integral parts of the building.
Collectors are produced to be placed on the ground or on any other, flat building surfaces (terrace, roof). With unfavorable …
Design and architectural conclusions of solar collectors
Design and architectural conclusions
Polish design guidelines require the calculation of the demand for domestic hot water. 150 dm3/day/person, at 55°C. Western standards speak of equal demand 60 dm3/day/person, about the temperature …
Indirect profit system. Lightweight thermal walls, heavy, swimming pools as absorbers of solar radiation
The use of solar energy in indirect systems consists in placing elements that receive radiation just behind the glazing. Solar radiation with a wavelength of 0,3 do 3,0 μm i …
Coatings on fibre-reinforced cement boards
When testing a substrate made of fibre-reinforced cement boards (they are not asbestos cement boards) efflorescence was found on individual elements, residues of release agents as well as algae and lichens. What activities should be planned for …
Compilation system - greenhouses
One of the three basic passive systems is the compilation system, combining direct and indirect way of heating rooms with solar radiation. It depends on this, that the sun's rays penetrate through the glazing …
Volume concentration of pigments (SOP)
Volume concentration of pigments (SOP) it is the ratio of the volume of the pigment to the sum of the volumes of the pigment and the binder, expressed as a percentage.
How some properties of the coating change as the SOP increases?
as far as …
Painting the old facade
Build elevation, recently painted 10 years ago, should get a new coating. Made in 1955 r. rapped plaster with medium graining does not show any damage, but on smoothly obliterated pilaster strips they are …