GEALAN's systems windows - good choise for you.
This is GEALAN's window qualitys:
- Good sound isolation
- Good heating isolation
- Double pack system
- Durability
- Simple care
- Energy saving
- Minimal heating
- Color variety
- Profile strength
- Reliable safety
- Economic
- Big installing depth (62 mm.)
- Easy to clean
- Possibility remake
- Not harmful for enviroment
Profiles are strenghthen with zinc steel core, and has high heating isolating characteristic. |
Three isolating chambers perfect holds sound. Two glass packet holds not less then 28dB noise. Three glass packet holds not less then 30dB noise.
Strong sounds sometimes not bearable. Look to noise limits:
|
|
dB
(A) |
|
|
1 |
 |
20 |
|
|
2 |
 |
30 |
|
|
3 |
 |
50 |
|
|
4 |
 |
70 |
|
|
5 |
 |
80 |
|
very loudly, not bearable
|
6 |
 |
90 |
Disc saw from 1 m distance
|
very loudly, not bearable
|
7 |
 |
100 |
|
very loudly, not bearable
|
8 |
 |
120 |
|
very loudly, not bearable
|
9 |
 |
150 |
|
very loudly, not bearable
|
|