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)	Sound and noise	Our apprehension
1		20	Leaves rustling / Rain	very quietly
2		30	Usual enviroment sound	quietly
3		50	Normal talk	standart sound limit
4		70	Car noise	loudly
5		80	Street sound	very loudly, not bearable
6		90	Disc saw from 1 m distance	very loudly, not bearable
7		100	Car signals	very loudly, not bearable
8		120	Aircraft engine	very loudly, not bearable
9		150	Apprehension limit	very loudly, not bearable