The glass types listed below are included in the laminated glass offering.
Stc rating laminated insulated glass.
There are different ways to improve the stc rating of windows.
Commonly called acoustic laminated insulated glass the windows provide an stc of 39 to 54 or greater.
When using insulating glass units there are several options available including increasing glass thickness.
The american society for testing and materials astm developed the outdoor indoor transmission class oitc to describe the sound isolation performance of materials.
The performance data below applies to an insulating unit constructed with two plies of glass and an air or argon filled space.
This is especially useful in areas near airports industry traffic or wherever unpleasant sounds exist.
Oldcastle buildingenvelope offers a variety of glass products to meet your architectural glazing design needs.
Increasing the air space.
Glass product type and thickness stc rating oitc rating monolithic 3 32 26 1 8 29 31 29 36 33 sealed insulating glass units 1 8 glass air 1 8 glass 28 26 glass air glass 35 28 glass 1 air glass 37 30 laminated glass with 0 030 pvb interlayer 1 8.
Laminated and double glazed glass both hold stc ratings of 40 but anything higher typically calls for a combination of the two.
Here we introduce a simple formula to calculate the glass stc sound transmission class.
Stc ratings chart acoustical performance of glass and wall constructions overall thickness inside construction space outside stc value iso rw 3 1 4 7 24 mm 1 8 0 030 p v b.
The key to achieving significant sound wave disruption in an igu is to have as large an air gap as possible less than 12mm air gap will provide an stc no better than thick glass.
Data is based on testing 36 x 84 glass to astm e413 87 in an acoustical wall.
Laminated glass is an effective way to reduce unwanted outside noise.
Oitc is estimated based on this test.
See additional notes below data for specific.
Double glazed glass can also provide an stc rating of up to 40 but is typically even more expensive than laminated glass and only used for exterior applications.
The cost however may be prohibitive.
And using different.
And to have the two panels of glass vary in thickness by at least 50 so a 10mm panel on one side and a 5mm on the other.
Evaluating different gas fills spacers and sealant materials.
The best sound reducing windows have dissimilar laminated plates with a wider air gap between the glazing.
How to increase window stc rating.
Please contact oldcastle buildingenvelope for product availability and performance data as this information is subject to change without notice.
Monolithic glass laminated glass double insulated glass triple insulating glass laminated insulated glass.
Lamination and double glaze combinations.