Dual Pane Vinyl Stc

The typical rating for single pane windows is 18 20 while a double glazed window is 28 32.

Dual pane vinyl stc. Single hung and picture windows are now available with a glass package that achieves an stc 35 while sliding windows achieve an stc 34. When good thick dual pane windows rated at stc 35 are installed replaced existing single pane windows with stc 27 the sound will not be reduced much. With stc rating the higher the score the less noise can penetrate. In fact dual pane windows with dissimilar glass can achieve stc ratings nearly as high if not as high as triple pane or laminated glass.

At jeld wen for example we offer a variety of dissimilar glass combinations on our vinyl windows that carry up to an stc 34 rating. In the second test the inherent problems of dual paned glass likely contribute to degrade the vinyl window performance. Single pane windows have an stc of 26 28 while double pane ones have 26 32 ratings. Read the definition of stc rating.

Triple pane windows have less space between panes of glass which actually works to their disadvantage when it comes to. As you can see in the diagram indow inserts combined with a single pane window block noise better than an insulated wall. Double glazed windows and vinyl frames can help. Single pane 1 8 has an stc between 21 and 28 and is commonly 27.

Dual pane windows will not stop noise. In the third test where the results are almost identical the vinyl frame is substantially thicker and is probably the reason for the good performance. Single pane 1 4 has a sound transmission class between 30 and 32 and averages 31. Sound transmission class stc stc is used to measure a window s ability to reduce sound.

Sound transmission class stc ratings for glass vary from poor to practically soundproof. Double pane windows with dissimilar glass where the two panes of glass are different thicknesses can have even higher ratings. Single pane 3 8 averages 31 but could have an stc of 33 or 35. Standard monolithic or single pane glass is the cheapest option and works well for most interior applications.

Milgard quiet line windows can achieve an stc rating of up to. Glass by itself is a weak noise insulator but methods such as lamination or double glazing can improve performance significantly. The higher the rating the better the sound control. Most window companies do not know much about noise.

Often until the stc rating is up in the 40 s the noise is not reduced enough to stop it from being a significant problem.