Roof Styrofoam Insulation Stc Rating

Impact insulation class sometimes referred to as impact isolation class retrieve content.

Roof styrofoam insulation stc rating.

In a typical 2 x 4 wall with a single layer of 1 2 drywall on each side tested stc. O cellulose stc41 o fiberglass or mineral fiber stc38 o icynene stc37 o the installed performance in batt insulation systems is typically well below that of their tested. Styrofoam has no stc rating because it is not specifically marketed as a soundproofing material. A high stc rating of 50 indicates that the wall is virtually soundproof.

This assembly had an epdm membrane 5 8 securock gypsum fiber cover board two layers of 2 insulation 5 8 securock gypsum fiber thermal barrier and a 22 gauge steel deck. Project is within an air force approach zone. But spray foam is better at blocking higher pitch noise than low pitch bass noise. Cellulose insulation outperforms all other insulation systems for sound attenuation.

They generally range between stc 40 and 50. The floor muffler sound transmission class stc sound transmission class stc dated 8 18 05 code. The stc rating for open cell foam is 39 and the closed cell has an stc of 37. Note from this chart that the ideal r value differs for each part of your home.

Stc rates a partition s or material s ability to block ubc requirements for floor ceiling assemblies. Separating dwelling units must meet a sound transmission class stc rating of 50 or 45 for field tested assemblies tested in accordance with astm e90. Zoning overlay requires roof wall stc 65. Open cell oc spray foam for sound attenuation in new construction.

Stc ratings of 50 if tested in a laboratory or definitions. The same code states that floor ceiling assemblies between dwelling units or. Below is a typical roof assembly that we tested and achieved a stc rating of 41. However due to its absorbent quality styrofoam insulation can raise the stc rating of a wall when used as a form of insulation.

I d recommend the spray in ceilings and inside wall cavities to reduce sound transfer and dampen sound. Will also be providing acoustical ceiling grid tiles throughout. For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.

This foam board insulation is available with straight or tongue and groove edges to help limit air movement. Combine it with mineral wool or fiberglass and you ll have an excellent sound absorbing barrier.