Stc Concrete Block Wall

These tests have indicated a direct relationship between wall weight and the resulting stc heavier concrete masonry walls have higher stc ratings.

Stc concrete block wall.

A stc rating of 55 is required for inter tenancy walls. In general the stl of a concrete masonry wall increases with increasing frequency of the sound. 8 concrete block wall painted with 1 2 drywall on independent steel stud walls each side insulation in cavities stc prediction edit there are several commercially available software which predict the stc ratings of partitions using a combination of theoretical models and empirically derived lab data. 8 concrete block hollow core no wall finish.

Within a dwelling an internal wall with a stc rating of 45 will usually muffle television telephone ringing and conversation in an adjoining room. Stc ratings for masonry cmu walls is based on weight of the block and whether the cells are filled or not and what material it is filled with. Estimated stc ratings for cmu walls wall thickness in. A wall floor or roof.

Typical wall construction with 1 layer of 16mm 5 8 plasterboard on each side of 95x35mm 4 x 11 2 timber studs. 8 concrete block hollow core painted 2 coats 2 sides. Determining sound transmission class stc for concrete masonry. The higher the rating the greater the degree of noise reduction.

Sound transmission class stc provides an estimate of the acoustic performance of a wall in certain common airborne sound insulation applications the stc of a wall is determined by comparing sound transmission loss stl values at various frequencies to a standard contour stl is the decrease or attenuation in sound energy in db.