Stc Steel Roof

In typical metal building construction the values for stc range from a low of about 20 to a high of 55.

Stc steel roof.

The standard requires a minimum laboratory stc rating of 50 for party walls and floor ceilings. Steel cornerbead 1 1 2 38 mm flanges applied with 1 25 mm type s. Trusses supporting metal roof deck panels covered by 1 2 12 7 mm regular gypsum sheathing either loose laid or adhesively or mechanically attached to roof deck. Building is utilizing common wood trusses with concrete tile roofing and insulation directly beneath roof deck to avoid venting read penetrations.

Zoning overlay requires roof wall stc 65. Sound transmission loss properties of a wall or roof is the sound transmission class stc. This is usu ally because there is a pronounced dip in the test curve and the stc rating is heavily influenced by a measurement in one fre quency band. Will also be providing acoustical ceiling grid tiles throughout.

Fire resistance ratings for veneer and conventional systems can minimize or eliminate irregularities such as ridging boarding and nail pops associated with standard drywall. 6122 benjamin road tampa fl 33634. Insulation thickness has a more significant effect on stc ratings than does density for a typical steel stud wall construction the first inch of fiber glass insulation can increase the stc value 6 or more points each additional inch of fiber glass insulation increases the stc value from one to two points conversely density variations have minimal effect on the stc rating see table 2. Project is within an air force approach zone.

One layer of any 5 8 15 9 mm densarmor plus fireguard panel applied without horizontal joints and parallel to 1 5 8 41 mm steel studs located at each corner of ts8x8x0 250 tube steel column with 1 25 mm type s drywall screws 24 610 mm o c.