Roof Rigid Fosm Insulation Stc Rating

Sound transmission class stc is an integer rating of how well a building partition attenuates airborne sound in the usa it is widely used to rate interior partitions ceilings and floors doors windows and exterior wall configurations see astm international classification e413 and e90.

Roof rigid fosm insulation stc rating.

Polyiso is an easy cost effective sustainable and energy efficient construction material. The first step with roof installation is to prepare the roof deck by getting rid of all dirt dust and contaminants. The roof deck can be plywood metal concrete or wood planks. Choose rigid insulation wisely and consider the effect its characteristics will have on the performance of the your project overall product cost and the best way to get the bang for your buck.

Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same. R tech rigid foam insulation. It is denser than eps and provides more r value with a rating of 5 per inch of thickness. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.

R tech panels are an engineered rigid insulation consisting of a superior closed cell lightweight and resilient expanded polystyrene eps with advanced polymeric laminate facers. This can range from 0 to 100. Rigid foam insulation installation prepare roof deck. The bottom layer of a single ply membrane roofing system is the roof deck or substrate.

The thicker the better for both thermal and noise insulation. R tech is available with factory adhered metallic reflective facers white facers or a combination of the two. Why open cell oc spray foam is best for sound attenuation. It ties with rock wool batts for an stc of 50 in a laboratory test environment.

With a density of 4 lb ft it can be used in walls ceilings or floors. Acoustimac acoustic insulation eco cellulose comes in soft yet rigid 48 x24 x2 sheets. It has an stc rating between 44 and 68 depending on thickness and density. Provide separation of foam insulation from interior of the building with a 15 minute spaces such as interior corridors and service areas provide sound transmission class stc ratings of not be less than 50 45 if field tested when tested in.

For example a wall with an stc rating of 68 means that noise levels on one side of the wall are 68 decibels higher than on the other side of the wall. The higher the stc rating the more effective the barrier is at reducing the transmission of sound. However in real construction a batt would be cut to fit around utilities and boxes leaving sound transfer cracks. There s a reason polyiso rigid foam insulation is used in more than 70 of commercial roof construction as well as in many residential builds.