I need to block the noise from the apartment downstairs. Usually voice and TV. What underlayment do you suggest?

We offer a wide range of underlayments that would work great for your application. Our most popular underlayment thickness is our 5mm. This underlayment will provide you with and IIC rating of 60 and and STC rating of 53. This will help to reduce the amount of noise coming into your apartment. For further information about this underlayment and others, please visit our Underlayments page.