Question 1

What is '1lb per square foot' mean?

Accepted Answer

It means every square foot of this material weighs 1 pound. Heavier = denser = better at stopping sound transmission through walls, ceilings, and floors. this blocks noise from passing through the structure entirely.

Question 2

Can I use this for a ceiling, or only walls?

Accepted Answer

Yes, it works on ceilings. Nail it to joists before drywall installation. It is especially effective in basement ceilings to reduce impact noise and airborne sound from the floor above.

Question 3

What STC rating does this product have, and is that good?

Accepted Answer

This MLV has a tested STC (Sound Transmission Class) rating of 27 when hung on its own, Higher STC = more blocking.

Question 4

How do I install it? Do I need special tools?

Accepted Answer

No special tools needed. Cut to size with razor or a utility knife. Attach to studs, joists, or existing drywall using staples, nails, or construction adhesive. the seams should be closely together and be sealed with MLV tape.

Question 5

Will this smell? I am putting it in a bedroom.

Accepted Answer

No. This is made from 100% virgin vinyl with no regrind or recycled filler. There is no off-gassing or chemical odor once installed. Recycled MLV from other brands can have a rubber or chemical smell; Safe for bedrooms, nurseries, and living spaces.

Question 6

This roll covers 100 sq ft. How do I figure out how much I need?

Accepted Answer

Measure total square footage of the surfaces you want to cover L x H for walls, L x W for floor or ceiling. Add 10% for overlaps and cuts. (ex. 10 x 10 room's four walls at 8 ft ceiling height, is about 320 sq ft, you would need roughly 3 to 4 rolls)

Question 7

Can I use this to wrap pipes or HVAC ducts?

Accepted Answer

Yes. The material is flexible enough to wrap around round pipes and rectangular duct work. Cut strips to the width you need and wrap tightly, overlapping each pass by at least an inch. Secure with MLV tape or metal strapping.

Question 8

Can I use it on an outdoor fence?

Accepted Answer

Yes. Attach it to a fence frame using screws and washers or staples. MLV is weatherproof and UV-stable, so it holds up outdoors. It will not replace a purpose-built sound wall but provides meaningful reduction for residential use.

Question 9

Q: What is the difference between 1lb and 2lb MLV? Which one should I buy?

Accepted Answer

1lb per sf is right for most home and studio applications: apartment walls, ceilings, car interiors, pipes, and home theaters. 2lb per sf is for situations where maximum mass is needed, such as commercial walls, or industrial machinery enclosures.

Question 10

Is this made in the USA?

Accepted Answer

Yes. This product is manufactured in the United States by TrademarkSoundproofing. Domestic manufacturing allows tighter quality control over material density and purity, which is why we can make sure consistent throughout the entire roll

ASIN	B007N3356S
Best Sellers Rank	#1,375 in Musical Instruments ( See Top 100 in Musical Instruments ) #49 in Recording Studio Acoustical Treatments
Brand Name	Trademark Soundproofing
Coverage	100 square feet
Customer Reviews	4.4 4.4 out of 5 stars (339)
Included Components	MASS LOADED VINYL
Item Dimensions L x W	48"L x 48"W
Item Thickness	3.18 Millimeters
Item Weight	100 Pounds
Manufacturer	Trademark Soundproofing
Manufacturer Part Number	4334435662
Material Type	Vinyl
Model Number	4334435662
UPC	608729732228
Unit Count	25 Count

Trademark Soundproofing Mass Loaded Vinyl 1lb - MLV Soundproofing for Wall Sound Barrier - Sound Insulation - Made in USA - 4' x 25' Covers 100 sf - Made in USA

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