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Thermal & Acoustic Insulation Part 1: Sound level prior to treatment
In this blog series we would like to show you how we significantly reduced the noise produced by a vehicle. The perfect car for this showcase, noise wise, happened to be offered to us by Ramon from Hummer Offroad: a Hummer H1. Each part of this blog series is applicable in any type of vehicle, classic car, camper van or off road.
About the Hummer
The Hummer H1 is a ‘civil’ version of the Humvee, a vehicle used within the American army. Even though this car can hardly be called civil: its track width is way too wide for virtually all parking spaces, the brackets at the front and back bumper allow the car to hang on a helicopter, the car has only space for 4 passengers, and… it makes a terrible lot of noise. 95 dB(A) in case of a stripped interior to be exact! The standard version of the Hummer doesn’t include any sound insulation, which leaves room for a significant noise reduction. Moreover, the car is suitable for installing a lot of sound absorbing material, since it contains large surfaces of easily accessible sheet material. The square design makes installing the materials even more convenient. In short, the ideal car to showcase our products.
Measuring the sound level of the car
First of all, the car was delivered to us, entirely stripped of its interior. After that, the sound level of the car was measured using a calibrated sound level meter. We started out with noise levels of about 95 dB (with peaks of around 98 dB). After soundproofing the car, with the best acoustic products, we managed to reduce the noise level in the car to about 81,5 dB(a)! Read all parts of this series how you can soundproof your vehicle.
Links to all the parts of: How to soundproof your vehicle for a quiet ride
These are all the parts of the blog series on how to soundproof your vehicle for a quite ride.
Part 1: This page.
Part 2: How soundproof the floor and tunnel in a car.
Part 3: How to insulate the bonnet of a car.
Part 4: How to insulate the boot and wheel arches of car.
Part 5: How to soundproof car doors and improve car audio.
Part 6: How to soundproof wheel arches in a car.
Part 7 & 8: How to insulate the roof, dashboard and console in a car.
Part 9: The result of soundproofing a vehicle and sample request.
More guides about vehicle insulation
On our page with solutions regarding vehicle insulation you will find the most common problem areas. Additional tips pages about various types of vehicles you will find here:
Do you need personal advice?
Please feel free to contact us, we will be happy to answer your question as soon as possible.