After spending quite a lot of money on my soundproofing window project, some noises are still coming in my apartment through the gaps from the door.
So in this DIY article, I will install D-shape door seals on my door to block out -5 dB of the train noise.
My Door That Needs D-Seals
Decibel Reading Before & After Door Seal Installation
|Average Reading with soundproofing windows, but Before Any D-Seals on Door||38 dB||45 dB|
|After D-Seal Installation – Average Reading||35 dB||40 dB|
|Average Noise Reduction With D-Seals||-3 dB||-5 dB|
Conclusion: The seals work. For an average train noise reduction of -5dB, and costing around RM 5 per door, this is a DIY project that is easy to recommend and is 100% worth it.
How Much D-Seals do You Need for 1 Door?
1 roll of double D seals contains 3m. If you split the roll into 2 (like how I split it in my video), you’ll end up with 6m length, which is enough to cover 1 door with a little extra just in case you have shaky hands and need to remove and realign a new one.
Where to Get the D-Seals
I purchased mine on Shopee for less than RM5 per door (3m length for double Ds) .
You can purchase them below:
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