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Sound Reducing Window Curtains - 4db Laboratory Proven
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Flame Retardant
Bestseller
Laboratory Proven Sound Reducing Curtain - With Double Glazing Window
**** If colours are not able to be selected it means they are not in stock until 2022****
Our curtain as far as we can see against our competitor's (February 2020) product is the only product actually tested with a double glazed window. Our testing has been performed in February 2020 and was with a real-world set up and performed in a laboratory to record the results. The results show that the curtain reduces sound entering a space by 4 Decibels when combined with a brand new standard double glazed window.
When tested without the window in an open space it tested to 11 decibels. Obviously, when working with a window, the window is doing the majority of the acoustic reduction
Benefits of the Sound Proofing Curtain
Soundproof / Absorbtion
Our curtains are designed to block 4db over a double glazed window and absorb sound that is in a space. 0.95aw.
Blackout
Our Duo Lining is 3pass coated and will stop light entering a space or leaving a space including office lights, street lights and more
Thermal Regulation
Our Curtains are lined with a sealed 3 pass lining that stops heat loss and heat entry.
Beautiful High Quality Fabrics
We offer 1 Main Range, but we can use any fabric with our acoustic lining.
Our Full Guide on Acoustics
This video we have put together to provide our clients with an understanding of our acoustic profits so people can see which product will work for them and what is the best option.
Some of Our Recent Reviews from Trust Pilot
Really pleased with my new sound-proof…
Really pleased with my new sound-proof curtain. The colour and fabric are both great and it really does help reduce exterior noise...
Simon Hawkins
Direct Fabrics is a great company to deal with
Direct Fabrics were very helpful through all stages of our order, from ordering samples through measuring up and delivery. The curtain is perfect,
Natalie Westlood
Curtains are very well made
I ordered audible blackout curtains for bedroom, from beginning to the end of process great service... The curtains are well made and a lovely product. Materials are excellent quality. They definitely block out the street light, and stop some of the traffic noise....
Elinor Hoyle
33 hours ago
I ordered curtains for bedroom windows…
I ordered curtains for bedroom windows to help reduce noise from road traffic and they have made a noticeable difference. Also the curtains act as blackouts and so serve two purposes.Thank you.
Kathryn Bunce
Would I recommend this company? Early signs is a resounding YES!
I stumbled across Direct Fabrics while searching for sound reducing curtains, online.... They are of good quality, slightly heavier than I was expecting, and do indeed help to reduce external noise,
Paul
13 April
Very Good Service
Very good service. We ordered some acoustic curtains that seem to work very well.
Tracey Roberts
Functional curtains that work
I ordered some made-to-measure blackout acoustic curtains which were delivered quickly and to the exact size. The blackout function is excellent and the acoustic aspect certainly helps reduce traffic noise.
Peter Elliot
Would I recommend this company? Early signs is a resounding YES!
I found Direct Fabrics in a Google Search. I was looking for Acoustic Curtains with a matching Roman Blind. The curtains were to cover a whole wall to avoid the sound bounce we had experienced during Zoom and Teams Video calling. They were a perfect fit, .
Roberta Pannell
Testing our product in a Laboratory with a double glazed window.
Quite simply our product is laboratory proven and has the following features;
- Proven to reduce sound passing between 2 spaces. It is certified depending on the number of layers up to 4db with a double glazzed window and 12db as a room divider for ENISO 1040-1
- A decorative product, as well as a sound blocking product.
- Hangs beautifully and works with standard curtain tracks and poles.
- Room Divider means no other obstruction stopping sound passing between a space
- If there is a door it will not work as well or a wall as the object is doing the work already
Feature
Same Curtain just tested in different situations
Acoustic Absorption
Room Divider
Window Curtain
Reduce Echo
Yes
Yes
Yes
Block External Noise
No
Yes
Yes
Colours
28
28
28
Blackout
95% Dimout Unlined
100%
100%
Hangs as a Curtains
Yes
Yes
Yes
3 Heading Options - Pencil / Wave /
Yes
Yes
Yes
Reduce Road Noise
No
Yes *
Yes *
Flight Noise
No
Yes *
Yes *
Acoustic Absorber
0.95AW A Rated
0.95AW A Rated
0.95AW A Rated
Acoustic Insulator Sound Proof
7DB
11DB
11DB
Improve Acoustics in Studio
Yes
Yes
Yes
Tested With Window
No
No
Yes 4db reduction
Tested as Internal Room Divider
No
Yes 11/12db
No
Compatible with Normal Pole / or divack
Yes
Yes
Yes
The Lab Testing
Curtain installed on a curtain track. 20cm Above the window and curtains to the floor, 30cm Passed each side and a window in a gap in a breeze block wall and mounted our curtain in front of it.
The window tested had a result fo 29db and combining the window with our 2 layer curtain gave a result of 33db reduction.
Success: Our Curtain Is Proven to Work with a Standard Double Glazed Window -- Results may vary on all different applications and standard of window
Acoustic Curtains
The herringbone range of curtain fabrics are an acoustic range of curtains, this means that they are ideally suited to reduce the amount of echo and reverberation of sound around a space.
Using Different linings can give you some great sound blocking of 4db when used as with a standard double glazed window. The testing was performed using a brand new double glazed window with 2 panes of 4mm glass. This gave a result of 29db and then using our curtain mounted above the window by 20cm and past each side by 30cm and to the floor. We got a result of an increase of 4 decibels
10 Decibels is half of the audible sound.
The herringbone range has passed a certified acoustic report. This means it is ideally suited for sound absorption as it is graded A for EN ISO 354:2003. It has passed the classification A standard so it will absorb sound at a variety of frequencies. A sound absorbtion of 0.95aw
Our acoustic curtain lining when combined with our face fabric has been certifed for acoustic insulation of 4db when used with a window
We have an amazing article that tells you a lot about acoustics and soundproofing curtains and sound acoustic curtains. READ HERE
About the Face Fabric
The herringbone range of curtain fabrics are an acoustic range of curtains, this means that they are ideally suited to reduce the amount of echo and reverberation of sound around a space.
Using Different linings can give you some great sound blocking over 11db to 12db when used as a room divider.
- The face fabric is certified to BS5867 Part2C. -
- It can be washed at 70 degrees for thermal disinfection
- The fabric is ideal for flame retardant curtains and accessories. Our best selling flame retardant curtain fabric
- Acoustic Rating of Face Fabric - has been tested to EN ISO 354 --- GRADE A 0.95 reduction in the acoustic lab.
- 95% Dimout meaning it is nearly blackout even when unlined.
- EN ISO 717-1 for acoustic insulation to 5db.
Frequently Asked Question About Sound Proof Curtains
- This all depends on how your room is constructed and most importantly the windows that are in your room. If you have a draughty window made out of single glazing then our curtains will work well to reduce the sound entering and passing around the room. The curtains have been tested for sound insulation effectively sound blocking. The tests performed in the laboratory have shown the insulation 4db of insulation with a double glazed window. However, the sound blocking is totally dependent on the structure of the room and windows. We have picked a standard test of double glazing in a block structure room and we got the 4db result.
Customer Review - Triple Glazed windows in a modern London apartment. Our customer has said there was a 50% reduction in the sound.
Road Noise is generally low tones when on the roadside, so if on a ground floor level the sound is probably entering through the fabric of the building. This means your adjustments will need to be more structural. For higher frequencies, these curtains will work well to dull the sound.
Similar to road noise it depends on the construction of your room
We have had customers note - they have seen upto a 50% improvement when using double glazing and our curtains. They can now sleep through the the early morning flights. Modern buildings with quality double glazing units will only see a marginal impact from the sound entering the room. Where you will notice the improvement is the sound already bounces around the space. As you are adding an acoustic absorber being the face fabric to the space, it will reduce the reverberation of the sound passing around the space.
Read this carefully. There is no difference between the 2. We just like to explain the product for one use and another for a different use. The room divider curtain has been tested as a room divider so has a sound insulation of 11db varying on lining and the window curtain has been tested infront of a double glazed window so has a 4 db uplift above the double glazed window.
When working with loud echoes in spaces it can be incredibly frustrating to stop sound reverberating around the room. This is where an acoustic curtain come in. Depending on the fabric it will have a varying effect on the amount of absorption that It takes and effects the sound passing back around the room.
To see how good a fabric or product is at absorbing sound in a room then you need to complete the Sound absorption test EN ISO 354. This grades a product between A – E based on how absorbent a material is. When sound is projected into a room it will hit the surfaces and then it will either be transmitted through things like ceilings and walls or it will be reflected back into the room. So in a basic form, the test is how much sound is sent out will return.
Example Imagine. 100 units of sound are sent into a room, 95 units are transmitted out of the room and then 5 are recorded back into the space.
Thus the sound absorption coefficient is 0,95Sound insulation is the measurement of sound passing between 2 spaces when comparing its performance in an aperature that is open and then sealed with the test product. This is tested with ENISO 717 for acousitc insulation. This is measured in decibells and is measured to show the reduction of sound.
| Changes in STC Rating | Changes in Apparent Loudness |
| +/- 1db | Almost imperceptible |
| +/- 3db | Just perceptible |
| +/- 5db | Clearly noticeable |
| +/- 10db | Twice (or half) as loud |
| Sound Level DB | Source | Sensation |
| 130 | Jet Aircraft at 100ft | Physical Pain |
| 110 | Thunder / Artillery / Disco | Deafening |
| 90 | Loud Street / Loud Factory | Very Loud |
| 70 | Cocktail Party, Noisy Office, Average Street Noise | Loud |
| 50 | General Office, Noisy Home | Moderate |
| 30 | Private Office, Quiet Home, Empty Gym, | Faint |
| 10 | Russle Of Leaves, Whisper | Very Faint |
| 0 | Threshold of Audibility | Nil |
YES - This is an excellent use of our acoustic curtains. standard acoustic herringbone fabric with duo lining is well suited to reduce sound passing from space to space at about 11db - 13db in a laboratory environment, combine this with our vinyl will get you approximately 10db in real-world testing. Laboratory.
Compared to the laboratory test there may be a slight difference, but when setting up the test we mounted a curtain track across the wall above the window by 15cm and to each side by 15cm. The reason for this was to show the improvement
PLEASE READ ENTIRE DESCRIPTION OR CONTACT THE TEAM FOR A BESPOKE QUOTE - WE WANT TO SUPPLY THE BEST PRODUCT FOR YOUR NEEDS!.
We have an amazing article that tells you a lot about acoustics and soundproofing curtains and sound acoustic curtains. READ HERE
Choosing the best lining – absorption & sound blocking
1. Unlined - Ideal for echo reduction and as a decorative curtains
The curtain is certified to the ENISO 354 test as a sound absorber and has a “A” Rating.
The Herringbone face fabric has been tested to ENISO 10140-1 / EN ISO 717-1 for acoustic insulation to 5db.
2. Fleece Blackout Interlined Lining 400gms - Sound Absorption Lining with Insulation 11 Decibels
The acoustic fleece blackout has been tested as a curtain with the herringbone fabric to ENISO 10140-1 / EN ISO 717-1 for acoustic insulation to 11db.
3. Fleece Lining 2 Layers or Face, Lining, Face
12-decibel reduction in a lab environment when used as 3 layers
10 Decibels is half of the audible sound.
A Curtain That is Certified and Backed by Laboratory Testing 10 Decibells is half as lous
Sound Absorbing Result - Face Fabric
Sound Reduction Index in Decibells 2 Layers with Lining
Sound Reduction Index in Decibells 3 Layers with Lining
Test Results for Products
A Curtain That is Certified and Backed by Laboratory Testing
Sound Absorbing Result - Face Fabric
Double Glazed Window Sound Proofed
Double Glazed Window with Curtains - Sound Proofing Uplift 4db
Showcase Pictures of Acoustic Curtains
Where the curtains can be used
- Care home curtains
- School Curtains
- Theatre curtains
- Surround curtains
- Hotel Curtains
- Domestic Curtains
| Fabric Style | Plains |
|---|---|
| Washing / Cleaning Information Face Fabric | 71 Degress C, Iron Low Heat, Non Bleach |
| Flame Retardant Certified Rating | BS5867 Part 2B |
| Colour | Beige, Blue, Brown, Cream, Green, Grey, Natural, Orange, Pink-Purple, Purple, Red, Stone, White-Other, Yellow |
| Delivery | Currently 3-4 Weeks. Made to Order. Order Soon to Avoid Disappointment - Estimated END January Delivery Due to Christmas Closure - Contact for more info |
| Flame Retardant | Yes |
| Pattern Repeat Vertical (cm) | 1 |
| Composition | 100% Polyester |
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How to Measure For Curtains, Blinds and Tracks..
Pen and Paper
For recording your
measurements.
Helper
Someone to assist if your
windows are large .
Metal Tape Measure
As this will allow you to get a
rigid full length measurement.
Make sure your curtain tracks and poles are fitted in the position you want.
Choose the type of curtains that you would like and how you want to hang your curtains. See our heading styles guide
We recommend fitting your hardware first before measuring, this avoids any issues with not getting the perfect fit.
Measure your window using our main guide. Quick summary below. Remember wave, pinch, and designer headings require slightly different measurement
Measure in 3 places and take the shortest drop – Floors and ceilings can run out.
Double / Triple check your measurements
Choosing your Curtain Track Width
The width of the curtain track should extend past your window this allows for the curtains to stack back away from your window and allow light in.
Measure your recess and then add on 15cm on either side. For acoustics, we recommend further to fully cover and more the window. Tested to 30cm
Wave curtains, for every 100cm of track the curtains will stack circa *18cm
Eyelet curtains, they will stack back circa 10cm per *70cm of track width
Pencil Pleat will stack approx 25% of the track width. eg. 210cm track will stack 52.5%
* all dependent on thickness of fabric
Selecting your Curtain Drop
Where to Measure From for Different Type of Curtains
|
Type of Curtains |
Fitted On |
Where to Measure from - to desired length |
|
Pencil Pleat Curtains |
Curtain Track |
Top of the Track - If using a extra wide track or designer track like silent gliss metropole, then measure from the underside of the track. |
|
Pencil Pleat Curtains |
Curtain Pole |
Measure from small ring at the bottom of eye under the ring, this is where your curtain clips into. |
|
Eyelet Curtains |
Curtain Pole – Only |
Top of the pole *we add on the upstand to our curtains, |
|
Pinch Pleat Curtains |
Curtain Track |
The underside of the track |
|
Wave Curtains |
Curtain Track Designer Pole |
The underside of the track |
|
Acoustic Curtains |
See Heading Style of Choice above |
Same but makesure wider than normal ideally 30cm past either side and 30 above. Also to the floor. |
How to Measure for Blinds goinng Inside the Recess
- Measure the exact width of the recess in three places; at the top of the recess, in the centre of the recess and near the bottom - then take the smallest size.
- Measure the exact drop of the recess in three places on the left hand side of the recess, in the centre of the recess and on the right hand side of the recess - then take thesmallest size.
- We will take one cm off the finished width size you have given us, to allow for the blind to pull up and down easily.
- Double check your measurements
- Cord Safety - Mounting Height - We ask for the mounting height of your blinds to allow for the cord to be 150cm off the ground. If mounting at 210cm This is what you enter in the Fitting height box. We make a deduction to ensure the cord is 150cm from the floor. Thus the cord loop will be 60cm
How to Measure Outside of the Recess
- Measure the recess in 3 places on the width and also 3 places on the drop. Take the widest measurement.
- Measure the width of the actual recess plus an additional amount – Usually from 7cm-15cm whatever you think looks appropriate. This is for overlap.
- Measure the exact drop of the recess. The blind would be fitted above the recess, so check the space above and add an amount on to the drop – usually from 7-15cm
- These sizes you have taken will be the size of the finished blind.
- Double check your measurements
- Cord Safety - Mounting Height - We ask for the mounting height of your blinds to allow for the cord to be 150cm off the ground. If mounting at 210cm This is what you enter in the fitting height box. We make a deduction to ensure the cord is 150cm from the floor. Thus the cord loop will be 60cm
Cubicle Tracks you have to measure with right angles from wall to wall where you want the track to go
Draw your room on a piece of paper with a sky view
Now measure from the wall to wall for straight tracks,
L Shape Tracks Measure to a point on the floor and mark with a piece of tape. Then for the other sides measure from the other wall to that point.
Always check for obstructions and fitting issues you may need to work around