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Customer Questions & Answers for
Fibreboard Underlay

Ideal for bridging gaps and joins, and levelling small indentations or protrusions (up to 3mm). Pack of 20 covers 10.8m2. Improves walking comfort and reduces associated noise. Easily cut to size and simple to lay. Great sound deadening qualities. For use with laminate and real wood flooring. Can be used on timber and concrete sub floors. Provides a firm foundation for your new floor. Use underneath laminate flooring to cushion the floor without any give.
Customer Questions & Answers:
25 Questions
 | 
24 Answers
Overall Rating:
4.396 out of 5
4.4
out of
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(101 Reviews)85
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Questions & Answers for Fibreboard Underlay

Question
Fibreboard Underlay - can this used under vinyl flooring
I am fitting vinyl flooring in a cold room with a suspended wooden floor with squeaky/slightly uneven floor boards. Can this product be used either directly under vinyl flooring or underneath hardboard with the vinyl floor put over the hardboard?
Asked 4 years, 3 months ago
By
diynovice2010
on Fibreboard Underlay
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2 Answers
Answers
Answer 1
Probably need to lay a plastic membrane on the floorboards first to avoid dampness from under the floor getting into the fibre. My impression is that an uneveness of 2mm or more between adjacent boards will not be absorbed well by this material.
Answered 4 years, 1 month ago
By
PreferDiy
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Answer 2
I have personally done this but I'm not sure if its recommended. I laid the fibreboard then laid 4mm plyboard over the top fixed with a spot nailer at 20cm square intervals. I cant see why it would be a problem just try to make sure the nails don't pull the ply into the fibre board to much. This will give you a nice even, slightly insulated base for your vinyl.
Answered 4 years, 3 months ago
By
Anonymous
 - North Wales
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Question
CAN I LAY FELT BACKED CARPET ON THIS BOARD
Asked 3 years, 7 months ago
By
SMARTY
 - KETTERING
on Fibreboard Underlay
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2 Answers
Answers
Answer 1
i did and it worked just fine, dont listen to people who say you cant, i did it because i wanted to drown out the noise from my downstairs neighbour and it worked.
Answered 3 years, 4 months ago
By
sawdustforbrains
 - north lanarkshire
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Answer 2
probably not, as the joints in the underlay may show through the carpet
Answered 3 years, 6 months ago
By
Denry
 - Bingley
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Question
Can you use this under Vinyl flooring instead of hardboard
Asked 4 years, 10 months ago
By
mazzakins
on Fibreboard Underlay
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1 Answer
Answers
Answer 1
No as the fibreboard’s can not be fixed down.
We suggest fixing hardboard down (For example Plywood) for the vinyl floor tiles to adhere to.
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Answered 4 years, 10 months ago
By
WickesTeam
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Question
Is a separate moisture barrier needed with this product?
The high performance underlay (http://www.wickes.co.uk/High-Performance-Underlay/invt/191372) has a moisture barrier included. Does this product require a separate moisture barrier to be purchased?
Asked 4 years, 10 months ago
By
Anonymous
on Fibreboard Underlay
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1 Answer
Answers
Answer 1
When laying this product on a ground floor you should also use a vapour barrier or damp proof membrane beneath this underlay.
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Answered 4 years, 9 months ago
By
WickesTeam
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Question
can these be used under carpet underlay as an additional sound measure
Asked 4 years, 9 months ago
By
stevek
on Fibreboard Underlay
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1 Answer
Answers
Answer 1
We advise that our Fibre Boards can not be used under carpet.
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Answered 4 years, 9 months ago
By
WickesTeam
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Question
Is this underlay suitable for a bathroom please?
Asked 4 years, 8 months ago
By
Moose68
on Fibreboard Underlay
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1 Answer
Answers
Answer 1
We can recommend that you are able to use this Fibreboard Underlay in a Bathroom; however we would suggest reading our Good Ideas Leaflet 53 for installation instructions.

http://www.wickes.co.uk/content/ebiz/wickes/resources/images/gil/53.pdf
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Answered 4 years, 7 months ago
By
WickesTeam
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Question
Is it necessary to tape over the joins of this fibreboard and if so with what?
Asked 4 years, 7 months ago
By
DeeJayC
 - Southend-on-Sea
on Fibreboard Underlay
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1 Answer
Answers
Answer 1
yes I used parcel tape but it doesnt say until you read back of info sheet. It slides around if not, we did the four corners
Answered 4 years, 7 months ago
By
bernib
 - lincs
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Question
can i lay double layers as to reduce most noise, don't want the naighbour downstairs getting sleepless nights.
is this a good idea or should i use other underlay and then the fibre one on top? what tape sould i use (duck tape)?
Asked 4 years, 6 months ago
By
unsure
on Fibreboard Underlay
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1 Answer
Answers
Answer 1
We would suggest against 'doubling up' on this insulation. This would make the sub floor far too springy.
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Answered 4 years, 6 months ago
By
WickesTeam
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Question
How thick are these?
Asked 4 years, 6 months ago
By
Anonymous
on Fibreboard Underlay
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1 Answer
Answers
Answer 1
The fibreboard thickness is approximately 5-6mm
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Answered 4 years, 5 months ago
By
WickesTeam
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Question
What is the R value of them?
Asked 4 years, 5 months ago
By
essi
on Fibreboard Underlay
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1 Answer
Answers
Answer 1
The thermal value for our Fibreboard Underlay is 0.07m2/KW
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Answered 4 years, 5 months ago
By
WickesTeam
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