Kingspan Multideck

weissfjord

Does anyone have any experience with Kingspan Multideck?

I am building a 2 storey extension with open plan type rooms with spans
approx 7M in length. Site access is a bit restrictive ( in town) for pre fab hollow core in that length. A builder suggested using kingspan multideck
to pour a concrete floor instead of the hollowcore planks.

Does anyone know if it is a good system?

Mellor

Its more industrial than commercial, can it do 7m spans? May need intermittant support, it which case hollowcore would be shorter too.

sydthebeat

have you considered structurally engineered timber joists???

some of these products can span over 7.0 m....
check out http://www.jji-joists.co.uk/index.php?id=products

There was also a product at planexpo last year which was a timber joist with metal interweaving flanges... i cant remember the product name but it won an award as far as i remember. That product should also suit.

Mellor

sydthebeat wrote: »

have you considered structurally engineered timber joists???

some of these products can span over 7.0 m....
check out http://www.jji-joists.co.uk/index.php?id=products

There was also a product at planexpo last year which was a timber joist with metal interweaving flanges... i cant remember the product name but it won an award as far as i remember. That product should also suit.

I wasn't at planexpo this year, but I remember correct you may be refering to eco-joist or posi-joist syd.
Timber flanges and ends with zig-zag trussed metal internally.

weissfjord

I'll have a look at the structurally engineered timber joists.

I like the idea of concrete to reduce noise beween upstairs and downstairs.

Johnniep

Kingspan do the MD decking range, and Tegral roll the Corus section (Comfloor) Very similar systems, but for a clear span of 7.0m they will need temporary propping! The "crinkly-tin" is a great system for tight sites where access is a problem. Just make sure it is designed properly. Contractors some times throw it down and have an "ah sure it will be grand" attitude!

weissfjord

I had'nt seen the comflor, I'll have a look at that.

I'll be getting prices on the build, but I kind of want to know
what I'm talking about in terms of whats fesible or not, so
as not to just go along with what I'm told (by builders/engineers) blindly.


Thks.

narommy

I know of somebody who used it and was very happy with it. The Kingspan product needs less steel reinforcement as the grooves/grips act provide some sort of reinforcement or other when bonded with concrete.

The Guy who used it was clued in in that before pouring the concrete he used dry wall screws (like you would use for steel frame partitions) to screw 2by1s to the underside of the deck

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> no need for shot fired nail afterwards. Good idea.

Also consider some of the ICF companys provide lightweight decking products but would need more re bars. They normally include a light steel strip to attach plaster board to

weissfjord

Thanks for info.

That would make fixing ceiling easier.