Dry screed thickness and can laid by DIY method

[ab12]

Hi All

Opinions please.

I need to get UFH in newly build kitchen extension. Area coverage is abpout 20 square metres.

Thinking of ready made dry screed laid to about 75mm thickness.

I've never laid screed previously. Will be getting some help but essentially thinking of going the DIY route.

Off course wnat to get evenly level floor.

Can you share any tips.

Has anyone done DIY dry screed floor? How will it take to complete the job in terms of hours?

Thanks

[Russell griffiths]

You start by setting the finished height in a number of areas 

then barrow in 20-30 barrow fulls and tip into these marked areas, walk up and down on it and push it into all the corners, keep walking on it, it needs to be fully compacted, not open a fluffy. 
make a flat pad 400mm square level with your finished height mark

go to another mark 2-3 m away and make another pad

Fill in between these pads and compact

use a straight edge, aluminium is best to scrape the in fill down to the top of your pads, fill in low spots and drag again until no air is under the straight edge. 
complete two strips opposite each other

then fill in the big area between these strips and again drag the straight edge over it filling in voids and compacting as you go. 
after you have completed a 1m wide strip the width of the room you can use a plastic float in a figure of 8 motion to even out the straight edge marks. 
don’t worry about loose product sitting on top, these will sweep of when dry. 
continue back for another metre. 
don’t have too many breaks keep the screed always moist on the last edge you don’t want cold joints. 
 

I hope your fit it will kill you if you have not done it before. 
if it’s ready mixed it will take you half a day.