Bedding concrete panels on mastic

[BBE]

Dropping panels on a concrete floor, should I run a bead of mastic behind the front edge of the panel before dropping into place? should I seal the exterior edge as well or could this trap water in middle?

 

[Sandy]

Panel should be concreted in to the floor 2” deep water will leak in just laying them on top am afraid

 

[BBE]

Panel should be concreted in to the floor 2” deep water will leak in just laying them on top am afraid

It's a repair job I'm afraid, floors already in. Just trying to make best of a bad job really.

 

[Dyffryn]

Panel should be concreted in to the floor 2” deep water will leak in just laying them on top am afraid

No they shouldn't. They crack if you do that. They need to be able to flex.

 

[Hesston4860s]

No they shouldn't. They crack if you do that. They need to be able to flex.

Every panel I’ve ever seen in a grain store is concreted into the floor.

 

[Hesston4860s]

It's a repair job I'm afraid, floors already in. Just trying to make best of a bad job really.

Waste of time using mastic round them, I know of a shed (the only one I know off) where the panels aren’t concreted in the floor even tho he was told by me and several others to do so. He insisted that mastic would seal them it didn’t and it still leaks to this day and he used tubes and tubes of it inside and outside !.

 

[Mur Huwcun]

I would think you would get a better seal with a bed of sand and cement with some waterproofer in and spray the floor and panel with some SBR but it will,still seep through same as a block wall on a floor slab

 

[Pan mixer]

I have an idea that there is a roll of thick mastic-like stuff that you can put under panels, it was mentioned on here somewhere - iy must be a bit like that stuff that you use to sandwich in the join of metal gutters - about 15mm thick and 100 wide.

 

[Pan mixer]

tok strip - Google Search

www.google.co.uk

 

[Doing it for the kids]

Every panel I’ve ever seen in a grain store is concreted into the floor.

intereating. I’ve been told to Concrere them in as they are designed to flex.

do you suggest concreting both sides then?

 

[Hesston4860s]

intereating. I’ve been told to Concrere them in as they are designed to flex.

do you suggest concreting both sides then?

I’m concreting mine in both sides, 50mm above the bottom inside 25mm outside to stop capillary action with any rain water.
All the ones I’ve seen are concreted both sides

 

[Renaultman]

All of mine are concreted in, both sides.

 

[Grouse]

And mine - no issue at all

 

[Robert K]

And mine, also it saves the bottom edge from being chipped when loading out the shed