Stopping water penetration into sectional garage from base

[Broadback]

What is the best way and product, if indeed it is practical, to stop
water ingress from between a garage concrete base and a sectional
garage. My daughter's garage is almost a swimming pool, yet items in the
garage show no signs of wet, nor do the inside of the walls and roof, so
I conclude that the water is entering at the base.
--
Remember the early bird may catch the worm but the second mouse gets the
cheese.

[David WE Roberts]

"Broadback" <messag...@wet-towill.co.uk> wrote in message
news:kbujqn$3km$1...@dont-email.me...

Having just had to deal with something similar in my shed, the first thing
is to walk all round the garage inspecting the outside.

Is there a space below the outside of the base all the way round so water
drains away into the ground and does not collect at or above floor level?
Possibly worth digging a channel all round and filling it with pea shingle
if there is any doubt.

Does the base stick out anywhere beyond the walls?
Water can gather there then flow under the walls.

Is there any pointing or other seal between the bottom of the walls and the
base?
This would help shed water running down the outside of the walls and keep it
away from the join between the walls and the base.

Are there gaps between the sections which will let driven rain enter then
drain down to floor level?

Can water get into the top above the walls then drain down inside the wall
sections?

In theory if you address all these issues then you stand a good chance of
reducing or stopping water ingress.

Oh, and guttering will help stop water from the roof running down the walls
or dropping near the base which can only help.

Cheers

Dave R
--
No plan survives contact with the enemy.
[Not even bunny]

Helmuth von Moltke the Elder

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(")_(")

[Andy Dingley]

On Tuesday, January 1, 2013 12:12:11 PM UTC, Broadback wrote:
> What is the best way and product, if indeed it is practical, to stop
> water ingress from between a garage concrete base and a sectional
> garage.

From ancient tribal memory (our family built dozens of these things in the '60s - we all went a bit Practical Householder over them), it's about putting some magic sealer mastic strip in _as_you_assemble_ the panels.

Otherwise I'd look at avoiding any standing water outside the garage (improve drip shedding from the roof, maybe gutter it, maybe a french drain around it, maybe use a big manglegrinder and chisel to chamfer the base edges). Then I'd seal the outside of the panel joints, using a polysulphide mastic rather than a silicone, as these are stickier and more flexible.

[Roger Mills]

On 01/01/2013 12:12, Broadback wrote:
> What is the best way and product, if indeed it is practical, to stop
> water ingress from between a garage concrete base and a sectional
> garage. My daughter's garage is almost a swimming pool, yet items in the
> garage show no signs of wet, nor do the inside of the walls and roof, so
> I conclude that the water is entering at the base.

On a related subject, I have a garage in the middle of a row of
sectional garages at my holiday flat. The roofs are made of corrugated
iron, and slope front to back - with the corrugations also running front
to back. Over the door, the front of the roof sits on a concrete beam -
so there are a series of sine-shaped gaps where water can get in. When
rain is driving from a certain direction, it goes through the gaps and
runs along the underside of the roof, dripping off in various places -
so I have to keep a large plastic sheet over my tools.

Anyone got any ideas for the best way to fill these gaps. A neighbour
has injected some yellow/orange expanding foam into his - and it looks
pretty hideous, so I'd like something a bit more tasteful!
--
Cheers,
Roger
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[andrew]

Something like this?
http://www.screwfix.com/p/a/31599

Different sizes are available, so one might fit.

A

[Bert Coules]

Roger Mills wrote:

> Anyone got any ideas for the best way to fill these gaps.

One of the manufacturers, Compton I think, makes a moulded dense-foam strip
which fits the gap exactly: I was looking at a sample recently at a garden
centre. I don't know, though, if the profile is exactly the same for all
makes of roof sheeting.

Bert

[George]

"Andy Dingley" <din...@codesmiths.com> wrote in message
news:ea3cae12-c617-4dd1...@googlegroups.com...

I assume the OP means at the base of the panel to the concrete base?

I have had this same problem, I found the best cure is to clear any internal
sealant at the base of the panels and inject all weather sealant, then
diluted PVA to seal the concrete and apply a sand and cement fillet at 45'
to the base and panel. I have a slight problem with the fillet wicking
moisture up at the moment in bad weather. I guess a small amount of PVA in
the fillet mix may improve this. I intend to add gutters shortly.

My base is above ground level so any surrounding land run off does not reach
the panels.

Hope this helps.

[harry]

When it was erected, it should have had a cement fillet all the way
round the walls/floor angle inside. This stops water on the base
outside (where it projects) from running under the walls/panels.
So unless there's inches of water puddling outside there must be some
defect with this (if it exists)

[harry]

You can buy foam that fits the exact section. But it's a wrongly
installed roof .
There should be a bit of angle about 100mm x 100mm should run along
this top edge (on top) to stop this from happening.

Blobs of silicon in the valleys of the corrugated stuff prevent water
being blown "uphill" beneath the angle.

[harry]

Compton no longer exists, they were taken over.

[Tim Watts]

Foam and paint the foam after trimming, so it's roughtly the colour of the
surrounding metal.
--
Tim Watts Personal Blog: http://www.dionic.net/tim/

"A fanatic is one who can't change his mind and won't change the subject."

[Roger Mills]

Something *like* that, perhaps - but that particular one is for perspex
roofs rather than corrugated iron (if that matters) and - more
importantly - it looks as if it has to be fitted at roof construction
time rather than being retro-fitted.

[Roger Mills]

Interesting. Did it look as if it could be retro-fitted, or was it only
suitable for fitting when the roof was being built?

[Bert Coules]

Roger Mills wrote:

> Interesting. Did it look as if it could be retro-fitted, or was it only
> suitable for fitting when the roof was being built?

My impression was that it could simply be squeeze-fitted into an existing
garage. It came in short lengths: about two feet, if I'm remembering
correctly.

Bert

[Roger Mills]

I suppose it depends on the interval between fixing bolts. If there are
several corrugations between bolts, you might just be able to ease the
roof up a bit to squeeze the foam in.

[Broadback]

On 01/01/2013 17:40, Chris Hogg wrote:

> +1
>
> We had a similar problem with a sectional garage many years ago. The
> solution was a cement fillet around the bottom of the wall
> _on_the_inside_. If you put it around the outside, it will trap water
> that may run down the channels in the uprights and bypass the outside
> fillet, and trickle in and across the floor, unable to escape because
> said fillet is outside and holding it in.
>
Thanks for the replies. I visited my daughters today and inspected the
garage. There is a cement fillet all round the base on the inside,
however there is now a gap between the fillet the base and indeed the
walls. What is my best cure here? Remove and replace the fillet or use a
sealant around the gaps, if so what sealant will give the best results?

[geoff]

In message <kbujqn$3km$1...@dont-email.me>, Broadback
<messag...@wet-towill.co.uk> writes

>What is the best way and product, if indeed it is practical, to stop
>water ingress from between a garage concrete base and a sectional
>garage. My daughter's garage is almost a swimming pool, yet items in
>the garage show no signs of wet, nor do the inside of the walls and
>roof, so I conclude that the water is entering at the base.

I spent a year erecting sectional garages. We always used to put a
(2"-3" ) mortar fillet around between the base and slab.

You didn't mention the make, but Compton garages would have overlaps
between the slabs, Banbury would have a strip of mastic


--
geoff

[geoff]

In message
<74f1e470-9b36-4eba...@b16g2000vbh.googlegroups.com>,
harry <harry...@btinternet.com> writes

'Kinell

Harry talks sense for once


--
geoff

[geoff]

In message <kc42me$h9e$1...@dont-email.me>, Broadback
<messag...@wet-towill.co.uk> writes

>>
>Thanks for the replies. I visited my daughters today and inspected the
>garage. There is a cement fillet all round the base on the inside,
>however there is now a gap between the fillet the base and indeed the
>walls. What is my best cure here? Remove and replace the fillet or use
>a sealant around the gaps, if so what sealant will give the best results?
>

Only one solution - Angle grinder

--
geoff