Motorcycle Storage in damp garage

Motorcycle Storage in damp garage

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Rawhide

Original Poster:

971 posts

220 months

Monday 30th September
quotequote all
Hi All. I've a large double garage in a Cotswold location which has a Cotswold slate roof. I also live in a conservation area so changing this roof is not really feasible nor cost effective.

It does keep the water out most of the time, but when we have heavy rain there are some patches in the inner roof membrane which are holed and water drops in. I also believe the membrane becomes saturated holding moisture for a while until the sun bakes the roof dry.

On the coldest wettest winter days when I go in the garage there is condensation on many of the metal surfaces, like tools, racking, concrete floor even etc.

The garage is decently ventilated due to the large barn doors which have large gaps around to allow air around the door but it does take a while to dry out.

I've been storing a KTM EXC in there neglected for about 10 years and there was some corrosion on the wheel spokes of the wheels. I've also got a couple of Honda XR bikes, one of which has been recently fully restored.

I want to keep the Honda bikes from deteriorating. The KTM is now sold.

I want to to be riding the bikes periodically through the winter but I'm also aware this might well not happen due to life getting in the way. My question is what would be the best way to store the bikes? I'm debating a cover. I've also drowned the bikes in 'Maintenance spray' from Eurocarparts which smells like it's PTFE and silicon spray. I don't love WD40 for the smell when it bakes on.

Fixing the garage is just not a realistic option though I know it's a good idea.

Many thanks in advance.

Edited by Rawhide on Monday 30th September 15:51

sheldimus

286 posts

146 months

Monday 30th September
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Depends on how much you're willing to spend.
Sounds like you've already gone with some weather proofing spray. Can't recommend ACF50 enough, drown the bike in it and it should keep the worst off the bike.

A more pricey solution would be a Carcoon or similar.
Essentially a self contained plastic bubble that you can roll the bike into and inflate. Keeps the moisture and any other crap out and you can more closely control moisture levels.

Stevemr

634 posts

163 months

Monday 30th September
quotequote all
Assuming you have power and can place the bike where it will not actually be dripped on.
Cover with an indoor cover.
Obtain a 100 watt greenhouse heater, the short metal tubular type, mount this on a piece of ply on some 2x2 to keep it off the ground. Cover the ply in tin foil to reflect heat up. Place heater under bike.
This will keep all condensation off and is far cheaper to run than anything else and means it’s very easy to still use the bike.

Rawhide

Original Poster:

971 posts

220 months

Monday 30th September
quotequote all




Thanks for the ideas so far. To give an idea see the pics.

I don't want to use Carcoon sort of approach due to loss of space and the bike are not that special. It would also stop me just taking one out from time to time.

It's mostly the cover I'm debating. I was worried it might trap moisture in the cover rather than allow evaporation.

I will look info ACF50 spray.

Stevemr

634 posts

163 months

Monday 30th September
quotequote all
That’s why I said to use an indoor cover, as it won’t trap moisture.
I used this method for years to cover my Z1 when it was in a concrete sectional garage. It had a lot of polished alloy, which never went off when stored as I said.
Gratuitous pic

Rawhide

Original Poster:

971 posts

220 months

Monday 30th September
quotequote all
Thanks - Im liking the indoor cover and greenhouse heater concept. smile

RizzoTheRat

25,998 posts

199 months

Monday 30th September
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Someone I know who had a similar issue built a plastic polytunnel inside his lockup, and then ran a dehumidifier inside that.

Stevemr

634 posts

163 months

Monday 30th September
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It’s simple and works, forgot to mention the one I bought had a thermostat on it, so I think I set it to come on when the temperature went below a certain level. But to be honest they use so little power anyway you could probably just leave it on.

Adamantia

9 posts

82 months

Tuesday 1st October
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Is it just the roof and loose doors that mean it gets damp, or does it come through the walls or floor too?

As above, make it less draughty and line the roof (and walls?) with plastic sheeting and then run a dehumidifier. Get a desiccant based one as they work the same even at low temps, and make sure it had a humidistat so you can set and forget (assuming you can run a drain tube somewhere).

I have a draughty garage and even with no leaks , the changes in weather humidity and temp means I get condensation and rust.

fred bloggs

1,354 posts

207 months

Wednesday 2nd October
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As you have power, use a dehumidifier as well as the heater. Put them on a timer socket and just run them midnight till 5 am.

SteelerSE

1,938 posts

163 months

Wednesday 2nd October
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What a luxury to have all that space! I have nothing else to add - just jealous smile

moanthebairns

18,184 posts

205 months

Wednesday 2nd October
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Adamantia said:
Is it just the roof and loose doors that mean it gets damp, or does it come through the walls or floor too?

As above, make it less draughty and line the roof (and walls?) with plastic sheeting and then run a dehumidifier. Get a desiccant based one as they work the same even at low temps, and make sure it had a humidistat so you can set and forget (assuming you can run a drain tube somewhere).

I have a draughty garage and even with no leaks , the changes in weather humidity and temp means I get condensation and rust.
This is interesting, I've been using a dehumidifier in the garage but its one that works with a condenser, I didn't know these existed and it might explain why I'm always disappointed by the levels of water collected in it after days of use compared to when I used it in my old flat. I might have to buy one of these for the garage.

I'd suggest a carpet for the flooring or some matts. I got a cheap gel backed carpet it was only a few hundred quid or so fitted (looks like an office carpet you wouldn't want it in your house) but certainly took the chill of the room. 4 years later and it still looks fine, could do with a shampoo in places but incredibly hard wearing. Also, when there is a sudden shift in temperatures, or basically when it might be warm and dry enough to hang my washing out, I tend to let my garage air for a bit by just opening the doors and such.

In regards to heating, how big or how many tubular heaters would you require? I cannot imagine it being cheap trying to heat this space even to take the chill of it. I've done a few projects at work with cabinets or kiosks with instrumentation inside them that are prone to temp shifts, so I've supplied domestic heating inside with this in mind but I've never thought about how much it'd cost to actually run during the winter.


Edited by moanthebairns on Wednesday 2nd October 12:25

Stevemr

634 posts

163 months

Wednesday 2nd October
quotequote all
You’re not trying to hear the space. You just want one heater under each bike with a cover over the bike.

Rawhide

Original Poster:

971 posts

220 months

Wednesday 2nd October
quotequote all
Hi All, I've bought a cheap indoor cover (from Temu) and I'm looking for a cheap greenhouse heater as per the suggestions. I don't want a dehumidifier as the area is pretty large and with the amount of holes in the roof, and around the doors getting it air tight is just not realistic. I would just be dehumidifying the world!

When I originally installed the doors I installed a Chinese diesel air heater but it had to run for ages to increase the temp by a few degrees due to the pent roof and air gaps.

I've since embraced the air gaps and might even try to ventilate the far end better to allow more through draft. If the roof was intact I might try to seal the room better but it's not so I take the opposite approach.

At the end of the day it's a first world issue. I don't have a car to store in there for now, but do have a nice enough older bike which would benefit from some local warmth to prevent condensation.

Edited by Rawhide on Wednesday 2nd October 15:52

OutInTheShed

9,349 posts

33 months

Wednesday 2nd October
quotequote all
I think your best bet is to keep the bikes clean with wax and oil where possible on bare metal, then increase ventilation.

If you could add some sort of membrane under the roof slates that would be ideal.
But quite likely a lot of moisture come up through the floor anyway?

Bob_Defly

4,056 posts

238 months

Wednesday 2nd October
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Surely putting a cheap plastic cover on it and warming the place up is just going to exacerbate the problem?

2ndclasscitizen

365 posts

124 months

Wednesday 2nd October
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Rawhide said:


Thanks for the ideas so far. To give an idea see the pics.
Are you allowed to change the inside? Sheeting in the and insulating the ceiling would probably help a lot.

Rawhide

Original Poster:

971 posts

220 months

Thursday 3rd October
quotequote all
2ndclasscitizen said:
Rawhide said:


Thanks for the ideas so far. To give an idea see the pics.
Are you allowed to change the inside? Sheeting in the and insulating the ceiling would probably help a lot.
I can do whatever I want in the inside. But without repairing the holes in the roofing membrane any insulation is just going to get wet, or simply channel the water down the insulation and then down onto the internal walls onto the floor. Of course the holes can be repaired, but the section where the building adjoins to a neighbours wall is also damp and slightly rotting the wood. Not so much that it's a structural issue but the roof would pretty much have to be stripped before the membrane is replaced. I was also told that the roofing slate is worth a fortune, which means it often gets stolen whilst off the roof, and you can expect a 40% shrinkage removing the slate and re-installing it due to breakages. Hence why I've decided to do nothing, and just put up with minor leaks.

MKM87

87 posts

83 months

Thursday 3rd October
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Seems like a good but not ideal place for the bikes! But you're not in the worst place ever!

ACF50 is a good solution however, can I make a suggestion that has worked for me and a few others.

Avoid motorcycle covers, I have seen some bad cases where these really trap dampness and exacerbate the corrosion issue. Wiring looms suffer really badly too. ACF is a bit of a mess and is really not permanent.

A really really high level detail (if done correctly) will be far more long lasting and appropriate than a quick WD40 and ACF50 application.

An extensive deep clean and dry off before coating with a Ceramic (preferred) or a high quality wax would be (from experience) best for this. A really experienced detailer will disconnect any electrical connections and apply a silicone or similar sealant too. Coat the spokes, frame, wheels, tank and mudgaurds getting as deep into the intricate parts as possible. Added bonus of enhancing the look too.

A couple of my bikes sit in our work unit in the damp and are free of corrosion thanks to spending some proper time detailing them before storage.

Hopefully another AOA for you.

MattOz

3,939 posts

271 months

Thursday 3rd October
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My garage can get damp in the winter. Vented tiles in the roof didn’t help with the moisture, so I bought a de-humidifier last year. It collects 3 litres a day in the winter. I just empty it daily. There is an option to put a pipe out the back of it for greater water removal.

https://www.amazon.co.uk/dp/B07D8SZJGM?ref=ppx_yo2...

The bikes remained dry and where the metal parts had previously shown signs of moisture, there was none. XCP rust blocker is also excellent if required.