Maxxfan fitting

[kelv]

Hi all I have just purchased a Maxxfan fitting it myself and I am not sure which adhesive to use can someone who has fitted one of these fans recommend an adhesive
thanks

 

[donkey]

I assume it is held on by some sort of mechanical fixings, such as screws. If so, you do not want an adhesive. You need a non-setting mastic. There are those in cartridges and also as a tape on a role.
A Goggle search will show you the options.

Geoff

 

[monzer]

Puraflex 40 is pretty good stuff.

 

[gus-lopez]

I used sikaflex 291 but also screwed it down

 

[Just smiffy]

Mastic tape…. Shop around and you’ll get it cheaper.

White Mastic Sealant Butyl Strip Tape 32 x 4 mm x 5 metres

Ideal for sealing external awning rails. Good for widow surrounds, roof lights. Also external lockers and mouldings. 32 mm wide x 4 mm deep x 5 metres. Colour is white.

www.thecaravansupermarket.com

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[CazPaul]

Why can you fit rooflights with just non setting sealant but when you fit one of these fans you have put a load of screws in too.

 

[gus-lopez]

Why can you fit rooflights with just non setting sealant but when you fit one of these fans you have put a load of screws in too.

You don't have to put screws in

 

[kelv]

Thanks for the advice been looking at using sikaflex 522 and screws

 

[kelv]

You don't have to put screws in

I do not like the idea of putting screws in but it seems most people do from the reviews I have read and the fitting instructions

 

[CazPaul]

I do not like the idea of putting screws in but it seems most people do from the reviews I have read and the fitting instructions

Surely you wouldn’t need screws too if using good adhesive

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[kelv]

Surely you wouldn’t need screws too if using good adhesive

I am not sure if I need screws or not
Just want to make sure it stays on the roof

 

[G7UXG]

I used Dekaseal 8936 to fit mine, which is a non setting mastic, so you need screws as well, which I also used. Just make sure the screws are inserted through the sealant so that the drilled hole is sealed. I fitted it over six months ago and it’s been through some horrendous weather in the meantime and hasn’t leaked.

If you use adhesive rather than sealant and screws it may be a real pain to remove if you had to for any reason.

 

[kelv]

I used Dekaseal 8936 to fit mine, which is a non setting mastic, so you need screws as well, which I also used. Just make sure the screws are inserted through the sealant so that the drilled hole is sealed. I fitted it over six months ago and it’s been through some horrendous weather in the meantime and hasn’t leaked.

If you use adhesive rather than sealant and screws it may be a real pain to remove if you had to for any reason.

Thanks very informative contacted roadpro I purchased fan from them and they also said dekaseal but are out of stock
I will try internet was just hoping someone could give me an alternative

 

[G7UXG]

I also helped a friend fit one to his van a few weeks ago in exactly the same way. No problems with his so far either. As well as passing the screws through the sealant, also made sure the screw heads were sealed against the Maxxfan’s plastic frame.

Good luck with the fit

 

[G7UXG]

The one I took off my motorhome was the original one fitted by Carthago. It was fitted using non setting mastic and didn’t need screws on the outside because it was clamped down from the inside by clips, much like a kitchen sink in a worktop. Maxxfan would be better if the frame could be clamped in rather than screwed.

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[kelv]

I also helped a friend fit one to his van a few weeks ago in exactly the same way. No problems with his so far either. As well as passing the screws through the sealant, also made sure the screw heads were sealed against the Maxxfan’s plastic frame.

Good luck with the fit

Thanks I can not get any dekaseal in white
Anywhere on internet I think everyone is out of stock

 

[kelv]

The one I took off my motorhome was the original one fitted by Carthago. It was fitted using non setting mastic and didn’t need screws on the outside because it was clamped down from the inside by clips, much like a kitchen sink in a worktop. Maxxfan would be better if the frame could be clamped in rather than screwed

The one I took off my motorhome was the original one fitted by Carthago. It was fitted using non setting mastic and didn’t need screws on the outside because it was clamped down from the inside by clips, much like a kitchen sink in a worktop. Maxxfan would be better if the frame could be clamped in rather than screwed.

totally agree

 

[CazPaul]

I also helped a friend fit one to his van a few weeks ago in exactly the same way. No problems with his so far either. As well as passing the screws through the sealant, also made sure the screw heads were sealed against the Maxxfan’s plastic frame.

Good luck with the fit

If I was fitting one it would be non setting sealant and no screws or not fit it, why wouldn’t that work?
I’ve put large rooflights in with just non setting sealant, probably a lot heavier than the maxxfan.

 

[Landy Andy]

Other roof lights clamp the roof structure. The Maxxfan doesn’t.

 

[G7UXG]

If I was fitting one it would be non setting sealant and no screws or not fit it, why wouldn’t that work?
I’ve put large rooflights in with just non setting sealant, probably a lot heavier than the maxxfan.

I did consider it but didn’t want to risk it and so went for the safer option. Wasn’t sure the Dekaseal alone would hold it in.

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[kelv]

I did consider it but didn’t want to risk it and so went for the safer option. Wasn’t sure the Dekaseal alone would hold it in.

Just out of interest did you manage to get white dekaseal

 

[G7UXG]

Just out of interest did you manage to get white dekaseal

No, I used black because that’s what was around the original roof light, and all of the others.

 

[kelv]

All fitted easier than I thought has anybody managed to adapted the original blind to fit.

 

[CazPaul]

All fitted easier than I thought has anybody managed to adapted the original blind to fit.

Nice one, did you use screws as well?

 

[kelv]

Nice one, did you use screws as well?

Yes used screws as well

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[kelv]

A fe pics of install

 

[kelv]

Adapted original blind a few pics for anyone wanting to do the same

 

[clanjones]

This is an alternative method without using screws.

DIY: Installing an extractor fan

Caravan finds it's easy to install a ceiling mounted extractor fan without drilling any holes!

www.outandaboutlive.co.uk

 

[wfdTamar]

Couldn't quite work out how he did those strips, but applaud doing it that way. I've seen cheaper Fiamma skylights that have loads of screws around the top flange like these Maxair's have and it's messy and asking for leaks. So many holes and not necessary when clamp mounts work better. A bit surprised they use that method (screws).

 

[CazPaul]

Couldn't quite work out how he did those strips, but applaud doing it that way. I've seen cheaper Fiamma skylights that have loads of screws around the top flange like these Maxair's have and it's messy and asking for leaks. So many holes and not necessary when clamp mounts work better. A bit surprised they use that method (screws).

Yes so am I, with the quality of adhesive these days it seems much better to do it with no screws.