Here's how Paul a UKcampsite member installed a mini Heki roof light.

Click on a picture to make it bigger

First shot shows the ladder used.

The dust sheet was to protect the awning rail

This was the old and black spotted roof vent

You can see how the vent has aged

The first thing to do is unscrew the old inner surround

You can now see the caravan roof  and wooden surround

Outside, you need to carefully cut around the old mastic

Once done, you can gently prise the old roof vent up

This will leave a lot of the old mastic that needs scraping off. An old wooden spatula will help!

White spirit will disolve any remaining mastic. I used plenty of kitchen roll to wipe off the excess.

Once all the mastic was removed, i used some Fenwicks caravan cleaner to clean the entire area. I then used some Meths to give the area around the vent a final clean. Use plenty of kitchen roll to make sure no residues remain.

I test fitted the vent to make sure it would fit. I then got two rolls of W4 mastic. (19mm/32mm)

I used 32mm roll on the leading edge, and 19mm on the remaing three. Make sure you over lap the corners.

Before fitting the vent, i also put an extra seal of 19mm roll around the caravans hole. (too create a double seal)

I then dropped the mini Heiki into the hole, making sure the gaps were even each side. The vents hinge faces the direction of travel etc.

Inside, the vent is ready to receive the inner surround

Next two pics shows the inner surround fixed to the top vent. I had to cut 4mm of each lug before fitting.

I fixed each screw lightly before tightening them all up. I criss crossed each screw to make sure of an even spread of pressure. After about ten minutes, i did a final tighten

Up top, i double checked to make sure all the mastic was compressed and sealed.

I noticed that there was a gap at the front due to me using 19mm to seal the caravan hole. (should have used 32mm like i did on the vent!)

It was actually sealed, but looked like a gap.

This was no trouble as i just used some Sikafix 512 to seal the gap and add extra protection against water ingress when towing

The finished job

Inside the final covering shroud was fitted, and all looked well

Here's the final inside shots showing the blinds and fly screen

Well that's it folks

It took about an hour and a half, and cost about £90 for all the parts

It has made a big difference to the light inside the caravan, and the vent allows a lot more hot air to vent on the sunnier days. (and when cooking)

Anyway, here's vent in full use at Cae Mawr Anglesey.

1997 Bailey Pageant Champagne

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