Hatches 40x40

This size is the most common for roof hatches for caravans and motorhomes. We have quality brands from Fiamma, Dometic, MPK, Maxxfan, Carbest, etc. Some models have the convenient sandwich mounting where you screw together the upper part with the lower part, no screws in the chassis are needed.

How do I know what size my existing roof hatch is? No problem, read below!
Do you need to replace your old roof hatch? Measure the mounting hole and roof thickness that your existing roof hatch is in. Start by removing the lower frame. Then you can easily measure the widths of the mounting hole and the roof thickness. You measure the roof thickness from the bottom edge of the inner ceiling to the top edge of the outer roof. If you have these measurements, you can easily navigate to a suitable hatch. Unfortunately, we do not have a register where we can see what kind of roof hatch is on your motorhome or caravan.
Please note that all our roof hatches are measured based on the mounting hole the cover and lower frame are larger.