Flooring Challenge - Seeking Wisdom for Van Conversion

Flooring Challenge - Seeking Wisdom

We will be putting in subflooring and insulating the floors w Havelock Wool over these next 2 weeks. My partner is 5’10” and we have a FT medium wb and medium roof, so we want to make the floor as thin as possible, and one that will last.

Questions: 

What’s the thinnest plywood you would go with for a subfloor? Any special kind of plywood? (our top floor would likely be vinyl)

What size and kind of wood would you use for the ferrel strips between the floor groves? (this wood would be glued to the kilmat and the metal floor in the spaces between the kimat)

Are ⅜ ferrell strips too thin for screwing subfloor into? We are considering gluing the plywood to the ferrell strips vs screwing. Good idea or not and why?

Wool insulation in the floor goes where in this layering process and how?

What kind of glue would you recommend? One glue to glue the ferrell strips to the metal floor/Kilmat, and one glue to glue the plywood to the ferrell strips. 

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Answers 1: 

What’s the thinnest plywood you would go with for a subfloor?

9-12mm

Any special kind of plywood? (our top floor would likely be vinyl.)

Depends on moisture usage, if you are planning on having toilet, shower or water usage then marine ply

What size and kind of wood would you use for the ferrel strips between the floor groves? (this wood would be glued to the kilmat and the metal floor in the spaces between the kimat) 

2x1 battons are overkill, 1x1 with pilot holes so doesn't split.

Are ⅜ ferrell strips too thin for screwing subfloor into? UK conversion rates of measurements yes it is.

Glueing is cheaper but less secure over time vs screwing you know it's in place and is secure.

Wool insulation in the floor goes where in this layering process and how? Between the battons and under the ply, do section by section otherwise loads of mess to try and see where to apply ply boards with battoning. 

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Answers 2: 

25mm batons, 25mm kingspan, 12mm ply (wpb) and whatever flooring material you wish. 

Some people lay silver foil over the batons, too. 

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* Insulation 

* Flooring 

* Van Conversion 

* Vanlife 

* Conversion for Vanlife