Monday 13 September 2010

Insulation Done Today

The chaps from Cosyhome turned up today as promised to apply the spray foam insulation.  It was a long haul for them 220 miles each way.  No sooner were they here and they were straight on with it.  First job was masking up the batons and windows.  By the time I'd made a cupper it was almost done.

Before all masked up

I was very surprised at the material.  I had in mind a type of foam you get in a can but on an industrial scale. Not so.  This stuff is a 2 part product and is heated and sent down the tubes warm.  Its mixed in the gun and starts to react immediately it leaves the nozzle.  It then generates its own heat and sets within a few minutes.  The heat it generates is enough to raise the inside of the boat to about 75C.  I am also surprised just how "hard" the finished foam is.  You can't dent it with a finger.

After about 2 hours

Once it had set off completely the chaps set about removing the masked bits and cutting back any high spots.

Peeling of in progress

All done

I am very impressed with the finished job and the chaps that did it.  They arrived on time, did what they said they'd do, cleared up after them, and very nice blokes as well.  I do and will certainly recommend their services to anyone.  Total time about 5 hours.  Cosyhome.  

Now hers a real surprise......... all that foam weighs in at 170kg  When you pick a bit up it weighs nothing, even a big bit  but cumulatively it all adds up. 


  1. Hi Kev, Absolutely love the blog - have digested just about every post on here - wondered if you had a spec on the foam and any dimensions for the steel supports (scantlings etc ) on the hull, cabin and roof. Many thanks - Rob

  2. Hello Rob

    Glad you like the blog.

    The roof bearers are 50 x 50 x 5 box section and the scantlings base are 75 x 50 x 6 angle and the side are 50 x 50 x 5 angle.

    The foam was 2" sides and roof and on the chime below the waterline it was 3"