"Tim Lamb" wrote in message
...
In message , David WE Roberts
writes

"Tim Lamb" wrote in message
. ..
In message , David WE Roberts
writes
Don't forget the butyl sealant strip along the roof overlaps. The
simplest method I have found is to turn the sheet over on the ground,
apply the sealant strip to the lap, peel off the paper protection and
get help to lower the sheet vertically into position. You don't get
two goes so be exact!

I may have mentioned before.... be aware that these roof sheets are
noisy in variable sunshine. Thumps and bangs from expansion.

No butyl sealant strips involved - just an overlap of the profile.
I have remembered that I have to paint the woodwork with bitumastic
paint before putting down the roof sheets to avoid a reaction between
the metal sheets and the chemical preservatives in the wood.

er... Remind me what roofing sheets you are using.

Rolled steel box section are not rain proof along the lap due to rain
*bounce* particularly on low pitch.

Plastisol sheets which cover 1m width with an overlap.
I got quotes from two suppliers for all the bits and neither mentioned
sealing strips along the overlap.
IIRC I did ask about the overlap and was told that it would seal.
I think I would be more worried about capilliary action than 'bounce' -
but obviously this is my first time using such a sheet.

I struggled to buy butyl sealing strip locally and ordered from the
roofing supplier.

The other choice worth mentioning is *direction of lap*. I guess you will
know which is your prevailing wind. Start roofing from the *downwind* end.

Found a 3M product which seems to fit the bill.
http://multimedia.3m.com/mws/mediawe...6EVs6E666666--

From their website I found

BDK Industrial Products
01473 659059
Levington Park
Levington, IP10 OJE
Fax: 01473 659104

Just down the road from me :-)
Assuming they sell retail - going to ring them.
Travis Perkin stock the seam stitchers.

Rain tomorrow.
Windy today and no second pair of hands.
Still, getting closer every day :-)