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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Carpentry Questions >> Roof Joists and Woodworm https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1159372562 Message started by Gammy_leg on Sep 27^th, 2006, 4:56pm

Title: Roof Joists and Woodworm
Post by Gammy_leg on Sep 27^th, 2006, 4:56pm

Chaps,

Are new roof joists pre treated for woodworm. My house had an extension built in the late 90's and it included a new roof. I have just finished treating the existing 1930's roof timbers and was wondering whether I need to spray the new ones as well.

Thanks

Gammy

Title: Re: Roof Joists and Woodworm
Post by WOLF on Sep 27^th, 2006, 11:17pm

new timbers are not usually pre-treated for anything such as woodworm!! they may be tanalised and that is about it!!!

so i'd spray it all dear chap!!

the old safe rather than sorry syndrome!! ;)

Title: Re: Roof Joists and Woodworm
Post by woodsmith on Sep 28^th, 2006, 7:14am

I've just been working in the loft of a 10 year old house and the tell tale signs are there, flight holes everywhere :(

Another vote for the sprayer.

Title: Re: Roof Joists and Woodworm
Post by Stair on Oct 7^th, 2006, 10:42pm

in the old days they used to put sacrafical timber into lofts to attract the woodworm cant rember what type but ovsly taster to the woodworm

Title: Re: Roof Joists and Woodworm
Post by woodsmith on Oct 8^th, 2006, 9:12am

wrote on Oct 7^th, 2006, 10:42pm:

in the old days they used to put sacrafical timber into lofts to attract the woodworm cant rember what type but ovsly taster to the woodworm

That would be a great idea, anybody know what wood it is?

Title: Re: Roof Joists and Woodworm
Post by MarkS on Oct 8^th, 2006, 9:36am

probably some softwood like pine.

In the old days they used decent wood to make the roof, these days they use... Oh Dear!....cheap pine.

Your Roof Truss *is* the sacrifice!

check the roof structure. Woodworm like fairly damp conditions - any condensation probs ? Ventilation ? leaks ?