I need info for joiner on Tony Trays in timber frame

[G and J]

Hi folks.

 

Talking to a joiner today who may well be assembling our timber frame.  I mentioned Tony Trays and tried to describe them but I didn't do a good job- so I am looking for something that describes them in a timber frame setting.

 

I've found an article based on blockwork:

http://tonyshouse.readinguk.org/tonytray.pdf

 

I'll use this if I can't find anything else, but does anyone know of a description/illustration which conveys the essentials in a timber frame?

[JohnMo]

Shows the need for detailed drawings and a clear airtightness strategy.

 

Don't you have room in roof and cathedral ceilings? If so do you need tonytrays? Again back to a clear drawn out strategy.

 

[G and J]

19 minutes ago, JohnMo said:

Shows the need for detailed drawings and a clear airtightness strategy.

Indeed.  This was beyond the remit of our architect (the perils of fixed price contracts).

 

20 minutes ago, JohnMo said:

Don't you have room in roof and cathedral ceilings? If so do you need tonytrays? Again back to a clear drawn out strategy.

No, cold loft, simple trusses, airtight layer under trusses, taped to vcl inside frame upstairs, Tony Tray, vcl downstairs, etc. 

 

 

[nod]

9 hours ago, JohnMo said:

Shows the need for detailed drawings and a clear airtightness strategy.

 

Don't you have room in roof and cathedral ceilings? If so do you need tonytrays? Again back to a clear drawn out strategy.

 

Plus 1

He doesn’t need to understand the why’s or what for Just follow a detailed drawing 

Your SE is better placed to do this Or tell you it’s not needed 

[JohnMo]

8 hours ago, G and J said:

Indeed.  This was beyond the remit of our architect (the perils of fixed price contracts).

Best you get your pens and paper out, or a computer version. Or pay additional.

[G and J]

I spent ages googling.  J took 10minutes to find this which, on investigation, was contained in a document that @ETC posted a while back which I had forgotten about…

 

 

Boy, do I feel dumb sometimes.  

[Tony L]

I'm no expert, but floor joists on ledger boards & hangers seems like an easier way of achieving airtightness.  Perhaps the Tony trays are a good idea if you're going to be doing the work yourself, but I wouldn't want to leave Tony tray drawings with a team of builders to let them get on with it while I was off site.

 

Some learned person, please enlighten me: why are Tony trays often the preferred solution over ledger boards?  Is TF too flimsy for ledger boards?  That can't be the whole answer, because I know TTs are used in blocks.

[G and J]

34 minutes ago, Tony L said:

I'm no expert, but floor joists on ledger boards & hangers seems like an easier way of achieving airtightness.  Perhaps the Tony trays are a good idea if you're going to be doing the work yourself, but I wouldn't want to leave Tony tray drawings with a team of builders to let them get on with it while I was off site.

 

Some learned person, please enlighten me: why are Tony trays often the preferred solution over ledger boards?  Is TF too flimsy for ledger boards?  That can't be the whole answer, because I know TTs are used in blocks.

Dunno, but in our case the upstairs frame is 100mm offset to the downstairs frame, so a ledger board wouldn’t work for us.