Or

Osprey

24/11/2008 2:52 PM

Scarf jointing fascia boards

Fitting a number of new fascias to a new project.
Paid extra to get 1" finished thickness softwood & moulding I wanted.

For joints mid run, intend using 45 degree scarf joints (lined up over
rafter end) .... should these be glued or left dry ?

Finish will be dark wood stain.


This topic has 5 replies

Or

Osprey

in reply to Osprey on 24/11/2008 2:52 PM

25/11/2008 1:01 PM

On 24 Nov, 23:02, "Lew Hodgett" <[email protected]> wrote:
> "Osprey" wrote:
> > Fitting a number of new fascias to a new project.
> > Paid extra to get 1" finished thickness softwood & moulding I
> > wanted.
>
> > For joints mid run, intend using 45 degreescarfjoints (lined up
> > over
> > rafter end) .... should these be glued or left dry ?
>
> > Finish will be dark wood stain.
>
> 45 on 1" material isn't much of ascarfcompared to a normal 8:1 or
> 10:1, I typically see.
>
> Have you thought about adding biscuits to strengthen joint and hold
> pieces in position?
>
> I'd definitely use glue.
>
> YMMV
>
> Lew

Good idea ... I can go longer than 45 degree ... not sure what compund
mitre score will allow ... probabky down to 20 or so.

I did think of biscuits ... when I originally was going to but
joint .... are biscuits messy to install on mitre cuts ?

LH

"Lew Hodgett"

in reply to Osprey on 24/11/2008 2:52 PM

25/11/2008 10:33 PM

"Osprey" wrote:

> Good idea ... I can go longer than 45 degree ... not sure what
> compund
> mitre score will allow ... probabky down to 20 or so.

Don't gain enough to be bothered IMHO.

> .... are biscuits messy to install on mitre cuts ?

Not if you have the tooling.

Lew

dn

dpb

in reply to Osprey on 24/11/2008 2:52 PM

24/11/2008 4:53 PM

Osprey wrote:
> Fitting a number of new fascias to a new project.
> Paid extra to get 1" finished thickness softwood & moulding I wanted.
>
> For joints mid run, intend using 45 degree scarf joints (lined up over
> rafter end) .... should these be glued or left dry ?

Doesn't make much real difference -- I usually glue if weather suitable
mostly for the sealing effect. Same thing essentially w/ simply good
job of priming the cut ends. I prefer a longer cut than a 45, but
that's just a preference; no real functional reason.

--

LH

"Lew Hodgett"

in reply to Osprey on 24/11/2008 2:52 PM

24/11/2008 11:02 PM


"Osprey" wrote:

> Fitting a number of new fascias to a new project.
> Paid extra to get 1" finished thickness softwood & moulding I
> wanted.
>
> For joints mid run, intend using 45 degree scarf joints (lined up
> over
> rafter end) .... should these be glued or left dry ?
>
> Finish will be dark wood stain.

45 on 1" material isn't much of a scarf compared to a normal 8:1 or
10:1, I typically see.

Have you thought about adding biscuits to strengthen joint and hold
pieces in position?

I'd definitely use glue.

YMMV

Lew

Sk

"Swingman"

in reply to Osprey on 24/11/2008 2:52 PM

25/11/2008 6:13 PM



"Osprey" wrote
> Fitting a number of new fascias to a new project.
> Paid extra to get 1" finished thickness softwood & moulding I wanted.
>
> For joints mid run, intend using 45 degree scarf joints (lined up over
> rafter end) .... should these be glued or left dry ?

Common practice in this area is to NOT glue scarfed facia joints.

AAMOF, I don't think I've ever seen it done, and would expect that most
cornice crews around here would fall off the scaffolding if you asked them
to do it. :)

FWIW ...

--
www.e-woodshop.net
Last update: 10/22/08
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