Render timber frame on brick extension.

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Hairybear

Member
Hello all.

Been a while but thought I'd ask those with far more knowledge of finishing timber frames than me for some advice.

Hopefully you can see the picture. Timber frame ontop of a 40 yr old brick extension with an RSJ in the middle. Nice.

Both parts are to be rendered as the existing bricks are red engineering brick, a proper eyesore currently.

Current plan is to batten from soffit to floor, rendaboard and k-rend. This said, id like to match existing pebbledash... so does anyone know if traditional s&c is achievable on a timber frame? I'm thinking not...but who knows!

I'm doing this at my house... no customer to deal with.

Any and all comments welcome, as long as they're sensible!

Cheers.
 

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Natwasere

Well-Known Member
I can't see why you couldn't eml it and give it sand and cement 3 coats.... top one dash. Not sure it's the done thing anymore though
 

Runswithscissors

Private Member
Hello all.

Been a while but thought I'd ask those with far more knowledge of finishing timber frames than me for some advice.

Hopefully you can see the picture. Timber frame ontop of a 40 yr old brick extension with an RSJ in the middle. Nice.

Both parts are to be rendered as the existing bricks are red engineering brick, a proper eyesore currently.

Current plan is to batten from soffit to floor, rendaboard and k-rend. This said, id like to match existing pebbledash... so does anyone know if traditional s&c is achievable on a timber frame? I'm thinking not...but who knows!

I'm doing this at my house... no customer to deal with.

Any and all comments welcome, as long as they're sensible!

Cheers.

Hello hairybear

You need to understand that timber frame structures will settle and move, usually compress, and within the first 12 to 18 months after completion

Sand and cement is a very hard, rigid and brittle finish, so settlement or movement in the structure will cause the s&c to crack and fail (although it gets done, and has been for years, it is now old school and superseded by modern thin coat renders and finishes)

You can install a battened (drained and ventilated cavity to protect the timber structure) and render carrier board (such as Knauf Aquapanel Exterior), then apply a minimum 5mm basecoat and mesh layer first. This weatherproofs and binds all the boards and can then have options for finish coats.

Some render system suppliers have modern flexible dash receivers, suitable for this application... some spreads will then use a thin layer of s&c as a dash receiver....

By all means get in touch with me for more info about Knauf Aquapanel Exterior for this application

Good Luck
Richard Lord
Knauf
Rlord@knauf.co.uk
07918766577
 

Rich1981

New Member
Hi There you could try and give it 2 coats of Bostix/Cementone Damproof & waterproof sealant, followed by using SBR (1-1 ratio with cement) and then meshing (EML) over the top of it with a scratch coat and topcoat better to be safe than sorry. Thanks
 

CeeVee

Well-Known Member
Hi There you could try and give it 2 coats of Bostix/Cementone Damproof & waterproof sealant, followed by using SBR (1-1 ratio with cement) and then meshing (EML) over the top of it with a scratch coat and topcoat better to be safe than sorry. Thanks
Wow you get up early
 

Dropsalot

Private Member
Remember mate no-one on here would ever do any rendering on a Tuesday , 'specially timber frame. No sir not Tuesday.
Btw it's good that you only wanted sensible advice, stops the dickheads straight away.
:D
 
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