jntabbycat

Good suggestion may cut the bottom of the battens at an angle so they come down a bit too. Also thinking of using marmox blocks under the sole plate as suggested on this forum.

Hiya, just came across this while looking around. Did you run the Marmox block under your external door thresholds too? Our door threshold will be level with the internal floor which means the screed will be above the timber sole plate (not sure if that’s ok or not) unless I delete the marmox where the door is. hope your project went well looks impressive in the photos up to damp.

Wall detail too thoughts appreciated folks ?

Hi all, been a while since I’ve been on here but finally started the timber frame porch. I plan on adding some insulation on the outside of the 140mm concrete blocks. the screed is above the timber sole plate…not sure if that’s acceptable? any other pointers? Chris

Any update to this? Finally got planning permission, in to building regs now. Be great if you did have a section drawing of the wall/floor connection etc.

Looking at this again and with what I drew above it looks like I’ll have a cold bridge through the bricks with only 2” insulation between the brick and the floor slab. any way round this?

I’ve drawn this. Think it’s ok based on what I can find online etc. not included makeup of wall just the timber. single skin wall on top of footing with baseplate fixed above dpc. From the bottom. 150mm blinded rubble or type 1 compacted, 1200 dpm, 75mm rigid insulation, vapour control layer, 100mm concrete, 50mm screed. Insulation around edge of slab 50mm thick.

Definitely building above ground with brick up to DPC. Possibly engineering brick with a dark mortar so it looks ok. I’m more concerned with what happens with regard to connection of timber frame to the brick in terms of insulation. Single brick up to dpc and then frame on top is fine but the brick will need insulation on the inside presumably as opposed to cavity wall. Hope this makes sense. The actual footing will prob be same as house. Ground is very solid about 750mm down so BC were happy on rear extension with just 750mm deep. Want to use timber frame on front to keep the walls as this as I can and gain space inside.

Looks good from that image. This is what we’d like to build, finally (assuming permission is granted). Just a small porch with a downstairs toilet.

Thanks, will check it out. We are partially cladding with Zinc and partially with cedar....or possibly painted black timber. Only a small extension really but should look nice. Be interested to see what your architect comes up with. Love corrugated sheet!

Hi all, Does anyone have any details/drawings or even a sketch of a typical foundation for a timber frame extension where it is to be clad rather than a brick outer leaf. Normally 100mm brick then cavity then timber frame (sitting on brickwork). With no outer brickwork do I just build up a single wall to dpc and increase insulation on the slab inside? I have googled it but nothing seems very clear and most buildings have brick outer. Likely using 100mm timber frame with insulation over and in between. Chris

Hi all, just had a read through this thread. I use Sketchup and do find it really easy to use. As @recoveringacademic mentioned, learn a new part every time you use it (youtube is your friend for tutorials). Layers are pretty easy to use except when you have been drawing for half hour and realise your working in the wrong layer, easy to rectify though. Not sure how it works with plans etc as I don't have layout (need to do plans myself) so might have to resort to pencil and paper!

@Nickfromwales Haven't decided yet. Was thinking about gaining some experience before I go self employed but yes is the short answer. if in doubt cut the brown one ?

Prob is the kitchen is small and would benefit from the extra space the shower is using up. Downside is toilet will be off of kitchen but sadly no way round that and no where to move it. If the toilet could go too it would make things easier but then loosing downstairs WC is perhaps not wise with regard to value/resale and poss regs. @Nickfromwales on a side note I'm halfway to becoming a domestic installer. Done testing, practical and part p course. Just 17th edition to do next and the big yellow book! Any pointers?

i googled ebuild and found a thread on green building forum. On there it had a link to here. :-) all seemed sudden with ebuild!