@JamesPall looks very professionally done.  Can you give  bit more detail of your wall build-up (140/70/50)?  I'm guessing the 50mm is the internal battens?  And did you do the GRP roof all yourself.  If so, have you done anything like this before?  And how difficult did you find it?

Thanks

@DavidFrancis

I have enclosed a drawing of our wall build up. (Hand drawn) Lots of layers. I made the frame myself. Initial frame was 140mm, then fixed 70mm horizontals and finally 50mm verticals at 600 centres to fit the OSB.

The GRP roof I fitted myself. Have done one before but still find the whole process a bit of a pain, no matter how organised with multiple buckets, tools, latex gloves,  cut matting it is still a messy affair and the conditions have to be dry but the end result is watertight. EPDM is an alternative I will look at next time.

 

 

 

Floor, Wall, Roof Build up Jan 2018..pdf

Thanks @JamesP.  I was thinking of a wall build-up something like this should we re-build our extension.  One last question (perhaps!): how did you fix the 75x47s to the 150x47s?

Very well done @JamesP a true self Build, I like it!

 

Windows really are a pain, you would have thought roller marks would have been picked  in the quality control well before the glass was cut and fitted. You’re not on your own with window problems, my self Build neighbour has had the window company out six times to sort out problems, such as window sets not aligning one above the other, windows not installed vertically within th3 opening, scratched paintwork during this installation, trim warping in the heat. 

@DavidFrancis Throughout the build I have used screws, the initial frame I used Timco waferheads then Goldscrews for everything else. 

8 minutes ago, Triassic said:

Very well done @JamesP a true self Build, I like it!

 

Windows really are a pain, you would have thought roller marks would have been picked  in the quality control well before the glass was cut and fitted. You’re not on your own with window problems, my self Build neighbour has had the window company out six times to sort out problems, such as window sets not aligning one above the other, windows not installed vertically within th3 opening, scratched paintwork during this installation, trim warping in the heat. 

Well I am not alone with window issues, the suppliers and fitters produced really good drawings which the fitters just ignored and some cills will not fit under the window cill drip edge. Some damage on installation with one frame having crow bars marks. The glass is a major issue. The suppliers initially said thats standard, then said they would replace 2 windows and now in conversation with Kastrup to replace 7.

The Internorm slider is fine apart from some  tiny frame damage on installation.

Its very slow to being resolved so wondering if someone can give me some legal advice how I might pursue the matter.

 

14 minutes ago, JamesP said:

Well I am not alone with window issues, the suppliers and fitters produced really good drawings which the fitters just ignored and some cills will not fit under the window cill drip edge.

 

Had exactly the same problem on my build. I can't offer any advice, but you have my sympathy!

Looks great! Roof looks great. We have the same roof and found it easy to fit. Hope you get your problems sorted soon.

That does indeed look like a professional job, particularly the GRP and the metal work. 

Pat on the back time I think  

Thanks again @JamesP. Looking more closely at your second picture above, I looks like you've screwed the 75x47 into the 150x47s using a single horizontal screw at each intersection.  Did you use something like a 120 x 6 screw?  Looking at your diagram, you have the 50x47s inside the 75x47s but it looks like these sit on top of some insulation and not the slab, and you then have OSB, battens and then plasterboard inside the 50x47s.  This seem like a lot of weight being carried on these screws, or is there some additional support somewhere?

 

Sorry to ask so many questions.

@DavidFrancis

Hi David, Yes,  the frame is 150x47  filled with  140mm Rockwool slab, then 75x47 horizontals using 120x5 screws and filled with 70mm Rockwool and finally the 50x47 verticals and filled with 50mm Rockwool. Once OSB, batten and plasterboard are fiited it does project over the sole plate into the room. The celotex fits tight underneath and UFH and screed on top of that. It might well be very heavy but it is a very solid wall.  This wall build up was something I could physically achieve myself but you don't need all these layers to satisfy building regs.  

On the exterior of the frame is a 40mm Pavatherm board then batten, counter batten and cladding.

The roof build up was 200mm rafters, 2 x 100mm Rockwool. On top 70mm horizontals, 70mm Rockwool and Pavatherm on top of those. 

If you go back through the blog the photographs might help.

Do ask if you need more info.

 

 

Edited July 30, 20188 yr by JamesP