7n exterior? Why
Blocks - so many choices! What do you recommend?
- Thread starter kingandy2nd
- Start date
Sponsored Links
Rendering externally so denser = better...or so I read.
Aye, made a nice change from my old terrace where the SDS had to come out for every other job! Could drill a hole in thermalites with a spoon
Just for consideration... when I built I chose 3N blocks for both inner and outer skin rendered on the outside with a 100mm cavity and rock wool batts. My reason was this is standard construction and cheap (90p/block). Went for this as did not want to use thermolite/breezeblocks internally as I’d be hanging kitchen cupboards on it and thermolites are made of cheese.
BC had no issues with U values.
BC had no issues with U values.
Last edited:
Sponsored Links
Thanks for the input.
Your thread a while back about your kitchen extension is one of the reasons why I’m considering the DIY route for mine - really enjoyed the read and you did amazing.
Got BC coming round next week to sign off my drains (hopefully), so I might get calculating some U values and cost values for different set ups and have a chat (not that BC will care about the cost calcs!)
Thanks for the compliment! U values for my construction were fully within regs.
Why not? Much easier to render.
I discovered (much to my delight) you can buy 7n lightweight fellas which we used on this job...
They are coded with a different spray to the 3.5n fellas so you can define, as they look and feel very similar.
Because the designer is a ****, like asking for 45mm Celotex, crappy lightweight blocks and a rubbish God awful partial fill.
Like when they specify code 6 lead for regular cover flashings.
Like when they ask for ridiculously thick single layer Celotex.
Like when they ask for GRP flat roof coverings.
Some designers are best ignored.
Last edited:
Why not? Much easier to render.
I discovered (much to my delight) you can buy 7n lightweight fellas which we used on this job...
They are coded with a different spray to the 3.5n fellas so you can define, as they look and feel very similar.
outer skin of your gable end looks like aerated? Are they fibolites?
Why don’t you rate GRP flat roof? Thought it stacked up pretty well against other coverings.....
As long as the temperature is holding steady at 21.3 degrees C, the air moisture content level is constant at no more than 44.6% and the boards have been kiln dried 8 minutes prior to laying - then fine.
Excellent. The exact conditions I laid mine in.
L
Leofric
Sometimes in some cases yes, like some builders and some people who comment on here you could say
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
Sponsored Links
