What is the best system to give a good uv value!

[jayjames]

hi, i`m looking to insulate my own house , its a 1930`s with a 1 inch cavity so i need to insulate the outside,
i was told that to bring it up to current UV value i need 80mm of insulation.
I could put 80 mm on but that would mean changing a lot of the sills and extending a few tile verges,
where as with 40 mm i could get away without changing anything,

whats the best product that i could do by my self , something similar to sto-rend??

 

[plasterjfe]

you will not get current uvalue standards with 40mm. Phenolic boards are the best for insulation values but you will still need at least 50mm to get near to the recommended 0.35kw.
On the flip side the systems that use phenolic ins. dont always follow wih the best overcoating render, IMO the better systems usually spec eps or wool. you will need 80 - 90mm wool and around 90-100 eps to get the recommended rating,

if you buy a thermal render system and use 40mm eps you will be throwing your money away, you will be best off getting the most value you can as the difference in cost between 40mm and 90mm insualtion will not be huge but the energy saving will be massive.

 

[jayjames]

thanks
on the reveals i`m not gonna get 80mm or 50 come to that, so would the heat poor out there?
I`m not too obsessed with the UV i`m sure anything is better than nothing, and the outside needs doing as its a mess also.

My nephew owes me a favour and is getting the stuff for me btw

 

[theblones]

Just a thought here but is it possible to fill your cavity with insulation (free i think) then use your phenolic board to clad at 40mm. Not sure what you would get but it would be more than if you didnt fill the cavity.
plus its also possible to insulate internal walls.
your render system on top of the board is approx 10mm max

 

[jayjames]

the cavity has muck snots everywhere, so isnt worth it(so the cavity wall insulation company said)

 

[Dirtybill]

Thats poor advice from the cavity insulation folks, the new stuff in replacement for the cotton wool balls (F*****g disaster) up here is a silver poly ball which they pump in and will get into all the crevases ect, apparently it's more effective and doesnt attract damp like the old stuff.

 

[craigw]

move and buy a new house with all the insulation you need

 

[spunky]

Buy a new one or you're G**

 

[jayjames]

move and buy a new house with all the insulation you need

it would be cheaper to have a sto-rend approved guy put the 80mm on!

 

[plasterjfe]

Sto-rend = the most expensive one out there.

The reveals (if done properly and the system is terminated correctly) wont really cause you any problem, the insulation will be slimmer tho.

good luck it sounds like you are going to need it.

 

[jayjames]

i dont need luck, i just need to know what is the best system to go for, then i can ask my nephew to order it for me, i`ll be installing and applying the materials myself,
I`d like to keep it to 40mm, so what is the best sto-rend equivalent that can be installed by anyone!???

 

[Gibbo]

you cant get the sto gear unless your approved

 

[theblones]

try envirowall they advertise here

 

[lucius]

There are a lot of problems with cavity fill in older houses to the extent that in some cases its had to be removed because of probs with damp, where do you live mate as a 30s house with cavity is quite rare the first built was on the South coast at the turn of the century if i remember right.

 

[jayjames]

you cant get the sto gear unless your approved

Which is why i asked for an equivalent !!

 

[nickelarse]

turn the heating up

 

[owls]

wear a jumper

 

[plasterjfe]

i dont need luck, i just need to know what is the best system to go for, then i can ask my nephew to order it for me, i`ll be installing and applying the materials myself,
I`d like to keep it to 40mm, so what is the best sto-rend equivalent that can be installed by anyone!???

if your nephew has the access to purchase the best systems on the market then just ask him which one as he will already no th answer to that one.

As for 'the system that can be installed by anyone'? I cant help you there, anything in the world can be done by anyone cant it? but it wont b warranted and if it works or not will be a test of time, or not. if a company wants to make money on selling a product they will sell it to anyone

 

[jayjames]

my nephew doesn`t know which is the best , which is why i have asked on here if there is a sto-rend equivalent that he can get for me and i can install,

 

[Plasteringrooky]

Just a thought here but is it possible to fill your cavity with insulation (free i think) then use your phenolic board to clad at 40mm. Not sure what you would get but it would be more than if you didnt fill the cavity.
plus its also possible to insulate internal walls.
your render system on top of the board is approx 10mm max

Have you considered internal insulation? Something like an Actis multifoil inslation system?