Spray Foam insulation in Limerick

tatjana78

I am thinking of getting some insulation done before the winter in my timber frame house attic and came across a few videos of spray foam insulation services offered by Fusion Insulation firm. Had anyone used them? I've rang them and as always been told that their product is the best on the market and suits the timber frame houses perfectly but I am a bit concerned about ventilation system they use, does it really works? I was quoted €1.5k for 175mm open cell spray foam insulation when their rivals quoted me over €2k for the similar job. Even though I 'd like to strike the best price deal, I still have few doubts as to how good the product actually is and is it worth the money paid. As I am not a technical person I would appreciate any advise on same as well as on the company in general. Thanks a million.

Henry Ford III

You can't do the cavity walls on a timber frame house I think as they already have sheets of foam in them.

What you can do is double or treble insulate your attic floor. It's quick and efficient. You'll also need to reinsulate the tank(s) and exposed pipes, as the attic will become pretty cold during the winter.

tatjana78

Sorry, maybe I was not clear enough, we are going to insulate the attic roof rafters only (I think if we do that there is no need to insualtion the attic floors), as our home is a timber frame we can't pump the walls, and I know that, I've done my research on same already.

Henry Ford III

It comes down to cost.

Spraying between the rafters and doing a good job on insultaing the attic floor will do exactly the same thing ultimately, only doing the latter will cost only a fraction of the former.

The only difference is that your attic space would become a hot zone. Do you need this?

In most cases I think doing the attic floor properly should be fine, and it'll leave you with plenty of money to look at better sealing doors, windows, and perhaps an opportunity to fit a stove instead of an open fire?

tatjana78

We were thinking to convert the attic into a room later on, so thought using the spray foam will help to keep it warm so we don't need to use extra insulation afterwards. Or am I wrong?

flutered

sorry to hijack your thread, i have been toying with the idea of spraying between the rafters in my gaff, the lime rendering has all but dissapeared, so slates are starting to slip, would it be cheaper than removing the slates and putting on felt (or whatever is used nowdays) then replacing all the old slates.

martyc5674

Can't believe anyone is considering this.
Your roof was built with ventilation in mind... Spraying this stuff on will trap any condensation and prevent your timbers from breathing causing your timbers to become damp and rot.

If you need the space between your rafters insulated there are other ways of doing this but you need to maintain ventilation to the roof structure.
Otherwise just top up your regular attic insulation.
Marty.

flutered

heck my gaff was erected circa 1890

gctest50

martyc5674 wrote: »

Can't believe anyone is considering this.
Your roof was built with ventilation in mind... Spraying this stuff on will trap any condensation and prevent your timbers from breathing causing your timbers to become damp and rot.

The black plastic "trays" in the pic attached would look after the breathing ?

pilate 1

got my circa 1930s roof done recently.used airseal sprayfoam from galway(090 9646756) they use a breathable foam which prevents
dry rot.i had put a lot of research into the project and couldnt be happier with the outcome.sorry i didnt do it years ago.

bootser

pilate 1 wrote: »

got my circa 1930s roof done recently.used airseal sprayfoam from galway(090 9646756) they use a breathable foam which prevents
dry rot.i had put a lot of research into the project and couldnt be happier with the outcome.sorry i didnt do it years ago.

Hi Pilate,I was looking into doing this about a year ago but was eventually put off by the possibility of my roof Dry Rotting:eek:, how did you put your mind at rest and are you still happy with having gone for this in the end? Finally,if you dont mind me asking, are you in a detachted of semi-d or what? Sorry for all the questions but I do like the idea of going this route myself.