Want to be part of bulk insulation purchase?

Had a ring around places and compared square meter prices. All places said basically they need exact numbers in order to tell us about bulk discount. But all were willing to give some kind of discount and / or free delivery.

What does everybody think?

In order to get final figuers on discounts I will need final numbers. So please read the information below and let me know what type of insulation you need and how much and maybe how soon. Please differentiate wall and ceiling insulation and specify the R rating you want.

Any questions?? Just give me a call 6223 3332 or click HERE to email.

cheers Dorka – 101

Price?
Glasswool is the cheapest stuff. Polyester and thermowool may be superior products but are up to double price of glass batts. Glasswool for the ceiling is definitely the cheapest option and for people insulating large areas it will make a big difference to costs.

Batts or blankets?
Batts are cheaper than blankets. Batts are usually used for most framed walls, floors and ceilings.

However, blankets are a very good way to add extra insulation to ceilings (most Tasmanian homes have inadequate ceiling insulation). The best way to add insulation to your existing ceiling is to lay blanket over the ceiling joists. That is, on top of the insulation that is between the joists. The blanket does not need to be very thick, because it is an addition. It is also easy to remove in case there is a need to do wiring or something in the ceiling space later on. Insulation batts between the ceiling joists are okay but that does not do a complete job because there may be little gaps and the joists themselves transmit heat.

Preferred materials:
Glasswool has to be installed wearing protective clothes and mask. It has the Asthma Foundation tick but the “polyester” people say about that “anyone with enough money can buy that tick from the Asthma Foundation”.

Glasswool apparently will break down longterm (10 years) and crumble and can’t be moved, so they say. It can cause air pollution especially in houses with ventilation ducts or old houses where things are not sealed of properly…Well I leave that to you to investigate further. Here is some information from the “polyester sellers” which they googled.
health-risks
pink-glow

Rockwool. This is generally superior to glass wool, also better for sound insulation and can handle much higher temperatures (good for places adjacent to flues). But is more expensive.

Polyester and Thermowool? We will go for either of these because we don’t want to take a risk with those allergies and asthma in our family and also we will only need a small area to cover. No protective clothing needs to be worn during installation of polyester, no health risks, doesn’t break down long term, not eaten by rats, fire proofed…

What advantage does thermowool have over polyester? Well, this is what their website says. “Thermowool blend is superior to synthetic insulating materials because it won’t slump or compress, and retains its R rating for the life of the building. Wool insulation has benefits others can’t match. Because of wool’s natural ability to absorb and desorb moisture, the wool acts like an evaporative cooler and heater, cooling when it’s hot and warming up the house when it’s cold. This has been proven by the CSIRO with tests done in Central Australia where the temperatures are extreme.” (as stated on the website).

Closed cell foam (semi-rigid): This comes in rolls 1 metre by 30 metre and can be used like a blanket – spread over ceiling joists or in sandwich roofs (where there is no attic space). Is apparantly non-flammable.

So….. what to get?
Maybe we can get in two bulk deliveries. One for polyester or thermowool and one for glasswool/pink batts.

Lastly, here is a Good Information Sheet from Victorian government.

PRICES – PRICES – PRICES – PRICES – PRICES – PRICES
(To make it easy, all prices are per square meter, so you can compare them easily.)

For walls or floor R 1.5 is recommended or R 2 for cooler rooms (south facing, dark…). For ceilings R 3.5 is recommended.

Glasswool (Bradford)
Ph: 6234 3481
R 1.5 – $4.24 (wall)
R 2.0 – $5.45
R 3.5 – $5.88 (ceiling)
R 2.5 – $11.25 (ceiling blankets – more expensive because lower demand)
Discount Deal: need final numbers

Glasswool (Aurora)
Ph: 1300 306734
R 2.0 – $5.20 (wall)
R 3.8 – $6.35 (ceiling)
R 4.0 – $7.62
Discount deal: pay within 14 days and receive $20 discount if order of more than 55.2 meter square or $ 30 for 110 meter square and more

Polyester
Insulate Tasmania Ph: 6271 3434
R 1.5 – $6.35 (wall)
R 2.0 – $8.50
R 3.5 – $15.5 (ceiling)
Blanket: $7.80
Discount deal: couple of hundred of whole house insulation plus free delivery, need final numbers for final discount.

Cool or Cosy (ph 6272 1699) also sell polyester insulation at much the same price.

Wool / Polyester blend
Thermowool Ph: 6272 3189
R 1.5 – $5.10 (wall)
R 2.0 – $6.70
R 3.5 – $12.50 (ceiling)
(No blanket available)

Closed cell foam
Cool or Cosy Ph: ph 6272 1699
$15 per sq metre (not sure of R rating)
They also sell blown-in cellulose fibre which is good value at $10 per square metre fully installed and made from recycled materials. Ony good for ceilings though.