Wednesday, April 4, 2012

INSULATION

R4.0 'Pink Batts' fibreglass wool  insulation is placed between the roof framing throughout the house, with straps stapled to the timber framing to secure the blankets in place.strapped into position. Once this layer of insulation is installed, a layer of 'Intello' is fixed and taped to ensure airtightness.  Another layer of r2.2 Fibreglass Batts is installed to compensate for the steel structure to ensure there is no thermal bridging.









Once the insulation is installed the proclima 'Intello' membrane is continued and taped to create the continuous airtightness layer.





Gib Rondo batten system is a galvanised metal extrusion that is used for fixing between the timber framing (wall and ceiling in this house) and a second layer of R2.2 
insulation is added between the battens.



11 comments:

squashplayer said...

Again, another nice set of photo's. Am I correct in stating that the roof space (above the insulation) is a cold space? The Proclima Intello provides an airtight barrier on the warm side...so does this mean that the cold roof space is NOT airtight and, in fact, would need to be vented? If this is the case is effectiveness of the insulation reduced due to "windwash" i.e airmovement across the top of the insulation?

eHaus said...

A good question to ask! 60% of the roof area has a skillion or flat roof in these areas the 3 layer approach is valid; the roofing underlay can only act as the third layer when there is no air movement between it and the insulation. If there are no provisions for ventilating the roof space, the roofing underlay can be seen as the third layer. If there is however air movement by design (it may be desirable or even necessary to have some for some situations), you need another layer, eg a breathable membrane on top of the insulation. This will also help with keeping the insulation dry, as you can expect some condensate under the roofing with a ventilated roof in clear nights (some underlays are however capable of absorbing this). Basically, it's always a good idea to sandwich insulation.

Regina said...

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Mark said...

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Alice Chen said...

With the insulation in this house, what would be the R-values that you are aiming to achieve for the roof and walls etc? I'm just curious as to how much higher the values are as compared with building regulations on insulation in New Zealand.

Don said...

Was there any reason not to choose a polyester type product, such as Autex or Insulpro?

Kevin Noel said...

It's a good thing to combine both of these materials. It would help increase the air permeability of this building. And from that, it can maintain a good balance of heat and cold circulation of air in the building. Reducing the uses of heaters and AC unit depending on the type of climate a country has.

Kevin Noel

Jackie Champion said...

Hey! You have such an interesting and informative page. I will be looking forward to visit your page again and for your other posts as well. Thank you for sharing your thoughts about roofing in your area. I am glad to stop by your site and know more about roofing. Keep it up! This is a good read.
The durability of a roof is a matter of concern because the roof is often the least accessible part of a building for purposes of repair and renewal, while its damage or destruction can have serious effects.
Asphalt- Most common, lifespan up to 20 years, looks great on many home styles.

Roofing Salem NH

Klein Smith said...

These pictures seem to be very beautiful. Thanks for sharing these useful information about home insulation. We can insulate our home by using some materials such as polystyrene, wood etc...
Home Insulation NZ

vikas Kashyap said...
This comment has been removed by the author.
vikas Kashyap said...

This picture shows all insulation in NZ completely. These pictures are very attractive also. Our Insulation material also should be very good quality. Overall great post. Thanks for the post.

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