I had to make a video on using this house wrap and tape. They're some of the best products that I've used and would love to do more houses this way if they weren't so pricy (it cost $700 just for the tape for downstairs)
Funny thing is Dave, over the ditch they have been doing this for at least a decade ..... it's been so frustrating seeing inferior building practices being used so often in the land of 'She'll be right mate'. When I first came here 12 years ago I had stand up arguments with Architects about the poor Weather Proof detailing in builds I was involved with. When you build for yourself make sure you look into cavities behind the cladding. It's way more important for the Longevity of a building than folk realise..... Good on you mate for taking an interest and caring about the product you produce, not just the money you get out of it.
First time I went to pick up an aluminium window from the factory here for a job I asked about the head flashing for it which is standard in NZ..... they looked at me as though I was mad.... never heard of it. I finally figured out that cuz most of them went in brick homes, the culture never developed here. Sometimes they use a bit of thin aluminium from a roll of your lucky..... let's not start on the lack of scribbers..... I get head flashings made out of colourbond and use those now....
We use this wrap on passive houses all the time, its great stuff. Didn't know it could be exposed for 6 months that's good info. Hope you don't need to straighten around that window, your buzzer isn't going to like those staples and wrap haha, great video mate!
I moved to qld from Nz 6 months ago and find it insane how little goes into weather tightness here. This has been standard in Nz since I started my time 10+ years ago
that's the frustrating bit, so many people ignore the climate - should all be done the same way no matter where you live. In warm humid climates the house will be open most of the time (more efficient to keep windows and doors open), design houses with good cross ventilation, big roof overhangs to protect against rain and sun and well protected thermal mass (protected from direct sunlight). Louvred windows are common that can stay open during light rain. Ventilated walls and roofs allow heat to escape before putting heat load on inner surfaces plus ensures walls and insulation stays dry. In comparison, in cold climates (NZ, Tasmania, Melbourne, UK) air tightness, double or even triple glassing, high insulation and MVHR (heat recovery ventilation) will typically be required.
I’m subbed to Perkins builder bros and RR builders in the USA watching the products they use to build houses. Good to see Aus taking a few tips and implimenting similar products with taping for water protection.
Lots of the OSB products used in the US for sheathing are vapour impermeable. This can create a dew point in the wall assembly resulting in rot and mold. These wall raps are vapour permeable reducing the chance of moisture build up in a wall assembly especially coupled with a ventilated cavity.
Nice Work, the Extora is pressure-activated so you have to use the blue paddle or something similar to make it stick properly. also, I usually set my windows on 10mm packers to create an air gap under the sill. helps moisture escape out the Extasana but you still need to maintain a 15mm gap above the window to adhere to NCC code. Window openings on site are always set 40mm larger than the height of the window for a bit of wiggle room.
Never used this product before looks interesting love too see new materials! We cut out our window openings leaving a 100mm plus gap around the water seal on the windows then sika flex to the window frame and cut of the remainder so there isn’t any gaps between the sarking and the window itself! Gunna try this product though, love the flexi tape! ✌️
Matt risinger on the build show.. watch those vids and it will blow your mind... Also with the window exto tape, proper application requires a specific roller to be run over the tape.
So glad you shared this vid i had just assumed the stretchy tape wasnt sold here in oz as never seen it in shelves at the trade supplies places...been watching risinger for years
We normally have to install our windows from the outside. The windows i've installed here in NZ is too wide to fit from the inside because of the outside trim of the windows.
Great work mate, keep at it. Aussie house wraps have been a joke. They've basically consisted of aluminium foil which traps moisture and on top of that poorly installed. The more young guns like you learn and share the better!
Been using this product for years now , I've been building passive cooled homes for quite a few years now and ,it won't be long till this becomes a standard but building products need to become cheaper for this to happen it's already too expensive to build ATM
Hi Dave, that's a good product and I definitely recommend all to use it. I recently got trained by performance membranes to use it. Can I get your contact details I am planning to build my house in future looking for a framer like you. if you are interested let me know it's in the west.
Next wrap I get to do? I'll try and video it for you... Give ya the tip?... We used to do 3-4 single story's a day per man. The target is 100-125sq mtrs an hour. Only if you want me to?
So that membrane doesn't let moisture in so I suppose it won't let moisture out either? Wont you get condensation build up on the inside with it then? Not a builder so I have an excuse if it's a silly question :) Cheers
But escape to where is the question..... hopefully, the backside of the cladding has a way of wicking the moisture back outside again. Weatherboards without a cavity won't, that's for sure. Vertical corrogated iron on the other hand, works really well....
This is all pretty standard in NZ, but, just for a laugh and out of interest, how much you paying for the 150mm flexible tape roll? Over here it's sold as a proprietary branded product and is the most expensive on the market. Works out to 162 AUD At my trade rate.
