new roof

[cart]

Hi there all,
I have purchased enough sheets of solartuff to re-roof a back pergola and after reading various posts I will probably cook to death when we do get those brief hot days down this way.

The specs say
light transmission 20%
shading effect 0.54
colour smoke grey.

If anyone has an opinion of like "yep u will cook" the its too late as its arrived but however opinions would be appreciated, not to harsh though.

My main question is I live in southwest victoria, I am going to remove the existing roofing material and replace it with the above,can I fit this new stuff myself and would I need some form of permit to do this?



Thank you
Cart

[les88]

Yep you will cook.... I have fastened a heavy canvas tarp., over mine.
les

[Barry_White]

Like Les says you will cook. I have seen shadecloth suspended underneath to cut down the heat.

When I was with Spanline I sold a customer a $20,000 replacement for his because he could no longer stand the heat and couldn't use his patio in the summer.

[SilentButDeadly]

If you can arrange the roof in such a way to allow the heat generated under the solatuff to rise and escape then that will help...split the roof slope for example

With mine in NW Vic, it'll be south facing and part of the total roof slope....but I'm going to put a couple of whirlys at the top of the solatuff portion of the slope to try and create air flow...and potentially drag out some of that heat.

[Make it work]

My main question is I live in southwest victoria, I am going to remove the existing roofing material and replace it with the above,can I fit this new stuff myself and would I need some form of permit to do this?

Cart,
No one has even looked at your main question.

If you are not altering the frame or structure in any way but all you are doing is replacing the roofing sheets, I can't see why you would need a permit.

If you DIY, are you up with how to fix the polycarb sheeting. Right screws, 23mm dome washers and 10mm holes through the sheets at each screw?

Good luck, if you cook then deal with it, but it should let lots of light (and heat) in.

Alan M

[cart]

Thank you all for your responses.

If you DIY, are you up with how to fix the polycarb sheeting. Right screws, 23mm dome washers and 10mm holes through the sheets at each screw?

Yes I have, to above quote and thank you make it work .I have purchased a box of a thousand correct screws with the cutting blade on them to cut the 10mm hole and am aware of placing the overlap for wind direction etc,the son in-law is a plumber so he has told the correct spacing for the screws on the battens, so I am all good there.

As for the heat side of things bit of a lack of home work there by me,I suppose the end result with the solartuff sheeting was cheaper than putting up tin at the time,the pergola is not closed in so hopefully some ventilation might be there to assist in dispersing the heat and the idea of whirly's on the roof might be something I could look at, thankfully we do not get as hot as those up north so my days of extreme heat is limited ( trying to convince myself all will be good )
The sheeting that is up there at present is very old fiberglass stuff in an opaque colour and covered in litchin, lol when we get the smallest of hail it just punches through it,I don't even think the birds are game enough to stand on it, thats how rotten it is.

Thanks again Les,Barry,Silent and Alan for your replies.

Cart

[cart]

The roof is starting to go on, from what is on it looks good all nice and clean looking.

Two things I have learnt, make sure first sheet on is square, mmmmm I had to do a bit of adjustments along the way to square up,can hardly notice it though, secondly I am using like one shot screws and the cutting balde is part of the screw up near the head, I held the screw on the cutting blades to just keep it steady fired the drill up. sure rips the thumb about when those blades hit.

[davo453]

My 2 cents

Errr yes cook is the word, we did a pergola on one of our houses using the stuff but instead of doing the whole thing we used Colourbond on the sections not over the windows, that cut the heat & cost down a bit.

This was in Perth by the way and in the height of summer it would have made a great solar kiln.

I believe you do need a permit to close in a pergola, because it's then not a pergola, it's a patio, pergolas aren't designed to take the forces of an up draft in a storm.

DIY fitments is I think ok though as long as you use the approved number and type of fasteners etc.

We didn't get a permit to do ours as it was in a pretty remote area on a farm, would have taken a very keen inspector to risk going past the Rottweilers & Geese

Cheers

Dave

[Make it work]

I held the screw on the cutting blades to just keep it steady fired the drill up. sure rips the thumb about when those blades hit.

Ouch!

[cart]

Hi all,
I have put the solar tuff sheeting on the pergola( never again will I do that on my own)
I did not use any tape under the sheets to dampen the creaking noises, so now it is up, I am learning of all the wonderfull things this stuff does when exposed to the sun.

Without having to pull the sheets off to lay tape down, could I very carefully put the tape into place with the sheeting on,by just pushing the sheet up from underneath a slight bit and sliding the tape into place that way?
Or should I just save some dollars and leave it be.
I have not seen what the tape is like so I am flying blind here on how it sits on the battens.

I am hoping someone may have encountered the same and got by with cheating so to speak.

Allowing as well that this type of roofing is all new to me and the noise factor I never heard on the previous roof, so it is far more obvious to me at present.

Thank you
Cart

[davo453]

Ours still creaked and we put the profiled foam stuff under it as we put it up. I think it was more to do with the joins along the long edges of the sheet.

Not aware of a fix for that that would be invisible. You got used to it after a bit.

Cheers


Dave

[thesupervisor]

couldnt you rig up a cheap mist spray retic system to combat the heat ?