Insulation & Air Tightness before Windows and Doors arrive?

[mike2016]

What are people's thoughts around installing insulation and starting air tightness BEFORE the windows and doors arrive. I plan to wait a week or two to check the roof (fully tiled) is without leaks and the walls are good - seal openings with plastic / OSB / other so I can press ahead with the inside. There is a risk things get wet but has anyone done it? Is it very weather dependant? Thoughts? Thanks. 

[MikeSharp01]

We did it that way. I was taking so long to line up a window company that I decided to go ahead without them and seal up the holes as best I could. The way our air tightness is done is basically to have the whole house sealed internally with Intello+ and I ran this over the roof lights as they were in because the roof was on. I left the window holes though so I had to make temp covers for them. We then pumped the cellulose fibre into the walls through the intello+. The windows are now in so all I am doing is taping round them and fitting the sub structure for the internal window boxes. I still have to seal the intello+ to the slab which is my next job. The first air tightness test should be by the end of the month but for that I will leave the roof lights covered so I don't have to worry about them.

  

[mike2016]

What way did you seal up the openings? Thanks! 

[MikeSharp01]

4 hours ago, mike2016 said:

What way did you seal up the openings? Thanks! 

I just made some temporary frames from 50x25 batten and covered them in clear polythene. 

[Russell griffiths]

Run your airtight membrane straight across the window holes, don’t cut them out, 

cut openings out when the windows arrive. 
 

run some wall roof membrane over the holes on the outside as well. 
 

carry on inside. 

[Gone West]

I had our timber frame totally clad in OSB3 and covered with a membrane. I routed out the openings when the weather improved. It enabled us to work on the inside during the winter months.