Polycarbonate roof moving and creaking when door is openend and closed

[Michaelsf90]

We have a utility room on the side of the house. Brick walls and a polycarbonate roof. We did the room up at the back end of last year. New flooring, decoration and furniture. I've just finished mopping up the bits that needed doing.One thing I've recently noticed is when the internal door into the room or the door which leads to outside are opened and closed that the roof now seems to move slightly and therefore creak and make a noise. I'm guessing this is due to the pressure difference as the room is now more airtight than previous. None of the floor was sealed. We use to get slugs in there coming up through the gap between the floor and the skirting. I've siliconed this all the way around. Is this why the roof is now doing this? And could this potentially be a serious issue?The door closes slowly by itself but doesn't fully shut. If it's left to naturally close it doesn't make a noise or creak but when the door is opened it still makes the noise

 

[big-all]

is it corrugated and fixed across the ridges and support about every 600mm along its length
or twin wall and fixed top and sides??

 

[^woody^]

Fit an air vent

 

[Michaelsf90]

It's twin wall. I'm trying to avoid heat loss. I know it's virtually impossible with a polycarbonate roof

 

[big-all]

is it fully supported on 3 edges and supported underneath the bottom edge ??

 

[Michaelsf90]

Supposedly. I'm guessing the screws at the bottom of the support bars have come loose. We put this coolkote solar film on to reduce heat. Works a treat but I'm guessing it's causing more expansion than previous and its found its weakest point

 

[^woody^]

Fit a shuttered vent to act as a one way valve

 

[big-all]

Supposedly. I'm guessing the screws at the bottom of the support bars have come loose. We put this coolkote solar film on to reduce heat. Works a treat but I'm guessing it's causing more expansion than previous and its found its weakest point

assuming the bottom edge just sits rather than screwed in along the bottom edge then lift up a fewmm enough to slip in double-sided tape to hold the bottom edge centre section

 

[Michaelsf90]

The issue is I can't access the bottom. The roof is up to the boundary and the neighbours won't give us access. We wanted the roof replaced. The builders came and they said no chance. So the builder said the job can't be done. I could try and possibly tape it from the inside

 

[big-all]

perhaps a thin bead off clear silicon pushed by nozzle into the gap to hold from "chatter" with air movement but not hinder replacement off polly in the future

 

[Michaelsf90]

It's already siliconed. I think the force of air can be that great it's lifting it. I could put a thicker bead of silicone. See if that does that trick. It will allow some movement as well as silicone stretches. The tape is a good idea. It may hold it enough. I'm wondering if it isn't a bad thing as when it expands in the sun it'll lift in the that one position rather than the risk of something snapping or breaking. It's found the weakest point so it'll move in that one position when it expands in the warm weather. The coolkote is the best thing we ever did. The difference is crazy. It's like a normal room when it's now sunny