Packing up a PVCu door

[RossJarvis]

Okay, apologies that it's not strictly woodwork, but..... I've volunteered to fit a door for the church office, no pay and limited budget. There'll be a big gap under the ally threshold, which is for disabled access and below path level, meaning it'll be fairly damp. Can I pack up on oak blocks or do I need plastic. Do I need DPC round a PVCu frame with Ally threshold.

Any help gratefully received

 

[Doug B]

I'd always pack with plastic, no chance of rotting, foam fill round the frame after fixing & ensuring the door functions properly, no need for DPC.

 

[Eric The Viking]

Be careful how you fix it: PVCu has usually a steel core (if any) and you mention an aluminium threshold strip: It ought to mean the aly corrodes sacrificially, but in my experience, the coatings on screws (zinc, etc.) cause (un)funny corrosion reactions.

Can you arrange drainhole(s) for the threshold trough? Even a bit of buried blue water pipe would probably help. The idea being not having to do it again in a few years time.

Go with Doug's advice.

 

[RossJarvis]

Thanks for the help guys.

Normally I'd use plastic packers but there'll be a big gap, about 30mm high by 140mm deep and 1000mm across, the packers I've used haven't locked together and I was wondering a bit about stability (toppling). As I've got a big lump of oak I was just wondering whether this might do as I could fill the whole gap.

Ross

 

[MMUK]

30mm x 140mm gap? I'd fit a reinforced uPVC 150mm cill unless it's an Exitex threshold (in which case they don't sit on cills with a back upstand).

 

[Bradshaw Joinery]

tape the packers together to save balancing them ontop f each other. use a trip to cover the gap?