metal roof shed condensation problem

miketheDIYman · 01-06-2015 10:44PM #1

Reroofed my large shed with metal tile-effect sheeting only to find that in frosty weather condensation forms on inside and drips down on tools and other contents.
Looking for a remedy that doesn't cost too much - could bring in spray foam ( closed cell )
people but a bit costly and job a bit small for these companies. Have seen a DIY spray foam
on line but you need to keep both cylinders of 2 part mix at warm temperature for good mix.
Wondering if anyone has tackled this problem with any success especially with loose insulation
that could be packed between rafters !

Sleveile · 02-06-2015 01:33AM

Have the same problem myself with a self assembled metal shed that I put up last summer, its only a 10ft x 12ft. Had to empty it out for the winter because everything was getting destroyed with the condensation. Didn't put and membrane down when I was putting in the foundation, should have put only found out afterwards. Had 2 choices, either raise up the shed onto wood and allow it to breathe that way, not an option for me. Instead I've put approx 8 ventilation grills ( with more to be installed) drilled with a hole saw and then cut out the rest with a grinder, also sealed the floor with a concrete sealer. So far so good but wont really know until later on in the year.

Hope this helps.

newmug · 02-06-2015 01:45AM

Did neither of yiz put felt under your sheeting?????

Cheapest way out of this: Sheets off, chicken-wire on, felt on, sheets back on.

gutteruu · 02-06-2015 09:56AM

newmug wrote: »

Did neither of yiz put felt under your sheeting?????

Cheapest way out of this: Sheets off, chicken-wire on, felt on, sheets back on.

I used "Alububble" under my metal roof last year and its brilliant. About 70 quid did 6x4m and it acts as insulation also.

iano.p · 02-06-2015 10:31AM

newmug wrote:

Cheapest way out of this: Sheets off, chicken-wire on, felt on, sheets back on.

This is the best way to go. It's not that hard of a job but well worth it.

glineli · 02-06-2015 10:37AM

Sleveile wrote: »

Have the same problem myself with a self assembled metal shed that I put up last summer, its only a 10ft x 12ft. Had to empty it out for the winter because everything was getting destroyed with the condensation. Didn't put and membrane down when I was putting in the foundation, should have put only found out afterwards. Had 2 choices, either raise up the shed onto wood and allow it to breathe that way, not an option for me. Instead I've put approx 8 ventilation grills ( with more to be installed) drilled with a hole saw and then cut out the rest with a grinder, also sealed the floor with a concrete sealer. So far so good but wont really know until later on in the year.

Hope this helps.

What concrete sealer did you use?

Sleveile · 02-06-2015 05:46PM

glineli wrote: »

What concrete sealer did you use?

Ever Build Water Seal. So far so good.

Let the floor dry, gave it a good sweep and literally poured in on and followed around with a paint brush.Gave it 2 coats, just to be sure.

metal roof shed condensation problem

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