Why do roofs NOT leak?

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Handle9

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#3385111 17-Jun-2025 17:40

heavenlywild:

I just can't understand why we think putting nails into our roofs is a good idea? You can put in plugs and what not but under the hot sun it won't last 50 years, let alone 5!

Empirical evidence suggests otherwise.

Everything is a compromise between cost, performance, buildability, maintainability and repairability.

johno1234

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#3385142 17-Jun-2025 20:12

heavenlywild:

Thanks for your comments all.

I just can't understand why we think putting nails into our roofs is a good idea? You can put in plugs and what not but under the hot sun it won't last 50 years, let alone 5!

It’s easier for the water to just slide down the roof than to force its way into the nail hole.

gzt

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#3385150 17-Jun-2025 20:56

pdh: Just go and travel round the UK (or Holland or Dalmatia)...

Many of those places have a tradition of steep pitched roofs. NZ tends to be on the lower side compared to many European countries. That doesn't help. Catering for longer snow and ice seasons is one reason.

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