ᐅ Garden Shed Construction – Primer Application

Created on: 11 Jul 2021 09:30
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Andre77
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Andre77
11 Jul 2021 09:30
Hey,

the seller of the garden shed gives the following advice:

“Tips for assembling your garden shed

The wall planks should be treated with a clear primer in the tongue and groove areas during assembly. Afterwards, the entire interior and exterior should be primed. Once the primed wood is dry (24-48 hours), the garden shed should be painted on the outside with a long-lasting, breathable wood stain or an opaque topcoat.”

Is there a specific reason why the tongue and groove areas need to be primed during assembly? Because of limited space behind the shed (neighbor boundary), the following steps might be somewhat difficult. I thought I could prime and paint everything before assembling.

Is this possible, or am I missing something?

Thanks!
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hanghaus2000
11 Jul 2021 09:59
Yes. Because the tongue and groove area cannot be painted after installation. However, you can of course treat the boards completely beforehand. But that requires much more work.
AxelH.11 Jul 2021 10:05
hanghaus2000 schrieb:

But of course, you can fully treat the boards beforehand. However, that involves a lot more work.

The effort is worthwhile, especially if you want to apply a tinted wood stain or an opaque wood preservative paint. Since individual boards expand and contract depending on the season and weather conditions, you will often see lighter areas in the tongue-and-groove joints if the coating is applied only after assembly. If the boards receive their final coating before assembly, this effect does not occur.
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Andre77
11 Jul 2021 10:14
@hanghaus2000

Precisely because after assembly the tongue and groove joint is no longer visible, everything should be prepared beforehand, not during the assembly. I thought it was more about wet-on-wet application, which is why I mentioned doing it during, not before or after. But apparently, as @AxelH. suggests, all boards should be fully prepared first and then assembled.

Have I understood that correctly, @AxelH.?
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Myrna_Loy
11 Jul 2021 10:50
Applying more than just a primer can cause the tongue and groove joints not to fit together properly. With a topcoat or glaze, it becomes even tighter. And if you paint all the boards only beforehand, you do not seal the grooves, which allows water to penetrate the joints more easily.
AxelH.11 Jul 2021 12:44
Andre77 schrieb:

But apparently, as @AxelH. suggests, prepare all the boards completely beforehand and then assemble everything.
Did I understand that correctly, @AxelH.?
Yes, absolutely correct, that’s what I meant and how I did it.