ᐅ Renovating a Terrace on a Garage Roof: Lightweight, Affordable, and Rodent-Free Solutions

Created on: 25 Dec 2025 23:15
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Sonja12345
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Sonja12345
25 Dec 2025 23:15
Hello,

we removed the old wooden deck and now I’m looking for a low-maintenance, affordable solution (preferably DIY). We previously had mouse nests underneath (which I never want again!). The construction height should ideally be 18cm (7 inches), and the whole setup shouldn’t be too heavy (on top of a garage ceiling). Currently, there is only a bare glued membrane on the concrete slab.

I would be very grateful for any expert tips.

Best regards, Sonja

Blick aus dem Innenraum auf eine verwitterte Terrasse mit Eimern, Besen und Geländer im Hintergrund

Terrasse aus Beton vor einer Holzhütte, Gartenwerkzeug und Baumstämme im Garten

Blick durch glaeserne Terrassentuer auf unfertige Außenfläche mit Kies und Baumaterialien
KlaRa27 Dec 2025 17:30
"Mouse-free" outdoor installation is only possible
a) through a composite construction (not feasible due to the existing roofing membrane), or
b) with raised supports (wood, plastic, or cement bags) combined with a tightly fitting wire or metal profile on the sides.

This already answers the question:
Sleeper beams (for example, resting on cement bags) with a wooden framework or WPC decking on top.
Special construction:
Loose-lay PVC tiles with side dovetail locking, e.g., GTI tiles from GERFLOR.

Best regards to all: KlaRa