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Metal to Wood11/28
I have a client who has asked me to apply sheet steel to wood on an exterior door. I was considering construction adhesive. Not sure that will work given the heat/cool cycle of an exterior surface. I would appreciate any feedback on any suggestions on gluing metal to wood for an exterior application.
Get a local metal shop to bend a larger shallow pan the size of the door, so that it can wrap around the edges of the door and be secured with fasteners.
Perhaps cut a small rabbit around the door and put a layer of 1/4" rubber between the wood and the door to give it some flex.
I think I would still glue the pan to the face of the door.
Sikaflex 1A. Comes in a caulk tube. Squirt, spread, then weigh down with sandbags. Zinc countertop guys use it.
We did a hotel a couple of years ago and we did a lot of steel panels that were Faux painted to look rusted and aged. Most of the work was inside, but they did have an outside roof top bar and we did these panels there as well. This has been up for only a year an a half, but it is totally outside.
Most of the panels are not directly in the weather, back bar and panels under the bar. But, these are exposed, no heat, hot summer, cold, snowy winters. It has only been a year and a half, two summers, two falls, one winter. Nothing has delaminated. We used contact adhesive and this was 18 gauge steel.
These panels we glued to plywood. Where it was possible, we put pan head screws on the panels. But, some of the panels were not able to be screwed.
I have glued a lot of steel to plywood with contact adhesive.
What Jared said. Sika or 3m 5200 will stick pretty much anything to pretty much anything.
Ever heard of coefficient of expansion? Steel expands a lot more than wood per degree of temperature change. If the sun hits the steel, you're going to get oil canning and other movement from season to season. I'd run away from the job!