Moderator: eaglesdare
printer wrote:I am using 1 1/2" blue insulation foam. I plan to prime it with a paint that is good for all construction materials including metal. I will clean the galvanized sheet first with alcohol.
The angled galvanized sheet is to bond to the foam with Gorilla Glue. The inside of the wall is to be captured by the 1"x1 1/2" spruce. After primed the canvas is to be glued on using Titebond II.
Do I need to saturate the canvas all the way through with the glue or just glue it on and after dry soak paint into the canvas? Was thinking of slightly watered primer (depending on if it soaks in well) then a top coat of paint.
I plan on doing a test run on some material but thought I would ask first to gather the wealth of wisdom from others.
While I am here, might as well ask, I need to bond the insulation sheets together. Do I use Gorilla glue or Great Stuff, foaming both surfaces and once it bubbles up squeeze them together?
Pmullen503 wrote:I agree with everything said so far.
But I would bring the canvas down from the wall over your drip edge in one piece to avoid a joint between the wall and drip edge so water won't sit in that joint. You could seal that joint with something but somewhere it will eventually fail without scrupulous maintenance. And you won't notice rot until it's well underway.
I would seal that drip edge and it's backer with the mix or penetrating epoxy before and after installation for extra protection.
Otherwise, your plan looks sound to me.
Pmullen503 wrote:I think any bowing would be slight. A lot of people, myself included, cover the insides with canvas before assembly. I noticed some slight bowing but nothing that caused assembly problems. That's probably a worst case situation: canvas shrunk on one side only.
printer wrote: ...
Did you wash the fabric first?
Also for anyone, I bought some good canvas but was told elsewhere I should not have as painter canvas soaks up the glue and paint but the better canvas repels water and does not wet through.
printer wrote: ... I figured spending a little more on canvas will give a better appearance and use less glue and paint.
Pmullen503 wrote:I used mostly Duck canvas and some drop cloth to do the inside of a door. The Duck canvas gives a much better appearance.
I didn't prewash either and they worked fine. Some think it's best to prewash/preshrink the canvas. Could be, but no prewashing seems to work too.
Users browsing this forum: No registered users and 12 guests