Protecting exterior plywood from hot sun.
Plywood cracks because:
1. It is multiple layers of wood that expand and contract at different rates.
2. The primer might not have been as good a quality as the paint - not flexible enough. Lots of people make this mistake - cut a corner on the primer and an expensive topcoat.
I would prime and paint again with a top quality 100% Acrylic primer and paint.
Paint it a lighter color (or white) if it isn't already - that will help.
If you really want something that lasts in a hot climate - look into having the house stuccoed. Stucco is very common in hot climates because it can stand the temperatures better than any type of wood.
In my opinion - that would be your best bet.
I've thought about stucco (probably should have done that in the first place) but now that I have the plywood and batten look I'd like to keep it that way. What about using stucco to fill the cracks but not using the chicken wire backing? Would that work?
You could scrape it all off - reprime and repaint - lots of work though.
Elastomerics were not designed for wood - just masonry. They won't adhere to wood very well - and with wood holding moisture like it does - even in the desert - that can give you problems.
I personally would go for stucco - long term it is going to be the best solution - long lasting - easy to paint - easy to maintain.
- 15 Old House Features We Shouldn't Abandon
- 17 Tiny Bathrooms We Love
- 20 Insanely Easy 60-Minute Home Improvements
- 70 Gardening Tricks and Ideas for Beginners
- 16 Inventive Beds You Can Make Yourself
- Capitalize on Your Attic: 10 Inspirations
- 15 Once-Popular Items Now Vanishing
- 159 Smart Storage Ideas for the Whole House
- 30 Things Every Adult Should Know How to Do
- 16 New Ways to Store Kitchen Necessities
- 12 Garden Sheds You Could Live (or Work) In
- Design a Rustic Bathroom: 10 Inspirations
- 7 Easy Budget-Friendly Backyard Makeovers
- 283 Great DIY Project Ideas
- Picture-Perfect Patios: 10 Outdoor Spaces to Love
- 10 Clever Uses for Space Under Stairs
- 17 Backsplashes for a Unique Kitchen
- Assembly Required: 15 DIY Kit Homes
- 16 Ways to Use Salvaged Wood in Your Home
- 108 Easy Outdoor Living Ideas
- The Right Path: 15 Wonderful Walkway Designs
- Decked Out: 12 Innovative Outdoor Living Designs
- 14 Room Dividers to Organize Your Space
- 15 Eye-Catching Options for Your Front Door
- 15 Unexpected DIY Flooring Alternatives
- 8 (Truly) Unexpected Storage Spots
- 12 Celebrities' Cool Pools
- 1 Dozen Ways to Maximize a Small Yard
- 9 Easy-to-Make Garden Luminaries
- Colorful Kitchens: 10 Bright & Bold Designs