Guest User
4/29/2003
I am purchasing an older home with a metal roof that's in the middle of it's useful life. It was never painted and the metal shows signs of discoloration. I can' tell exactly the type of metal or it's coatings but it is regular corrugated like that of the side of a industrial building (nothing fancy). I want to improve the looks and prolong its life. I am looking to paint the roof and have the following questions: 1. How should I clean the roof (soap/water scrubbing enough)? 2. How should the screws and minor holes be sealed (can they be caulked)? 3. Should it be primed and with what? 4. What type of paint should be used (100% acrylic based enough)? 5. How should it be applied (sprayed)? Thank you!!
Todd Miller
Classic Products, Inc.
4/29/2003
Good questions, Chad. Here are my suggestions: 1) Clean it by light scrubbing with a solution of detergent (such as Tide) TriSodium Phosphate (TSP such as Soilax) and warm water. Rinse thoroughly. 2) For small repairs, use a high quality butyl rubber caulk. 3) Go to a paint store and ask what paint system they recommend for things like this. Go to a quality store such as Sherwin Williams. Definitely use a primer. Sherwin Williams has a good one called Pro Cryl. 4) In most cases, they will be suggesting an acrylic latex. If you wnat to go to something better, most metal roofing manufacturers could help you obtain air-dry Kynar paint. However, hold onto your hat, extpect to pay in excess of $200 per gallon for it. 5) Spray application would probably be best in order to cover the corrugations. Good luck. All Best.
Guest User
4/26/2004
I recently purchased a home and have a metal roof that is in need of painting. The paint is chipping in a few places and there are a few superficial rust spots but most of the paint is still attached. How much preparation work should be done...do I need to strip all of the current paint even if it is still in good shape? Should a primer be applied and if so what would you recommend. What type of paint should I use? The roof is not visible from the ground so the paint is not decorative. Thank you, Chad
Guest User
4/26/2004
Generally, I worry a bit if the old paint is chipping. However, if adhesion of the remaining paint seems good, you can clean the roof well, apply a primer, allow to dry, and a quality top coat. The major quality paint companies will have systems they suggest for this application. Sherwin Williams has a primer called ProCryl which I have been told works well.
Guest User
5/7/2004
Two types of paint have been suggested by different contractors. Priming with one coat Seal-Kreat and spot prime with Rust-Oleum. Top coat Kelly-Moore 5780 DTM Gloss Enamel or Galvinoleum 3202 Clear Blue undercoat.Rustoleum Sherwin Williams DTM Acrylic for top coat. The house has a large roof and is in the hot sun most of the summer. The roof is 20yrs old and in very good condition. Thank you for your help. Patrick
Todd Miller
Classic Products, Inc.
5/7/2004
Patrick, I am sorry but I really cannot help you with this. I could talk (or write) all day about various coatings and finishes on new metal roofing but I just do not have much experience with refinishing. I would suggest addressing your question to someone in the paint and coatings industry. I am sorry.
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