What I am understanding is that Glenn's chart based on orientation is referring to "sunlight-induced fading" and mechanical failing due to heat (sun exposure). For example: cracks and flaking paint

So, in regards to both fading and mechanical changes I agree with Skip that other factors should be considered such as:

- Lightfast in pigments/colors/dyes

- Type of primer and paint (paint quality)

- Condition of the substrate prior to paint the mural

But even though you may take all these variables into consideration, that would certainly help, I find it would still be difficult to establish the real life span of a mural.

Kind regards,

Viviana Dominguez, Senior Conservator

Government Landing Page

Art Conservators Lab

2001 Biscayne Blvd # 2606

Miami. FL 33137

Studio Naples: 2220 J&C Blvd. ste. 6

Naples, FL 34109

Miami Office: (786) 973-8138
http://www.artconservatorslab.com

---------- Forwarded message ---------
From: Skip Dyrda <painterskip@gmail.com>
Date: Thu, Jul 22, 2021 at 3:20 PM
Subject: Re: New Guidelines on the Recommended Life of all types of "Murals"
To: Weiss, Glenn <WeissG@bbfl.us>
Cc: public_art_network@americansforthearts.simplelists.com <public_art_network@americansforthearts.simplelists.com>, Florida Association of Public Art Professionals <fapap@googlegroups.com>

I've been a muralist for about 25 years. And I have experience with many other forms of art....sculpture (metals and otherwise), photography, etc.

But mostly murals. And in my opinion, this chart is way too generalized.

I'm really not sure how you can predict the life span of a mural based solely on which direction it faces and it's substrate.

For example, I just saw a post on FB, just today, about a mural painted 27 years ago, in acrylics, and it looks great.

When I paint on stucco, I use a special paint that won't fade for close to 80 years. And yet there was a very large, and way too expensive, mural painted here in Sarasota about a year or so ago and the paint was running off the wall in less than a year, mostly because the artist didn't know what he was doing (my opinion).

Variables include, substrate, preparation and type of materials used to create the mural, IN ADDITION TO which direction it faces.

Even with sculpture, there are marble, stone, brass, bronze, aluminum, steel, stainless steel and on and on and not one reacts the same as the other and location plays a large part of the life span there.

So I'd suggest refining that list in a big way.....too vague

Skip Dyrda

www.skipdyrda.com

www.facebook.com/emurals/

On Thu, Jul 22, 2021 at 1:56 PM Weiss, Glenn <WeissG@bbfl.us> wrote:

PAN,

I am writing new mural program guidelines for south Florida. In my administrative work, I always establish life spans for public art. At the end of the contracted life span, the work can be removed, renewed or replaced. Usually, I am establishing the life span for the project as six months (temporary), 5 years, 15 years or permanent. In this case, I want to advise property owners and set a time when the City examines the work.

Do you think my life spans are typical for the various type of murals before they started to look weathered, dirty or generally dull?

Thanks. Glenn Weiss

Life of Mural

The applicant should declare the life span of the mural during which the mural will be maintained in excellent condition. All painted and printed mural should have UV protection. Unless agreed by the Art Advisory Board, the following life spans are established:

North Facing or Shaded Painted Wall: 20 Years
East, South and West Painted Wall or Roof: 10 Years
Painted or Stained Street or Drive: 2 Years
Painted or Stained Pedestrian Sidewalks or Plaza: 5 Years
Concrete skim coats and etching: Permanent
Glazed Colored Ceramic, Glass or Stone Mosaic: Permanent
Printed Mural on Ceramic: 20 Years
Printed Mural on Adhesive Vinyl, Aluminum Composite Material or similar: 7 Years
Digital Displays: Depending on Manufacturer’s Warranty
Digital Projections: Depending on Manufacturer’s Warranty

At the end of the declared lifespan, the property owner should be prepared to remove, renew or replace the mural.

Glenn
Weiss
Public Art Manager
City Manager's Office, Public Art Program
Mailing Address: P.O. Box 310 | Boynton Beach, FL 33425
Physical Address:
100 E. Ocean Ave.
|
Boynton Beach ,
Florida
33435
561-742-6026
|
561‑665‑0029
WeissG@bbfl.us
|
http://www.boynton-beach.org/
|
http://www.boyntonbeacharts.org/
Please be advised that Florida has a broad public records law and all correspondence to me via email may be subject to disclosure.Under Florida records law, email addresses are public records. Therefore, your e-mail communication and your e-mail address may be subject to public disclosure.

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