PROJECT: North & West Portico Restoration
REPORT NO. 6
Mercer County Courthouse
Mercer, Pennsylvania
DATE June 29, 1999 TIME 10:00 a.m.
PRESENT AT MEETING Kevin Klosky - Keystone Waterproofing
Dave Sebek
- Keystone Waterproofing
Silvio Diliscia
- Keystone Waterproofing
Tom Auel - Arcon Specialties
Doug Wallace
- Wallace Builders
Lou DeJulia
- Mercer County Maintenance
Bob Mastriana - 4M Company
NOTES
-
Approval of color PSS 58 Jahn Stone Restorer is 75 -80% of color. An additional gray color will be needed for foundation
basic color.
-
North portico will need 2 1/2 to 3 weeks for cutting, pointing and cleaning. 2 to 3 weeks additional is needed for patching. A total of 5 to 6 weeks is required prior to the plaster people repairing the north
portico ceiling.
-
Sealer must be applied as soon as possible after cleaning to reduce iron oxide from bleeding through again.
-
West portico stone is in extremely bad shape due to prior sandblasting. It's creating a difficulty to try to clean and patch
stone.
- Deck repair with waterproofing membrane will be done prior to cleaning and patching foundation base stones. This is due to moisture penetration through the deck.
ITEMS TO VERIFY
- Gray color of Jahn Stone Restorer
PROJECT: North & West
Portico Restoration
REPORT NO.
7
Mercer County Courthouse
Mercer,
Pennsylvania
DATE July 8, 1999 TIME 10:45 a.m.
PRESENT AT MEETING Kevin Klosky
- Keystone Waterproofing
Silvio
Diliscia - Keystone Waterproofing
Lou
DeJulia - Mercer County Maintenance
Bob Mastriana - 4M Company
NOTES
- The West portico stonework is extremely deteriorated.
- The amount of repair needed is beyond what was anticipated
and the spottiness of the stone cleaning is complicating the coloration of
the stone patching material. This is due to the sandblasting of the stone
veneer finish that was done in the early '70s.
- A needle hammer is being used to lightly remove dark stain
areas of the stone columns that did not come clean with the cleaning
solution. This allows for the weathered exterior shell to be opened up for
the iron oxide remover to penetrate and clean.
- Keystone is starting Monday to begin the stone patch with the dominant color PSS 58 that was previously approved.
ITEMS TO VERIFY
- The remaining color choice of the other patches to be done
where the stone is a different color.
- What stone cleaning technique should be used on the extreme iron oxide spots that aren't coming clean?
PROJECT: North & West
Portico Restoration
REPORT
NO. 8
Mercer County Courthouse
Mercer, Pennsylvania
DATE July 13,1999 TIME 10:00 a.m.
PRESENT AT MEETING Dick Stevenson -
Chairman of
Commissioners (Present prior to meeting to
inspect progress of work)
Jerry
Johnson - Former Commissioner and President of Historical Society
Dave
Sebek - Keystone Waterproofing
Kevin
Klosky - Keystone Waterproofing
Silvio
Diliscia - Keystone Waterproofing
John
Thiry - Keystone Waterproofing
Doug
Wallace - Wallace Builders
Lou
DeJulia - Mercer County Maintenance
Bob
Mastriana - 4M Company
NOTES
- Keystone is still having difficulty cleaning the extremely
deteriorated areas of the West portico columns.
- Keystone still wants to try various other chemical stone
cleaning processes and combinations prior to any abrasive cleaning
techniques. John mentioned that the cost of the John
material for the stone repair for 1/2" thick (12 s.f.) or 3/4"
thick (8 s.f.) is approximately $200.00 per bucket of which 30 buckets were
figured.
- Additional cleaning samples were looked at after an
extended dwell time but unfortunately the columns still show spotty
staining.
- A roof inspection was made with John, Lou, Doug and Bob on
roof gutters to determine if any leaks occurred in the built-in aluminum
gutter and coping at the North East portico. The stone cornice underneath
the gutter shows excessive deterioration and staining. Lou will have a
roofer seal joints. Scuppers need to be kept clean. The built-in gutter
coping needs a drip edge to throw water off from the face of the stone. Lou
will look into this possibility with the roofer.
- It was decided to try to do a test Wednesday to pressure
clean the columns with glass bead granules the size between flour and salt
granules.
- With the scaffolding erected we were able to determine
additional pigeon roosting areas that need to be addressed. Wallace was
requested to get Easily and Rivers to price out the sloped plaster cap at
the inside of the North portico beams for additional pigeon control and
also the decorative molds at the center of the capitals.
- Wallace to also price out the white aluminum sloped window
sill caps and the door head caps at the interior of the North portico to
eliminate additional pigeon roosting areas.
- Victorian Week is Friday, Saturday and Sunday July 23rd -July 25th. the construction fence needs to be relocated temporarily behind the sidewalks to allow for more booth spaces. Jerry will coordinate this with Lou and Doug.
ITEMS TO VERIFY
- Dave Sebek from Keystone Waterproofing called to reschedule the meeting from Thursday, July 15th at 9:00 a.m. to Tuesday, July 20th at 11:00 a.m. This will give them more time to try other techniques and approaches.
