HomeMy WebLinkAboutLibrary Board Minutes 08.23.1988 Minutes of the
Laurel Public Library Board of Trustees
Regular meeting -Aug. 23,1988
no quorum
Discussion was held with Jim Flisrand, Campbell Calvert,
Adele Zink, and Peggy Arnold on the following items:
water and sewer service lines;curb,gutter, and sidewalk;
ice barrier on the roof; and parking lot drainage.
The meeting was rescheduled for Friday 9 a.m.
Regular meeting -Aug. 26,1988
Attending - Campbell Calvert(presiding), Bonnie Preikszas, Adele
Zink, Jim Flisrand, and Peggy Arnold
Building Project- Jim Flisrand presented and reviewed a letter
from CBG Ahitect, a letter from John Flanagan(Langlas
Construction), and the United Building Codes 1985 concerning
shingle application and ice barriers. A motion was made,
seconded, and passed to accept the roof construction and to
accept the letters of explanation from CBG Architects and
Langlas and Assoc., Inc. concerning the adequacy of the roofing.
A motion was passed to use vinyl for the bathrooms. A motion was
passed to carpet the entryways with the same carpet as the rest
of the building and to rent entry rugs from a cleaning service
for the doorways.
Next meeting Sept. 27 at 9a.m.
Res tfully submitted,
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cbg architects • 1616 broadwater avenue
billings • montana • 59102 (406) 656.5862
August 8, 1988
Mr. Jim Flisrand
Laurel City Engineer
115 West First
Laurel, Montana 59044
RE: NEW LAUREL PUBLIC LIBRARY
DeOr Jim:
Attached is a copy of the correspondence from Langlas Construction which
summarizes the method of installing the protection required to prevent damage
caused by ice dams on the shingles during the winter season.
In our experience with construction at the meadows at Big Sky, the mountains
near Cooke City, and in the Cody area, roofs with R -38 insulation, whether
ventilated or packed solid, do not experience the ice dam phenomenon encountered
on the older roofs which have little or no insulation. The snow doesn't melt
• and run onto a cola surface at the overhang. Therefore, the ice dam condition
does not occur. In fact, in the Cody area, the building official has waived
the requirement for ice dam protection as spelled out in the Uniform Building
Code when roofs are constructed and insulated like the roof on the Laurel
Library project.
I personally feel the method used by the roofing subcontractor, in fact, meets
the intent of the code and should be considered an adequate alternative method
for that which is required in the UBC. In keeping with the provisions of the
UBC, which allows the building official to approve alternative methods, I would
suggest that the method used be accepted. I, as an architect, would have no
trouble accepting his method of installation. The only objection I have is
that the roofer used this method of installation without prior approval or
consideration.
Given that set of circumstances, I feel that it is not out of line to have the
• roofing contractor submit a letter to the effect that should the building, or
specifically the roof, experience an ice dam problem which can be related to
his method of contruction, he will at his own expense and time take any corrective
• action and make any necessary repairs in order to resolve the problem. I would
have the roofer prepare a document stating the above conditions and sign it.
Copies of this document should be retained by the roofer, the City of Laurel, and
our office for the life of the shingles - -which should be approximately 15 to 25
years. I would keep the document short, simple, and to the point.
•
charles b. goldy, jr.
architect a.i.a.
Mr. Jim Flisrand
Page 2
August 8, 1988
RE: Laurel Public Library
All warranties, whether implied or stated, and all methods of installation are
only as good as the person's integrity and craftsmanship. I certainly would not
recommend removing and redoing what is presently installed. I have found that
one can have problems even with the best of materials installed according to
code and the manufacturer's recommendations given the right, or the wrong, set of
conditions.
Should you have any questions or suggestion, please feel free to contact me to
discuss them.
Thank you for your time and attention to this matter.
Sincerely,
cbg architects
ett#4460 gC
Charles B. Goldy, Jr.
cbg;jg
Enclosure
kinglas & loc•
7944 Molt Road
Billings, MT 59106
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0 which comply with U.B.C. Standard No. 32 -7 and roofs of cedar or redwood shakes and No. I w
shingles constructed in accordance with Section 3204 (e), Special Purpose Roofs. - P e
4 Unless otherwise required because of location as specified in Parts IV and V of this code, Group M.
Division I roof coverings shall consist of not less than one layer of cap sheet, or built -up roofing ru
consisting of two layers of felt and a surfacing material as specified in Section 3204 (d) I .
C I
TABLE NO. 32-B-1—SHINGLE APPLICATION
ASPHALT SHINGLES
NOT PERMITTED BELOW 2:12
ROOF SLOPE 2:12 to Nos thin 4:12 1 4:12 and own
DECK REQUIREMENT Asphalt shingles shall be fastened to solidly sheathed roofs.
Sheathing shall conform to Sections 2516 (i) and 2517 (h) 7.
UNDERLAYMENT Asphalt strip shingles may be installed on slopes as low One layer nonperforated Type 15 felt lapped 2 inches
Temperate climate as 2 inches in 12 inches, provided the shingles are horizontally and 4 inches vertically to shed water.
approved self - sealing or are hand - sealed and are in-
stalled with an underlayment consisting of two layers of
nonperforated Type 15 felt applied shingle fashion.
Starting with an I8- inch -wide sheet and a 36 -inch -wide C
2
sheet over it at the eaves, each subsequent sheet shall be C
lapped 19 inches horizontally. 2
•
Severe climate: Same as for temperate climate, and additionally the two Same as for temperate climate, except that one layer No. co
In areas subject to layers shall be solid cemented together with approved 40 coated roofing or coated glass base sheet shall be S
wind -driven snow or cementing material between the plies extending from applied from the eaves to a line 12 inches inside the p
roof ice buildup. the eave up the roof to a line 24 inches inside the exterior exterior wall line with all laps cemented together. 2
wall line of the building. 0
A
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3203 UNIFORM BUILDING CODE
Asphalt shall not be heated to a temperature above 500°F. for a high -melt type
nor 400 for low -melt types. Coal tar pitch shall not be heated to a temperature
above 400°F. At no time shall the asphalt be heated to a temperature which will
exceed its flash point at the kettle. ( )
Built -up roofing shall be applied by starting at the low spots and working
toward the ridges, with felts and cap sheets applied in shingle fashion to drain
water. Felts and cap sheets shall be applied in solid uniform moppings of bitumen.
3. Shingle, shake and tile roofs. A. General. Installation shall be in accord-
ance with Table No. 32 -B. Underlayment, when required, shall be lapped hor-
izontally and vertically so as to shed water.
In areas subject to roof ice buildup, underlayment consisting of two layers of
Type 15 felt applied shingle fashion shall be installed and solid mopped together
with approved cementing material between the plies extending from the eave up
the roof to a point 24 inches inside the exterior wall line of the building.
EXCEPTIONS: 1. For wood shingle or wood shake roofs the underlayment shall
extend 36 inches inside the exterior wall line of the building.
2. When interlocking tiles are used, the underlayment may consist of one layer of
Type 40 or heavier asphalt- coated base sheet extending from the eave to a point 24
inches inside the exterior wall line of the building. When this method is used, all
horizontal and vertical seams of the base sheet shall be lapped 6 inches and be
continuously sealed with approved cementing material and shall be applied only
over solid sheathing.
""1
B. Asphalt shingles. Asphalt shingles shall comply with U.B.C. Standard No.
32 -3. Asphalt shingles shall be fastened according to manufacturer's instructions
to solidly sheathed roofs, but not less than four nails per each strip shingle not
more than nominal 36 inches wide and two nails per each individual shingle not
more than 18 inches wide shall be used.
Underlayment may be omitted over existing asphalt shingle roofs except where
the roof slope is less than 4 inches in 12 inches.
C. Slate shingles. Slate shingles shall comply with U.B.C. Standard No. 32 -10
and shall be installed in an approved manner.
D. Asbestos - cement shingles. Asbestos- cement shingles shall comply with
U.B.C. Standard No. 32 -9 and shall be installed in an approved manner.
E. Metal shingles. Metal shingles shall be applied in an approved manner.
F. Clay or concrete tile. Tile of clay or concrete shall comply with U.B.C.
Standard No. 32 -12 and shall be installed in accordance with Table No. 32 -B and
fastened with corrosion- resistant nails or wire.
Noninterlocking tiles with projecting anchor lugs at the bottom of the tiles shall
be held in position by means of 1 -inch by 2 -inch wood stripping nailed to the roof
sheathing over the underlayment.
Interlocking tiles with projecting anchor lugs may be installed over spaced
sheathing board, 1 -inch by 2 -inch wood stripping nailed to solid roof sheathing or
directly to solid roof sheathing, provided in all cases each tile is attached in
conformance with Table No. 32 -B.
542