HomeMy WebLinkAboutFire Resistive Construction EmailDavid Bartholomew
From: David Bartholomew
Sent: Wednesday, November 21, 2012 9:23 AM
To: Ron Biggers
Cc: Peter Stewart; Gary Tillotson; Andy Schwaller; Jim Wilson; Matt Provost
Subject: RE: 382 Meadow Wood Rd, Fire resistive construction
Ron,
We have just received the revised plans specifying the required two (2) hour house/garage separation wall and the one
(1) hour floor/ceiling assembly. The two (2) hour fire rated wall assembly was obtained from the Gypsum Association
Fire Resistive Design Manual, GA -600-2012, GA File No. WP 4230, Fire Test ITS J20-06170.3, 12-00. The one (1) hour fire
rated floor/ceiling assembly was obtained from the 2009 International Residential Code (IRC) as prescribed in Section
R302.3 in accordance with ASTM E 119 or UL 263.
The revised plans and fire resistive assemblies have been reviewed and approved for issuance. Any deviations from
these approved plans require re -submittal and approval. Garfield County will perform the required inspections to verify
correct installation of the assemblies, as scheduled during the construction process. Thank you for your time in this
concern, and please feel free to contact us with any questions or concerns.
Best Regards,
David
David Bartholomew, Plans Examiner
Garfield County Building & Planning
108 8th Street, Suite 401
Glenwood Springs, CO 81601
Office: 970-945-8212
From: Ron Biggers [mailto:ron,bi•gers{acogs.us]
Sent: Thursday, November 08, 2012 2:24 PM
To: Peter Stewart
Cc: David Bartholomew; Andy Schwaller; Gary Tillotson
Subject: 382 Meadow Wood Rd, Fire resistive construction
Peter,
Below are the Glenwood Springs Fire Department additional fire resistant construction requirements for the 6,232
square foot home (includes garage) you are building at 382 Meadow Wood Road, Glenwood Springs, Colorado. After you
review these requirements, if you decide to install an approved residential fire sprinkler system in the home, they shall
be eliminated.
• The wall between the garage and the living space shall be a two-hour rated fire wall. This wall shall be
constructed to 2009 IBC standards for a two-hour fire separation wall. It shall also be a UL Listed assembly.
• The ceiling/floor assembly between the basement and main living level shall be a one-hour fire resistive UL
listed ceiling/floor assembly. The code requirements for this fire separation can come from either the 2009 IRC
or the 2009 IBC. This assembly shall also be UL Listed for this application.
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When you and your architect have selected the UL Listed code compliant assemblies that meet the above requirements
, you will need to submit them to the Garfield County Building Department staff for their review and approval.
The fire resistant floor/ceiling assembly is required because of a reduction in the reliable fire flow water supply that the
Sunlight View II subdivision water system can provide.
If you have questions on the reasons for these requirements please contact me.
Ron Biggers
Deputy Fire Marshal
Glenwood Springs Fire Department
Fire Sprinklers Save Lives !!!
970-384-6433
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WALLS AND INTERIOR PARTITIONS, WOOD FRAMED
GA FILE NO. WP 4136
GENERIC
GYPSUM WALLBOARD, WOOD STUDS
Base layer 5/B" type X gypsum wallboard or veneer base applied parallel or at right angles
to each side of 2 x 4 wood studs 16" o.c. with 11/4" Type W drywall screws 12" o.c. Face
layer $Is" type X gypsum wallboard or veneer base applied parallel or at right angles to
each side with 17I8" Type W drywall screws 12" o.c. and offset 6" from screws in base
layer.
Joints staggered 16" each layer and side. (LOAD-BEARING)
2 HOUR
FIRE
40 to 44 STC
SOUND
Thickness: 61/8'
Approx. Weight: 12 psf
Fire Test: SWRI 01-5920-614, 12-5-94
Sound Test: See WP 4135
(NGC 2363, 4-1-70)
GA FILE NO. WP 4230
GENERIC
GYPSUM WALLBOARD, WOOD STUDS,
MINERAL FIBER INSULATION
Base layer 5/8" type X gypsum wallboard applied at right angles to each side of 2 x 6 wood
studs 24" o.c. with 21/4" Type S or W drywall screws 24" o.c. Face layer $Is" type X
gypsum wallboard applied at right angles to each side with 21/4" Type S drywall screws
8" a.c. 51/2" mineral fiber insulation, nominal 3 pcf, friction fit in stud space.
Joints staggered 24" each layer and side.
Tested at 5,506 lbs per stud or 100 percent of design load. (LOAD-BEARING)
2 HOUR
FIRE
Thickness: 8"
Approx. Weight: 13 psf
Fire Test: ITS J20-06170.3, 12-00
88 GA -600-2012 FIRE RESISTANCE DESIGN MANUAL
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