Loading...
HomeMy WebLinkAboutCorrections and Condition of PermitGuffield Coulnty Community Development Department 10t26t2023 Owner: Free Up Storage 1440 Brickyard Road Unit 4 Golden, CO 80403 Architect: Asher Architects + Engineers 512 5th Street Berthoud, CO 80513 Contractor: Spartan Construction Management 17301W Colfax Avenue Golden, CO 80401 Re: Corrections and Conditions of Approval JobAddress: 357 S. 16th Street, S¡lt, CO BLCO-10-23-8371 Building L Dear Asher Architects, The County Building Department has performed the review on the building permit application and plans for the new building proposed at the above address. There are items that need to be addressed prior to considering issuance of the building permit and items that can be addressed after the issuance of the building permit. Please provide a response letter addressing each item listed in the "ltems to address prior to issuing a building permit". Response not required for the "Conditions to be addressed during construction" but please address if clarification is needed. Please provide 2 complete sets of corrected sheets, with clouded areas reflecting changes, for the resubmittal. 108 Eighth Street, Suite 401 Glenwood Springs, Colorado 81601 (970)e4s-8212 Corrections to address prior to issuins a buildins permit: 1 The insulation details delineated on the plans do not appear to match the U-Values indicated in the COMcheck report submitted or the R-Values on the Cover Sheet 0.0. The "lnsulation Requirements" on sheet 0.0 indicates "Actual R-Value to match COMcheck report. The COMcheck Report was not produced using R-Values. lf using the U-value method, please submit the calculations and u-values for each component in each assembly. See the attached Commentary for that section of the Energy Code for reference. Please provide cross sections of the wall assembly and roof assembly detailing exactly how it is constructed. lf using the R-Value method. Please provide cross sections of the wall assembly and roof assembly detailing exactly how it is constructed. The roof will require R-5 thermal blocks if using the R-Value method. 2 S0.01 - The Design Criteria is indicating a 35psf roof snow load. The minimum design criteria in Garfield County is 40psf. Please address accordingly. 3 The foundation design does not appear to follow the recommendations in the Soil Report that was submitted with the permit. The report recommends helical piers but gives recommendations for Shallow Foundations in 8.2.¡ Please have the structural engineer reference the specific soils report on the drawings.. The Geotech Report recommends 400psf and 300psf for gravity loads and lateral loads respectively. The Structural notes indicate 1500psf and 2000psf respectivelyo The Geotech Report indicates separating the slab from the foundations, columns, etc. The details on the plans do not indicate separation.. There are no footings indicated for the interior bearing walls. 4 When more than one exit is required from a building at least (2) accessible means of egress are required. The main entrance qualifies as one. Please provide an additional accessible means of egress from the building. (lBC 1009) 5 The exterior exit doors are to have access to a public way or to a "Safe Dispersal Area" that is 50'minimum from the building. Please indicate on the site plan how compliance is obtained. (lBC 1028.5) 6 There is always a question regarding hazardous material storage in this type of facility. Typically, in storage facilities the leases will cover hazardous material storage. Would you please provide a statement or a sample lease agreement for the County's file. (lBC 414) 7 After speaking with the Fire Marshal, a Knox Box is to be installed at the entrance gate prior to issuance of the building permits. I Please indicate on the plans the termination location for the condensate lines from the fan coil units. I The emergency lighting is to illuminate the isles/corridors to one foot candle. The location of the emergency lighting is at the exterior exit doors. The emergency light fixture specified will illuminate to 24'. Please add interior emergency light fixtures to cover all the interior hallways. (lBC 1008.3) 108 Eighth Street, Suite 401 Glenwood Springs, Colorado 81601 (e70)94s-82r2 a a Conditions to be addressed durinq construction: The approved plans are to be on-site for inspections. Sanitary facilities are required to be provided for workers. A list of required inspections will be attached to the plans. The State is to permit and approve the electrical work. https://www.colorado.oov/pacific/dora/DPO Electrical Plumbino Permits Underground utility locates is the responsibility of the owner or contractor. 811 is the Colorado Utility Locate Hot Line. Drainage across property lines shall not exceed that which existed prior to grading. Excess or conCentrated drainage shall be contained on site or directed to an approved drainage facility. Erosion of the ground in the area of discharge shall be prevented by installation of non-erosive down drains or other devices. All backflow preventers are required to be tested and certified by a licensed backflow specialist after installation and prior to issuance of the Certificate of Occupancy. Separate Sign Permits are required for any external signs. Please contact the County Planner for the apPlication. Electrical Code compliance will be determined based on field inspections performed by the State Electrical lnspector, (303) 869-3458. Please have the inspector sign the building card or provide written documentation of the inspections. The Electrical Code requires a separate Electrical Permit for low voltage fire alarms that has an alarm panel and send a notification to the Fire District when under alarm. A Rough-ln inspection with the State Electrical lnspector is required (303) 869-3458. Please have the inspector sign the building card or provide written documentation of the inspection. The fire sprinkler and alarm are required to be inspected and approved by the Local Fire Protection District. Please provide shop drawings to the Fire District for review and schedule the inspections accordingly. Please have the Fire Marshal sign the inspection card when the rough inspection is approved and when the final inspection is approved. Any water supply that feeds a fire suppression system is to be inspected by the Fire Marshal for that Fire District prior to backfilling. Please provide special inspections reports to the Building Department as specified within the General Notes of the structural drawings. Geotechnical observation is required when the excavation is complete and written verification be supplied at footing inspection, 300psf/400psf. Combustible material is limited in Type I and Type ll Construction. See IBC 603 for allowed combustible materials. Safety glazing is not designated on the plans. Safety glazing will be checked during the framing and final inspection. (lBC 2406.4) 108 Eighth Street, Suite 401 Glenwood Springs, Colorado 81601 (970)e4s-82t2 Any membrane and through penetrations of the fire resistive construction will be required to be fire-stopped with listed fire stopping assemblies. The contractor is to provide a cut sheet for the assemblies at the framing inspection. (lBC 713) lf the fire sprinkler system requires a fire pump. Then the Utility Room that houses the pump will be required to be one-hour construction. (lBC Table 508.2.5) All accessible door hardware shall have a shape that is easy to grip, including pocket and sliding doors. (ANSI A117.1 - 404.2.6) The 2018 IECC requires a Blower Door Test to verify air sealing. There has been a struggle to comply when garage doors are involved. The County is willing to waive the air sealing requirements for the spaces that incorporate garage doors. The interior heated space within this building can be sealed and tested. This will be a requirement prior to approving the final inspection. Please be aware of the door maneuvering clearance to the restroom. The bollards outside the restroom should be 48" from the restroom door. Lavatory temperatures are not to exceed 1 10 degrees Sincerely, John Plano Building,Official cc 108 Eighth Street, Suite 401 Glenwood Springs, Colorado 81601 (e70)e4s-82r2 râble values refer to the U-values for the entire Ãsembly, including air films and finish materials' ì-ãwer U-values are better in that they indicate leOuceO heat flow, while higher R-values are better in iñat they indicate reduced resrsfance to heat flow. ðimiturly, lower C-factors and F-factors indicate ieOuce,i heat flow through basement walls and the edoes of slabs on grade, respectively'- öommentary Figure C402.1.4 provides an example of the U-factor method. Shown in the figure are the R- values for the cavity and framing. The U-factor is 1/R- value. To calculate the U-factor for the combination of the cavity and framing combined, calculate the U-factor of the aôsembly based on the framing composing 15 oercent of the assembly. An assembly with a U-factor äoual to or less than that calculated in Table C4Q2.1.4 is oermitted in this method. The estimated framing is 15 þercent of the wall area. The U-value may be calculated as follows: COMMERCIAL ENERGY EFFICIENGY Section C402.1 also requires compliance with Section C402.2. Not every subsection of Section C402.2 directly addresses the U-factor approach to envelope compliance. rt_ 0.15+1-0.15 = o.0gg- 5.01 14.54 CAVlTY FRAMING B-value Æ'value Outside air film 0.17 0.17 7/u-inch stucco 0.18 0.18 Building paper 0.06 0.06 Cavity insulation 13.00 Framing 3.47 5/.-inch gypsum board 0.45 0.45 lnside air film 0.68 0.68 Sum of thermal resistance '14.54 5.01 For Sl: 1 inch = 25.4 mm. Commenta EXAMPLE OF ry Figure C402.1.4 U-FACTOR METHOD CLERESTORY WINDOWS ARE INCLUDED WITH VERTICAL GLAZING, NOT SKYLIGHTS M TH NOT PART INCLUDE PARAPET OF THE AREA WALL AREA THE WINDOW AREA IS THE ROUGH FRAME OPËNING, INCLUDING lHE WINDOW FRAME GROSSWALLAREA MEASURED FROM BOTTOM FLOOR TO TOP OF ROOF SURFACE AND INCLUDES THE WALL NEXTTOTHE PLENUM Commentary Figure C402.1.3 HOW TO MEASURE SURFACE AREAS (SEE COMMENTARY FIGURE C4O2.1l (Courtesy of U.S. Department of Energy, Office of Building Technology State and Commun¡ty Programs, www.energycodes.gov) THE HORIZONTAL SLOPE PLENUM MEASURE THIS ROOF AREA HORIZONTALLY VENTILATED ATTIC TO THE OF THE PLËNUM EXTERIOR FLOORAREA IS MEASURED FROM THE EXTERIOR FACE OF THE OUTSIDE WALLS VENTILATED CRAWL SPACE OPAOUE DOORAREA IS THE ROUGH OPENING, INCLUDINGTHE FRAME 201I IECCG'CODE and COMMENTARY c4-7 COMMERCIAL ENERGY EFFICIENCY C402,1.2 Equipment buildings. Buildings that comply with the following itratl be exempt from the builcling thermal envelope provisions ofthis code: 1. Are separate buildings with floor area not more than 500 square feet (50 m2). 2. Are intended to house electronic equipment with installed equipment power totaling not less than 7 watts per square foòt (75 Wm'?) and not intended for human occupancy. 3. Have a heating system capacity not greater than (17,000 Btu/hr) (5 kW) and a heating thermostat set- point that is restricted to not more than 50oF (10'C)' 4. Have an average wall and roof U-factor less than 0'200 in Climate Zones I through 5 and less than}'I2} in Cli' mate Zones 6 through 8. 5. Comply with the roof solar leflectance and thermal emittance provisions fot Climate Zone I' {.Section C402.1.2 is similar to Section C402-1.1 in that it allows buildings to be exempt from the stan- dard envelope provisions of the code, proÌided that they meet ihe f¡ve criteria found here. Equipment buiidings, shelters or sheds are installed to protect electronic equipment from the weather and primarily provide cool¡ng condit¡oning. Heating is installed for êmergency baókup operation and must be limited to 50'F (10'C) or less by a setpoint. Due to the high density of electronic equipment installed, heat is rarely needed. The heat generated by the equipment resuits in cooling being the key issue; therefore, pro- viding less insulation is actually desirable from an annual energy use standPoint. This exemption is limited to stand-alone-equipment buildings noi more than 500 square feet (50 m2) in area. Simplified insulation requirements that apply to an average of the roof and wall insulation are pro- vided. Ttris type of building is often made with 3 inches (76 mm) of concrete, internal foam insulation and a plywood interior with similar construction for roof and walls. To reduce insulation requirements, the ASHRAE 90.1 option may be pursued as the building would qualify as a semiheated^ space. At around 7 watts per square foot (75 Wm2) of equip- ment load, the heat loss is offset by the equipment load, with the proposed insulation resulting in very lit- tle heating load. It is important to note that this exemption applies only to the building thermal envelope provisions. Any HVAC, service water heating or lighting systems in such buildings would still be required to meet the pro- visions of the code. C402.1.3 Insulation component R-value'based method. Bwitcting thermal envelope opaque assemblies shall comply with the requirements of Sections C402.2 and C402.4 based on the climate zone specified in Chapter 3. For opaque por- tions of the buitding thermal envelope intended to comply on an insulation component R-value basis, the R-values for insu- lation shall be not less than that specified in Table C402.1.3' Commercial buildings or portions of commercial buildings enclosing Group R occupancies shall use the R-values fro¡¡ the"Group R" column of Table C402.1'3. Commercial build- ings or portions of commercial buildings enclosing occupan- cies other than Group R shall use the R-values from the "{¡ other" column of Table C402.1'.3. €.The code provides three methods to determine com- pliance of the building thermal envelope. This section ôutlines the compliance method based on the provi- sion of insulation with R-values not less than that specified in Table C402.1.3. The opaque portions of the envelope (walls, roofs, floors and opaque non- swinging doors) must comply with the requirements of Séction 402.2 and Table C402.1.3, while the fen- estration (windows, glazed wall systems and sky- lights) must comply with Table C402.4. Commercial OuitOings or portions of commercial buildings enclos- ing Group R occupancies must use the R-values from thé "Group R" column. Otherwise, the "All other" col- umn must be used for the R-values to determine the correct building thermal envelope. Group R is defined in Chapter 2 ICEI to include the use of a building or structure, or á portion thereof, including Groups R-1, R-2. R-3 and R-4 as defined in the lnternational auiiaing code@ (lBc@). Some of the envelope requirements are based on surface area. For instance, the glazing area is limited to a percentage of the gross exterior wall area above grade, and the skylight area is limited to a percentage óf the gross roof area. The rules for measuring sur- face aieas are summarized in Commentary Figure C4021.3. See Section C402.4 for additional informa- tion regardi ng fenestration. C402,1.4 Assembly U-factoro C-factor or F'factor'based method. Building thermal envelope opaque assemblies shall meet the requirements of Sections C402.2 and C402.4 based on the climáte zone specified in Chapter 3. Building thermal envelope opaque assemblies intended to comply on an assem- bly U-, C- or F-factor basis shall have a U-, C- ot F-factor not grêater than that specified in Table C402.1'4' Commercial buildings or portions of commercial buildings enclosing Group R occupancies shall use the U-, C- or F-factor from the "Group R" column of Table C402.1.4. Commercial buildings or portions of commercial buildings enclosing occupancies othèr than Group R shall use the IJ-, C- ot F-factor from the "All other" column of Table C402.1.4 i. This section allows an assembly with a U-factor, C-fac- tor or F{actor equal to or less than that specified in Table C402.1.4 to be used in the design and construc- tion instead of the R-values in Table C402.1.3. Com- mercial buildings or portions of commercial buildings containing a Group R occupancy must use the U-tfac' tor, C-factor or F-factor from the "Group R"-column' "Group R" is defined in Chapter 2 [CE] and includes the use of a building or structure, or a portion thereof, including Groups R-1, R-2, R-3 and R-4 as defined in the lBC. This will ensure the correct building thermal envelope will be determined. Whereas the R-value table values refer to the R-val- ues of the insulation materials alone, the U-factor c4.6 2018 IECC@CODE ANd COMMENTARY .t