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i <br /> � <br /> i <br /> � <br /> � <br /> i <br /> � <br /> � � i <br /> , -�, , <br /> i .`�ier:]�*' I <br /> �- `� I <br /> Donald R. Westlin, Architect � � i <br /> January B, 1990 j <br /> Page Five �� <br /> �Six Poot, B-inch minim�on headroom clearbnce Por stairways should be � <br /> indicated on plans. Section 3306(p). Note that this is ,neasured i <br /> vertically from a plane tangent to the stairway tread nosing. <br /> 34 Handrails should have their ends returned or terminate in newel posts <br /> or safety terminals. Section 3306(�). <br /> 35. At least one handrail should extend at least 12 inches beyond the top <br /> and 23 inches beyond bottom risers. .ection 3306(,j). WAC 51-10. <br /> �Guardrails Por stairs, balconies, and landings should conPorm with <br /> Section 1711. Nate that maximun clearance between intermediate rails <br /> is 6 inches anu guardrail height should be 42 inches. (Guardrails at <br /> the sides oP open stairways msy have a height as permitted for <br /> handrails.) Section 1711, <br /> � Shower stall walls should be finished with a hard, nonabsorbent <br /> surface to a height of 70 inches above the drain inlet. Section <br /> 510(b). Fiberglass or other prefabricated finishes should be covered <br /> by an evaluation report or complete ,justifying data under Section 107 <br /> should be submitted. <br /> j6: Water closet stonl shall be located in clear space a minimum of 30 <br /> inches wide �vith a minimum clear space in front oP the water closet <br /> stool at least 24 inches. Section 511(a). Unit 'C' 2id bath. <br /> �RooP coverings are required to be Class B, Table Nn. 32-A. Details <br /> �C� or speciPications complying with Section 3204 are required. <br /> �B:Attic access opening (minimun 22 inches by 30 inches) should be <br /> provided with minimum clear headroom oP 30 inches. Section 3205(a). <br /> �[ Attic ventilation should be provided. Section 3205(c). <br /> / ,� <br /> '42.� Thermal and acoustical insulation should comply with Section 1713. <br /> � Factory-built Pireplace and chimneys should comply with Section 3705. <br /> �4: Provide IC80 Evaluation Report No. or test data Prom an approved <br /> testinq 1aboratorv fL pproved Pactory-built fireplace and chimney <br /> to be Used. Section �570�. <br /> (A3: Provide dimensions of hearth extension which conform to the <br /> conditions of listing and manufacturer's installation instructions. <br /> � <br />