5718 COMMERCIAL AVE B 2025-09-10

• Please see'A402 Section'as I have added labels to the Exterior wall assembly. To meet with vapor barrier requirements, I have revised the exterior wall assembly to be comprised of 2"thick closed cell rigid foam installed against the exterior siding to be secured in place with'foamboard construction adhesive'and seated in place alongthe edges with spray foam.The rest of the space will be filled with R-15 fiberglass. This should satisfy vapor barrier requirements while providing a betterthan required R-rating 4. Please provide dwetting-garage separation per IRC table R302.6 accordingly. • Please see sheet'A402 Section'where I have added 5/8"type X GWB to the garage ceiling, and after demo'ing existing 5/8"interior GWB on the North wall to replace the existing insulation with the rigid foam and R-15 detail, I will replace in kind with new 5/8"GWB. 5. Per WSEC-R 2021, please refer to WSEC-R Table R402.1.3 for watt insulation and window u-factor requirement. I think l understand howthis works. Please see how table below explaining each condition: Fenestration U-factor- 0.30 Required I will be replacing the old windows and sliding door that are only U- 0.24 for Energy factor 0.50 with windows that are under 0.24.Compliant. credits Skylight"U-factor- NoW14.project Ceiling U factor- 0.026 Required Unvented 2"closed cell rigid insulation R-10 R21+R212x12joist 24 o.c.=0.019.Welt above Compliant. Above grade wall U factor 0.056 Required RA103.2.3 Advanced 2x6 @2ft oc,2 stud insulated corners Closest I could find,as I will exceed this with R-25 in a similar configuration Table RA103.3.1(5)R21batt T-1-11 ADV=0.053. Compliant. Floor U-factor 0.029 Required Table RA105.1(1) R-30 Floor, R-0 perimeter=0.029. Compliant I reallythink I have R-30 Floor, R-11 Perimeter=0.028. Compliant Stab of grade,F-factor None�n projc " Betow grade 2'17epth None�r►prpect .. Below'; rade 3 5'Depth Nong�nrpjec# . " 6etbw'grade 'Depth None to prpjec# 6. Please add smoke detector and heat detector per IRC 314.2,and add CO alarm per IRC 315.2.And please indicate that smoke detector,heat alarm and CO monitor are interconnected, hardwired with battery backup per IRC 314.4&314.6&315.5&315.6. •Smoke/Carbon monoxide combo(per R315.5)and separate but intertied heat alarm added to'A102 Reflected ceiling plan'. • Both will be on dedicated circuit per(R314.6),shown on'E101 Electrical panel'. •Since there is only one room,one of each will be installed. •Smoke/CO alarm is over 3ft from bathroom,and Heat alarm is over 10 ft from stove to avoid false alarms per R314.3.