For this project, we had to squeeze a 12 x 20 ft addition between the house and the garage. This was done by removing the breezeway and the garage roof and building a whole new structure for it to sit within.
This is where the sunroom is goingThis little breezeway between the house and the garageStarted by removing the breezewayThere is about 12 ft between the house and the garageThe roof of the garage wouldn’t accommodate the sunroom additionremoving the roof of the garageThe old joists couldn’t support a roof to the sunroom additionWe used corner bracing to keep the walls stiffA sextant was used to layout the footing for the additionThe color of the footing location depict weight loadHelical piles were used as footingsThe helical piles used for footings are rated between 3,000 and 5,000 lbsSetting the first post on top of the helical pile footingThe sunroom is raised to match the floor height of the house2×8 joists were affixed to 2×10 with steel hangersThis floor will have a zipboard bottom and be insulationThe beams for the roof being installedThis 4 x 12 beams were installed on top of postsThis ridge beam will support the raftersHere you can see the difference in height of the old breezeway and the new sunroomThese 6×12 beams will support the new roof over the garageThe beams were joined together with a scarf joint to make the 26 ft spanInstalling the roof raftersThis 6×12 beam supports the dual pitch roofUsing post and beam construction allowed the new roof to be built over the garage wallsThis dormer goes out over the sunroom5/8 inch zip boars were used to sheath the roofAbout 2 ft was borrowed from the garage to make the sunroom biggerThe rafters over the garage getting sheathed with zip boardThe rafters were cantilevered over the 6x wall to give a 2 foot overhangThe 2 foot overhang of the roof will provide great shielding to the 6 foot patio doorDetail of dormer from underneithThe seams on the zip board were weatherized with zip tape to create a waterproof membraneSubfloor of the sunroom was 3/4 inch OSBThe 6 foot patio door going inShowing the 2 foot borrowed from the garage to enlarge the sunroomDetail of the LVL structural support and rafter tie-in where the sunroom roof meets the garage roofBack-framing the old garage wall to meet the new roofIceblock going on the roof with felt before shinglingFinished valley off the sunroom dormerFinished ridge cap over the sun roomFinished asphalt shingling over the garage showing the dual pitch roofR-49 Insulation in the attic spaceR-13 polyisocyanurate foam going over R-21 batt insulation, bringing the total R value of the ceiling to R-33.Furring strip screwed through the fiberboard to support drywall1/2 inch drywall going in using a drywall hoistThe vaulted ceiling is 10 ft tallThe drywall finished being hungThe drywall being taped and muddedDetail of the drywall vaulted ceilingSkim coat over the drywallShear bracing detailFront porch going inTrim and stairs installedThe roof was designed to go over the porchSiding was installed to match the houseRead deck being installed behind the sunroomFinished deck behind the sunroomA white oak floor was installed inside the mudroomThe white oak floor is 3/4 inch thinckTrim moulding going inFinish detail of front door with trim and moulding installed
