Tying Roof To Parapet Wall
Trusses outriggers fixed to parapet wall with framing anchor.
Tying roof to parapet wall. Roof anchors can be as simple as a d ring connection or as complex as a complete lifeline system. Install a non penetrating full height railing. Wind loadings should be calculated according to the procedures in bs 6399 2. Must overlap exterior wall finish.
While a roof parapet wall may seem like a small detail in the grand scheme of the entire building design it can actually change the dynamic of an entire roof both in terms of cosmetic detailing and safety. Both permanent and temporary roof anchor points are available. A parapet roof is simply put when a building s outermost walls extend upwards past the roof around the edges most often by a few feet. Unique tubular design allows for easier placement and.
If penetrating the outside of the wall is not an option a freestanding non penetrating railing can be used to keep people back to from the roof edge. Below are two photographs of roof wall step flashing completed and effective of a slate roof against a brick wall below left and in process with step flashing against a dormer sidewall before the dormer siding has been put in place below right. Proper roof wall abutment flashing examples. Courtesy of max baker and the national research council of canada.
We offer railings that attach to the top of the parapet. The upper slip tie. Tie down products roof zone residential roofing catalog core cutter guardrails residential guardrails zip rail shingle cutter parapet guardrail hoisting wheel tear off tools spud bars parapet wall and universal guardrail system previous next adjustable and easy to use guardrail system for parapet walls and floor slabs. The flat roofing material must go up the wall a minimum of 12 or up the wall and over the top of the wall if the wall is less than 12 high.
Here is an attempt though maybe not a very good one to make the roof flashing serve also as a through the wall flashing with a tile roof. Waling plate to roof pitch. Anchor points are usually installed on the roof and are used to connect lanyards lifelines and other forms of tie off which prevent a worker from falling. If you didn t get it right you concentrated the stresses at roof edges and you could suck in a parapet or tear or rip a membrane at the parapet photographs 3 and 4.
Figure 4 conclusion next time you have a project with parapets remember that extra care needs to be taken to ensure that the trusses and or wall frames are designed manufactured and installed correctly. Gable end wall parapet framing. 9 wall tie in minimum 2 mm 0 078 self adhered modified bitumen or flexible membrane manufacturers approved detail. If you can penetrate your roof parapet there are several roof parapet railing solutions.
Parapet walls will be subjected to wind loads.