Overlap For Roof Membrane

Start at the low point of the roof and position a perimeter 39 or 991mm roll of tpo roof membrane square with the roof edge.

Overlap for roof membrane.

All field sheets incorporate 6 control lines for overlap and fastener placement. More overlap is used at roof edges and transitions while less overlap is required across the main roof area. Continue up the roof laying lengths of breather membrane. If your panels aren t layered properly water damage can occur.

Check that this is the case adding temporary clout nails to the top of the membrane. If there is no ridge ventilation the breather membrane should go over the ridge and overlap each side of the ridge line by the required overlap. Align the roll for the correct overlap and continue removing the upper half of the release sheet. Heat welded seams provide superior strength.

Grace roof detail membrane is the only product available today designed specifically for waterproofing critical roof detail areas. We suggest a dip of approximately 10 15mm. Finally a surfacing is applied to provide protection and an appealing aesthetic. Metal roofs though less appealing than shingle or tile is a more fire resistant and heat reflecting roofing option.

Place the end of the sheet according to instructions to allow the correct overlap. Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope roofing system. The easy installation involves placing metal panels on your roof but you ll need to be mindful of metal roof overlap. Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price.

The final covering of tiles or slates will provide a secure fixing. Pull back some of the release sheet from the upper half of the membrane. The overlapping felt creates a secondary barrier for moisture and wicks water away from the shingles above and the sheathing below. Therefore a 2 inch overlap provides redundancy at the edges where the barrier is weakest.

Roll out the membrane to the end of the roof run. Video of the day. Roofing felt is required to overlap 2 inches over the lower felt course. Nail along the top edge of the membrane to hold it in place while the adhesive sets up.

The surface layer can be a mineral cap sheet fused to the layers below or just a final layer of asphalt mopped across the entire roof. Based on the grace ice and water shield technology grace roof detail membrane is a flexible product that conforms tightly to common roof details such as skylights chimneys and dormer walls. Try to ensure they are above the line at which the second length of membrane will overlap.