*Original guide by Permavent
Before installing the Easy Roof System, please be aware of the following guidelines:
- The roof should be installed in the traditional way, with the addition of the Easy Roof System products where
- Use one Easy Slate for each slate that is installed.
- The Easy Roof System uses our unique patented super seals, flexible rubber which seals against the back of
the slate. The best performance is therefore achieved using smooth slates.
(Consideration should be given to rustic, uneven or riven slates as optimum performance may be affected).
- In addition, all surfaces must be clean and free of any moss coverage prior to installation.
(Ensure to prevent/control coverage after installation).
- Ensure all health and safety requirements are implemented, especially when working at a height.
- Before installation, make sure ventilation requirements of the roof are met.
- Easy Roof System products are also ideal for the Scottish practice method of nailing slates directly to sarking
- Easy Slate can be used with slate hooks.
- The Easy Roof System is a Permavent product and it’s performance is only guaranteed when used as a
complete system using Permavent Dry breather membrane (including single-sided Permalap tape).
Install Easy Tray at the eaves allowing enough overhang to clear the gutter brackets (on a steeper pitch you can use the rear step and the front step on lower pitches). Easy Tray is 1200mm long and is designed to be fully supported by butt joining on a rafter.
Easy Tray can be easily trimmed and cut to fit using good quality Tin snips.
Easy Tray can be installed over the fascia or over ventilators and is easily fixed at the top using a clout nail. Do not nail through the lower section of Easy Tray.
Permavent double sided tape should be applied over the line of the fascia. Instruction
Permavent DRY should then be adhered to the Easy Tray along this line. Permavent Membranes should not fall all the way into the guttering.
Permavent Membranes should be first laid up the valley section if required.
Permavent Membranes should then be unrolled in the usual way following the fascia line and overlapping the valley. It should first be pulled tight and then released to allow approximately 5mm of sag between the rafters.
Permavent double-sided tape* should be applied along the lap line before moving up to the next course. The tape can be pressed onto each rafter and it will naturally stick between the rafters. Taping the laps will also eliminate the rare occasions when wind driven rain can be forced under the laps if the roof is not covered in. *When installing Permavent Dry use single-sided Permalap tape.
Install the next course with at least 150mm lap below a 25 degree pitch. Remove the covering layer from the tape and allow the top lap to stick to the tape.
Install 4 longitude valley battens (2 either side) with a gap of 25mm between. Then install the horizontal battens in the usual way. The verge battens can be left long.
Permavent membranes should be laid at least 75mm up any abutment such as a wall or chimney (dormer cheeks should then be overlaid vertically with the membrane). The battens should then be installed with approximately 5mm gap from the abutment. There should not be more than 20mm gap between the wall and the end rafter. With a large gap the membrane can gradually fall down this gap and should therefore be supported or fixed to the abutment using the double sided tape.
Gauge the verge overhang to coincide with the lateral gauge of the slates, we recommend that the slates overhang Easy Verge by 3-5mm although flush fitting or up to 10mm is also acceptable. Allow 3mm when cutting the battens for the thickness of Easy Verge.
Cut the battens to the required length to create a perfectly straight verge.
Make a small cut along the lower length of Easy Verge just behind the drip. This cut will allow the undercloak part to be bent up and close off the eaves detail.
Depending on the angle of the roof, the lower section of Easy Verge should be removed to allow for the eaves tray. Easy Verge can be fixed to the top of the fascia board
Slide Easy Verge over the end of the battens whilst keeping the membrane underneath Easy Verge, ensure a straight line and fix with a few clout nails. There is no need to fully secure Easy Verge at this point because every slate will be fixed through it and thus a fully secured verge is formed.
To extend Easy Verge simply butt join it as it extends up the verge. If the join does not fall on a batten end then simply insert a batten off cut to support the butt joint.
Do not use cut slates less than 150mm wide for the verge or abutments.
Easy Valley should be ‘v’ cut and positioned to allow the rainwater to flow into the guttering.
Position the valley centrally up the valley and on top of the battens, secure the edge with a few clout nails. To extend Easy Valley it should be lapped by at least 150mm, the lap being double sealed with Easy Seal or similar high quality silicone based sealant.
Apply Easy Soaker on top of the battens against the abutment. To instantly position Easy Soaker apply Permavent double-sided tape to the upstand of Easy Soaker and stick it to the abutment. To avoid the first slate being ‘kicked up’ the flexible seals can be trimmed at the lower section just above the fascia. Easy Soaker should remain flat and not allowed to ‘Kink’. The top min 150mm of Easy Soaker should have the rubber seals removed to allow the lap of the next Soaker. Part of this lap should always be over at least 1 batten.
Install the slate eaves/starter course in the usual way, Easy Slate should be installed underneath the first full length slate. Easy Slate must always be the full length of each slate and one must be used for every full slate on the whole roof. Always ensure that the flexible seals are leaning towards the side edge of each slate.
The flexible super seals will prevent water running back under the slate.
Easy Slate can be mitre cut at the valley section. Easy Valley should be installed fully down to centre upstands of the valley.
Do not install Easy Slate over the top of Easy Verge, Soaker and Valley. Copper rivets and slate hooks must be centrally located. *Copper rivets must locate between the centre seals. The seals must always lean to the edge of the slate.
Cut the valley slates in the usual way. Fix these slates by nailing through Easy Valley on the outside edge around the smallest rubber seal only. Do not make any holes in the central region between the four largest central seals.
Continue to slate up the valley in the usual way.
When sections of the valley have been completed, then the Valley Cap can be pressed into position. When using thicker slates youy might require the Valley Plus bar that is used to extend the length of the valley cap and ensuring that the cap is fully located
Ensure the centre channel is free from debris, locate the hooks at the top of the channel and press down until the top seals of the cap are neatly located on top of the slates. Screw the top screw fully down and this will lock the cap into position.
The valley cap has a rebate at the lower end and this should overlap the previously installed cap and cover the screw head. Ensure that there is a gap between each length of the cap. The rebate will allow for the expansion of the cap. The caps should never be butted fully together end to end (especially in cold weather).
Easy Slate can be used with nailed slates or spiked slate hooks. When using Easy Slate with spiked slate hooks the top of Easy Slate should be fixed to the batten using a clout nail and this will prevent Easy Slate from spinning out of the central alignment.
Continue to slate in the usual way using one Easy Slate for each slate used. Easy Slate 600 can be used on slates shorter than 600mm, it can either be cut or just left long.
Dry ridge and hip systems must be used at lower pitches. The ridge roll should be fully stuck to the hip/ridge slate using the tape that is applied to the underside of the ridge roll. Cover flashings at wall and abutments should be fixed in place using our double-sided butyl tape. Top flashing should extend at least 200mm down the top slate on low pitches. The side lap of the top flashing should also be sealed on a low pitch.