<p>The issue is with the small flat asphalt roof at the front of the building, this original roof has since been overlaid with a plain torch-applied felt with a solar reflective pint finish. The timber deck has collapsed in the gulley and other soft spots were noted across the roof area, suggesting that much of the decking is damaged. The existing plywood deck not the standard 18mm thick, (thinner) which is usual for flat roofs of this type, if an 18mm deck had been installed then its possible that it would not have collapsed and the roof could have been repaired.&nbsp;</p>

<p>The roof needs to be stripped entirely, a new 18mm plywood deck installed before a new roof system installed, as this is deemed new works, the new roof system will need to be insulate to comply with the current Building Regulations. There is a slight issue with the detailing along the rear of the roof, where it meets the higher level pitched roof, ideally we&#39;re be able to cut back the felt along the bottom of this detail, lift it up and install a metal cover flashing to protect the rear upstand of the flat roof, if the old felt can be re-heated and resealed, if not, than a high performance coating system would be applied. This should prove adequate, however, this is not ideal so we would have to qualify our guarantee accordingly, as water ingressing through the sloped roof could track under the new flat roof, to provide an ideal solution the sloped roof should also be upgraded, however, this would be costly.&nbsp;</p>

<ul>
	<li>Operatives to apply protective sheeting to work routes and working areas.</li>
	<li>To install a&nbsp;Stand Alone Handrail on roof.&nbsp;</li>
	<li>To strip off in stages the existing roofing system and old plywood decking, lower debrid to ground level and remove from site in skips, night seals would be installed to ensure the roof remains watertight between visits.&nbsp;</li>
	<li>To supply &amp; install a new warm roof system as manufactured by Messers Index Building Products consisting of:</li>
	<li>New deck - An 18mm thick roofing grade plywood, mechanically fixed to the existing timber joists at appropriate centres, tape all joints. Vaporu Barrier - A 2mm thick robur, torch applied, high performance felt.Insulation : A 120mm PIR Board to comply with current Building Regulations would be&nbsp;laid in a suitable adhesive. A timber rail will be affixed to the perimeter of<br />
	the roof, this is to protect the to edge of the new insulation board and&nbsp;prevent crushing, the 2mm Robur felt will be turned up and over the edge&nbsp;of the insulation board to ensure it is totally encapsulated.&nbsp;A thinner insulation board would be installed to form the gutter, to match&nbsp;the height of the existing outlet.&nbsp;Angle Fillets : Supply and fix to the base of all upstands and curbs a 50mm x 50mm fibre&nbsp;board angle filler, affixed in a suitable adhesive.&nbsp;Base Layer : 2mm thick Robur, torch-applied, high performance felt&nbsp;Cap Sheet : 4.5 mm thick, Nova, torch-applied high performance felt, with a mineral&nbsp;surface finish&nbsp;Details : Form all upstands, curbs and associated roofing details with a base layer&nbsp;and a cap sheet as specified above.&nbsp;Cover flashing: Carefully cut back the felt and lift the bottom of the felt along the rear&nbsp;upstand detail where it abuts the sloped roof, install a purpose made metal&nbsp;cover flashing to protect the top of the new felt upstand. Re-heat / stick the<br />
	felt back into place over the cover flashing, then apply a high-performance&nbsp;coating over same as a further precaution.</li>
	<li>To dismantle the handrail.&nbsp;</li>
	<li>Site to be left clean and tidy.</li>
</ul>

<p>The new roof system would be installed in accordance with the manufacturers guidelines to an overall roof area of approx 25m2.&nbsp;</p>

<p>Project Note: Ingress through the roof slope above and tracking underneath the new roof.&nbsp;</p>
