CPB310 Melbourne Junior School - Supply only of roof lights

The tenderers are to provide a quotation for the Supply & deliver to site only Roof lights and associated fittings as shown on the attached information at Melbourne Junior School.

Site Address
Melbourne Junior School,
Pack Horse Road,
Melbourne,
Derby,
Derbyshire,
DE73 8JE

Roof lights: 1,4,6,9,14,22,23,27,30,33,34,35,38,41,42,43,45,61,63

1. 19 No @ 1000mm x 1000mm roof opening size, N hit and miss ventilation kerb 160mm minimum height to underside of vent, manufactured in self finish UPVC with vertical UPVC insulation stop to sleeve over existing upstand and fit direct to roof deck TBC, complete with dome shaped triple skin. roof light, 3mm uv 1protected clear polycarbonate outer skin, 2mm clear polycarbonate middle skin, 2mm diffused polycarbonate inner skin, supplied with security fixings.

? To sleeve-over existing upstand 900mm x 900mm external size, 200mm high (Please include for cut-to-falls insulation).



Roof lights: 3,8,10,11,12,16,17,18,19,20,21,24,25,26,29,31,36,37,47,48,50,51,53,55,57,59,64,66,67,6,8.69,70


2. 32 No @ 1000mm x 1000mm roof opening size, N hit and miss ventilation kerb with N pole operated worm gear opening 160mm minimum height to underside of vent, manufactured in self finish UPVC with vertical UPVC insulation stop to sleeve over existing upstand and fit direct to roof deck TBC, complete with dome shaped triple skin roof light, 3mm uv protected clear polycarbonate outer skin, 2mm clear polycarbonate middle skin, 2mm diffused polycarbonate inner skin, supplied with security fixings.

? Worm gear on a bar To sleeve-over existing upstand 900mm x 900mm external size, 200mm high



Roof lights: 7,39,40,49,56,60

3. 6 No @ 1000mm x 1000mm roof opening size, N hit and miss ventilation kerb 160mm minimum height to underside of vent, manufactured in self finish UPVC with vertical UPVC insulation stop to sleeve over existing upstand and fit direct to roof deck TBC, complete with dome shaped triple skin roof light, 3mm uv protected clear polycarbonate outer skin, 2mm clear polycarbonate middle skin, 2mm diffused polycarbonate inner skin, fitted with 6" extractor fan supplied with security fixings.

? To sleeve-over existing upstand 900mm x 900mm external size, 200mm high



Roof light: 72

4. 1 No @ 1000mm x 1000mm roof opening size, N hit and miss ventilation kerb 160mm minimum height to underside of vent, manufactured in self finish UPVC with vertical UPVC insulation stop to sleeve over existing upstand and fit direct to roof deck TBC, complete with dome shaped triple skin roof light, 3mm uv protected clear polycarbonate outer skin, 2mm clear polycarbonate middle skin, 2mm diffused polycarbonate inner skin, fitted with 6" extractor fan supplied with security fixings.

? To sleeve-over existing upstand 900mm x 900mm external size, 200mm high



Roof light: 32

5. 1No @ 850mm x 850mm roof opening size, N hit and miss ventilation kerb 160mm minimum height to underside of vent, manufactured in self finish UPVC with vertical UPVC base fixing to an existing built up kerb below the depth of the new insulation TBC, complete with dome shaped triple skin roof light, 3mm uv protected clear polycarbonate outer skin, 2mm clear polycarbonate middle skin, 2mm diffused polycarbonate inner skin, supplied with security fixings.



Roof light: 71

6. 1 No 1000mm x 1000mm roof opening size, N hit and miss ventilation kerb 160mm minimum height to underside of vent, manufactured in self finish UPVC with vertical UPVC insulation stop to sleeve over existing upstand and fit direct to roof deck TBC, complete with dome shaped triple skin roof light, 3mm uv protected clear polycarbonate outer skin, 2mm clear polycarbonate middle skin, 2mm diffused polycarbonate inner skin, supplied with security fixings.

? To sleeve-over existing upstand 900mm x 900mm external size, 200mm high.




PLEASE NOTE - IMPORTANT INFORMATION


The attached roof light specification is based on the existing roof being stripped of all existing chippings, down to existing roof covering, and overlaid with new cut to falls insulation scheme and built up felt roof system.

Due to existing GPR liners, all roof lights with the exception of RL 32 are to be over sleeve kerbs. Contractor must remove all existing glazing and ancillary framework, leaving in place the existing weathered GRP kerb below, which will be over sleeved with new UPVC kerbs.

All additional height to suit the new cut to falls insulation, and maintain a minimum 150mm above finished roof, will be included for in the new roof light

Roof light 32 has an existing solid timber kerb that is 100mm wide. Contractor must remove existing adapter kerb style roof light, leaving in place the weathered timber kerb below. New UPVC roof light kerb will fix to the top of the existing timber kerb and be weathered externally with the new roofing membrane. All additional height to suit the new cut to falls insulation, and maintain a minimum 150mm above finished roof, will be included for in the new roof light

All ventilation is on a like for like basis, as discussed on site with Derbyshire County Council

Roof lights 39, 40, 41 and 50 are very close to adjacent hall. Further surveys are required to determine if these can be over sleeved properly or not, or if they have to change spec. These units have been allowed for as over sleeves for the purpose of the quote, as
agreed with Derbyshire County Council

All roof lights are to be supplied with triple skin polycarbonate domes, with diffused inner skin, to give light transmittance of no less than 70%, with a Ud value for the whole roof light of 1.62/m2k or better.

Final survey required, including full internal survey, prior to production.



We invite quotations from competent Roof lights and associated fittings approved suppliers for the Supply & deliver to site only at Melbourne Junior School.


Tenderers are required to download and complete the attached tender documentation and submit along with all the requested information including their quotation in accordance with the attached documentation. (Including Drawings, Specification and Schedule).


We encourage tenderers to provide their anticipated lead-in period from receipt of an official order. Please carefully read all attachments and documentation before tendering.