York Roofing | Newbegin Building

Tel: 01904 654381

Roofing

Help, My Roof Is Leaking!

If water's coming through the roof, contact us as soon as possible!

Climbing onto the roof should be left to the professionals, but if you absolutely must, remember that the rafters may not bear your weight. A special roof ladder with wheels to speed it along the tiles without damage and a large hook to hold it in place can be hired from HSS Hire.

How To Check A Roof's Condition

Whether you've noticed signs of damp or just want to pre-empt potential problems, make some basic checks. Stand on the opposite side of the road or in the garden and use binoculars for a closer inspection.

Look out for:

  • Loose or missing tiles or slates.
  • Sagging gutters and loose brackets.
  • Blocked gutters.
  • A leaking joint in a gutter or downpipe.
  • Defective or missing flashing (the lead or zinc sheet used where the roof adjoins any parapet walls or chimney stack).
  • Loose, cracked or crumbly mortar or render.
  • Plants growing out of the roof or guttering.
  • A leaning chimney stack or parapet wall.
  • Evidence of birds or vermin.

Checking From Inside

  • From within the loft, check all the main timbers and joints between timbers and wall. Joints should be tight, timbers dry and solid, and there should be no evidence of rot or damage from insects.
  • In an old building, when looking up from within the loft, you can see the battens supporting the tiles (unless covered over by felt). If you can see daylight, this is evidence of a missing or damaged tile or slate.
  • Damp patches on the ceilings are a tell-tale sign of roof problems.

Flat Roofs

Look out for:

  • Pooling on the lowest part of the roof.
  • Blocked gutters, or leaves or moss built up on the roof.
  • Splits in the roof covering.
  • Small repairs can be made to the covering but if leaks have led to structural damage to the timbers, the roof covering may have to be lifted to allow access, and then completely replaced.
If you need any further advice or information please contact us on the contact page, by emailing or calling 01904 654381.

We are here to help.

Damp Proofing

Damp proofing is often the most appropriate treatment for properties which have identified damp problems, such as rising damp or penetrating damp.

Damp Proofing for Your Home

There are a number of ways that damp proofing can be carried out, which will include either of the following options or even a combination, if that is what is required to solve the damp problem.

Installation of a chemical injected damp proof course together with associated re-plastering

A structural waterproofing system incorporating a damp proof membrane and possible sump pump.

The use of conventional cementitious tanking system.

We offer guarantees with our damp proofing treatments for both rising damp and penetrating damp.

Damp Proofing Solutions

The use of a low odour water-based silicone injection is generally regarded as the most effective type of damp proof course to prevent moisture rising through a wall and leading to rising damp.

Installation of damp proof course

Dependant on the thickness of walls, holes are drilled in the mortar / brick of external and internal walls to a pre-determined depth and at the correct level and spacing between holes.

These holes are then injected with damp proofing fluid (water-based silicone) to reduce the movement of water through the capillaries.

Damp proofing fluid should not be confused with a damp proof membrane.

The term membrane usually suggests a physical barrier, whereas the principal of silicone injection is to line the pores of the wall structure to stop moisture vertically rising by capillary action. The silicone does not block the pores of the wall, it only lines them.

Following the insertion of a damp proof course it is common for re-plastering to be required. Any new plastering has to prevent damp and salts present within the wall migrating onto the internal wall finish.

Re-plastering

The most common approach to re-plastering is using a dense sand and cement render as a backing coat incorporating a waterproof additive. Once dry, a gypsum skim coat is applied to give a smooth finish.

When the existing plaster is removed, there may be a lot of dust. We advise that adequate steps are taken to remove or cover furnishing for protection.

Re-decoration

Following re-plastering a minimum of at least two weeks must elapse before the new plaster can be decorated and all areas need to be visibly dry.

At this time decoration should only be with a water based permeable emulsion, vinyl paints should not be used.

Permanent decorations such as wall papers can be applied when the wall is fully dry, which can take up to a year and in some cases much longer.

Contact us for more information

Contact

Newbegin Building & Glazing
7 Greenfields
Haxby Road
York YO31 8LA

01904 654381